Merging upstream version 1.71.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

54 files changed, 2871 insertions, 0 deletions

diff --git a/vendor/web-sys/tests/wasm/anchor_element.rs b/vendor/web-sys/tests/wasm/anchor_element.rs
new file mode 100644
index 000000000..7f09c2501
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/anchor_element.rs
@@ -0,0 +1,72 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlAnchorElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_a() -> HtmlAnchorElement;
+}
+
+#[wasm_bindgen_test]
+fn test_anchor_element() {
+    let element = new_a();
+    assert_eq!(element.target(), "", "Shouldn't have a target");
+    element.set_target("_blank");
+    assert_eq!(element.target(), "_blank", "Should have a target");
+
+    assert_eq!(element.download(), "", "Shouldn't have a download");
+    element.set_download("boop.png");
+    assert_eq!(element.download(), "boop.png", "Should have a download");
+
+    assert_eq!(element.ping(), "", "Shouldn't have a ping");
+    element.set_ping("boop");
+    assert_eq!(element.ping(), "boop", "Should have a ping");
+
+    assert_eq!(element.rel(), "", "Shouldn't have a rel");
+    element.set_rel("boop");
+    assert_eq!(element.rel(), "boop", "Should have a rel");
+
+    assert_eq!(
+        element.referrer_policy(),
+        "",
+        "Shouldn't have a referrer_policy"
+    );
+    element.set_referrer_policy("origin");
+    assert_eq!(
+        element.referrer_policy(),
+        "origin",
+        "Should have a referrer_policy"
+    );
+
+    assert_eq!(element.hreflang(), "", "Shouldn't have a hreflang");
+    element.set_hreflang("en-us");
+    assert_eq!(element.hreflang(), "en-us", "Should have a hreflang");
+
+    assert_eq!(element.type_(), "", "Shouldn't have a type");
+    element.set_type("text/plain");
+    assert_eq!(element.type_(), "text/plain", "Should have a type");
+
+    assert_eq!(element.text().unwrap(), "", "Shouldn't have a text");
+    element.set_text("Click me!").unwrap();
+    assert_eq!(element.text().unwrap(), "Click me!", "Should have a text");
+
+    assert_eq!(element.coords(), "", "Shouldn't have a coords");
+    element.set_coords("1,2,3");
+    assert_eq!(element.coords(), "1,2,3", "Should have a coords");
+
+    assert_eq!(element.charset(), "", "Shouldn't have a charset");
+    element.set_charset("thing");
+    assert_eq!(element.charset(), "thing", "Should have a charset");
+
+    assert_eq!(element.name(), "", "Shouldn't have a name");
+    element.set_name("thing");
+    assert_eq!(element.name(), "thing", "Should have a name");
+
+    assert_eq!(element.rev(), "", "Shouldn't have a rev");
+    element.set_rev("thing");
+    assert_eq!(element.rev(), "thing", "Should have a rev");
+
+    assert_eq!(element.shape(), "", "Shouldn't have a shape");
+    element.set_shape("thing");
+    assert_eq!(element.shape(), "thing", "Should have a shape");
+}
diff --git a/vendor/web-sys/tests/wasm/blob.js b/vendor/web-sys/tests/wasm/blob.js
new file mode 100644
index 000000000..9fdd18bf4
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/blob.js
@@ -0,0 +1,3 @@
+export function new_blob() {
+  return new Blob([ 1, 2, 3 ]);
+}
diff --git a/vendor/web-sys/tests/wasm/blob.rs b/vendor/web-sys/tests/wasm/blob.rs
new file mode 100644
index 000000000..726ffc715
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/blob.rs
@@ -0,0 +1,64 @@
+use js_sys::{Array, ArrayBuffer};
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::JsFuture;
+use wasm_bindgen_test::*;
+use web_sys::Blob;
+
+#[wasm_bindgen(module = "/tests/wasm/blob.js")]
+extern "C" {
+    fn new_blob() -> Blob;
+}
+
+#[wasm_bindgen_test]
+fn test_blob_from_js() {
+    let blob = new_blob();
+    assert!(blob.is_instance_of::<Blob>());
+    assert_eq!(blob.size(), 3.0);
+}
+
+#[wasm_bindgen_test]
+fn test_blob_from_bytes() {
+    let bytes = Array::new();
+    bytes.push(&1.into());
+    bytes.push(&2.into());
+    bytes.push(&3.into());
+
+    let blob = Blob::new_with_u8_array_sequence(&bytes.into()).unwrap();
+    assert!(blob.is_instance_of::<Blob>());
+    assert_eq!(blob.size(), 3.0);
+}
+
+#[wasm_bindgen_test]
+fn test_blob_empty() {
+    let blob = Blob::new().unwrap();
+    assert!(blob.is_instance_of::<Blob>());
+    assert_eq!(blob.size(), 0.0);
+}
+
+#[wasm_bindgen_test]
+async fn test_blob_array_buffer() {
+    let bytes = Array::new();
+    bytes.push(&1.into());
+    bytes.push(&2.into());
+    bytes.push(&3.into());
+
+    let blob = Blob::new_with_u8_array_sequence(&bytes.into()).unwrap();
+
+    let buffer: ArrayBuffer = JsFuture::from(blob.array_buffer()).await.unwrap().into();
+
+    assert!(blob.is_instance_of::<Blob>());
+    assert!(buffer.is_instance_of::<ArrayBuffer>());
+    assert_eq!(blob.size(), buffer.byte_length() as f64);
+}
+
+#[wasm_bindgen_test]
+async fn test_blob_text() {
+    let strings = Array::new();
+    strings.push(&"hello".into());
+
+    let blob = Blob::new_with_str_sequence(&strings.into()).unwrap();
+    let string = JsFuture::from(blob.text()).await.unwrap();
+
+    assert!(blob.is_instance_of::<Blob>());
+    assert_eq!(string, "hello")
+}
diff --git a/vendor/web-sys/tests/wasm/body_element.rs b/vendor/web-sys/tests/wasm/body_element.rs
new file mode 100644
index 000000000..daf5769ff
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/body_element.rs
@@ -0,0 +1,37 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlBodyElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_body() -> HtmlBodyElement;
+}
+
+#[wasm_bindgen_test]
+fn test_body_element() {
+    let element = new_body();
+    assert_eq!(element.text(), "", "Shouldn't have a text");
+    element.set_text("boop");
+    assert_eq!(element.text(), "boop", "Should have a text");
+
+    // Legacy color setting
+    assert_eq!(element.link(), "", "Shouldn't have a link");
+    element.set_link("blue");
+    assert_eq!(element.link(), "blue", "Should have a link");
+
+    assert_eq!(element.v_link(), "", "Shouldn't have a v_link");
+    element.set_v_link("purple");
+    assert_eq!(element.v_link(), "purple", "Should have a v_link");
+
+    assert_eq!(element.a_link(), "", "Shouldn't have a a_link");
+    element.set_a_link("purple");
+    assert_eq!(element.a_link(), "purple", "Should have a a_link");
+
+    assert_eq!(element.bg_color(), "", "Shouldn't have a bg_color");
+    element.set_bg_color("yellow");
+    assert_eq!(element.bg_color(), "yellow", "Should have a bg_color");
+
+    assert_eq!(element.background(), "", "Shouldn't have a background");
+    element.set_background("image");
+    assert_eq!(element.background(), "image", "Should have a background");
+}
diff --git a/vendor/web-sys/tests/wasm/br_element.rs b/vendor/web-sys/tests/wasm/br_element.rs
new file mode 100644
index 000000000..e3c4c667c
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/br_element.rs
@@ -0,0 +1,17 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlBrElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_br() -> HtmlBrElement;
+}
+
+#[wasm_bindgen_test]
+fn test_br_element() {
+    let element = new_br();
+    // Legacy clear method
+    assert_eq!(element.clear(), "", "Shouldn't have a clear");
+    element.set_clear("boop");
+    assert_eq!(element.clear(), "boop", "Should have a clear");
+}
diff --git a/vendor/web-sys/tests/wasm/button_element.rs b/vendor/web-sys/tests/wasm/button_element.rs
new file mode 100644
index 000000000..d94160aac
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/button_element.rs
@@ -0,0 +1,122 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::{HtmlButtonElement, HtmlFormElement, Node};
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_button() -> HtmlButtonElement;
+    fn new_form() -> HtmlFormElement;
+}
+
+#[wasm_bindgen_test]
+fn test_button_element() {
+    let element = new_button();
+    let location = web_sys::window().unwrap().location().href().unwrap();
+    assert!(!element.autofocus(), "Shouldn't have autofocus");
+    element.set_autofocus(true);
+    assert!(element.autofocus(), "Should have autofocus");
+
+    assert!(!element.disabled(), "Shouldn't be disabled");
+    element.set_disabled(true);
+    assert!(element.disabled(), "Should be disabled");
+
+    match element.form() {
+        None => assert!(true, "Shouldn't have a form"),
+        _ => assert!(false, "Shouldn't have a form"),
+    };
+
+    assert_eq!(
+        element.form_action(),
+        location,
+        "Should have the pages location"
+    );
+    element.set_form_action("http://boop.com/");
+    assert_eq!(
+        element.form_action(),
+        "http://boop.com/",
+        "Should have a form_action"
+    );
+
+    assert_eq!(element.form_enctype(), "", "Should have no enctype");
+    element.set_form_enctype("text/plain");
+    assert_eq!(
+        element.form_enctype(),
+        "text/plain",
+        "Should have a plain text enctype"
+    );
+
+    assert_eq!(element.form_method(), "", "Should have no method");
+    element.set_form_method("POST");
+    assert_eq!(element.form_method(), "post", "Should have a POST method");
+
+    assert!(!element.form_no_validate(), "Should validate");
+    element.set_form_no_validate(true);
+    assert!(element.form_no_validate(), "Should not validate");
+
+    assert_eq!(element.form_target(), "", "Should have no target");
+    element.set_form_target("_blank");
+    assert_eq!(
+        element.form_target(),
+        "_blank",
+        "Should have a _blank target"
+    );
+
+    assert_eq!(element.name(), "", "Shouldn't have a name");
+    element.set_name("button-name");
+    assert_eq!(element.name(), "button-name", "Should have a name");
+
+    assert_eq!(element.type_(), "submit", "Shouldn't have a type");
+    element.set_type("reset");
+    assert_eq!(element.type_(), "reset", "Should have a reset type");
+
+    assert_eq!(element.value(), "", "Shouldn't have a value");
+    element.set_value("value1");
+    assert_eq!(element.value(), "value1", "Should have a value");
+
+    assert_eq!(element.will_validate(), false, "Shouldn't validate");
+    assert_eq!(
+        element.validation_message().unwrap(),
+        "",
+        "Shouldn't have a value"
+    );
+    assert_eq!(element.check_validity(), true, "Should be valid");
+    assert_eq!(element.report_validity(), true, "Should be valid");
+    element.set_custom_validity("Boop"); // Method exists but doesn't impact validity
+    assert_eq!(element.check_validity(), true, "Should be valid");
+    assert_eq!(element.report_validity(), true, "Should be valid");
+
+    assert_eq!(
+        element.labels().length(),
+        0,
+        "Should return a node list with no elements"
+    );
+}
+
+#[wasm_bindgen_test]
+fn test_button_element_in_form() {
+    let button = new_button();
+    button.set_type("reset");
+    let form = new_form();
+    form.set_name("test-form");
+
+    // TODO: implement `Clone` for types in `web_sys` to make this easier.
+    let button = JsValue::from(button);
+    let as_node = Node::from(button.clone());
+    Node::from(JsValue::from(form))
+        .append_child(&as_node)
+        .unwrap();
+
+    let element = HtmlButtonElement::from(button);
+    match element.form() {
+        None => assert!(false, "Should have a form"),
+        Some(form) => {
+            assert!(true, "Should have a form");
+            assert_eq!(
+                form.name(),
+                "test-form",
+                "Form should have a name of test-form"
+            );
+        }
+    };
+    assert_eq!(element.type_(), "reset", "Should have a type");
+}
diff --git a/vendor/web-sys/tests/wasm/console.rs b/vendor/web-sys/tests/wasm/console.rs
new file mode 100644
index 000000000..b83638569
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/console.rs
@@ -0,0 +1,8 @@
+use wasm_bindgen_test::*;
+use web_sys::console;
+
+#[wasm_bindgen_test]
+fn test_console() {
+    console::time_with_label("test label");
+    console::time_end_with_label("test label");
+}
diff --git a/vendor/web-sys/tests/wasm/div_element.rs b/vendor/web-sys/tests/wasm/div_element.rs
new file mode 100644
index 000000000..8b95f082d
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/div_element.rs
@@ -0,0 +1,16 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlDivElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_div() -> HtmlDivElement;
+}
+
+#[wasm_bindgen_test]
+fn test_div_element() {
+    let element = new_div();
+    assert_eq!(element.align(), "", "Shouldn't have a align");
+    element.set_align("right");
+    assert_eq!(element.align(), "right", "Should have a align");
+}
diff --git a/vendor/web-sys/tests/wasm/dom_point.rs b/vendor/web-sys/tests/wasm/dom_point.rs
new file mode 100644
index 000000000..4ed22c37f
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/dom_point.rs
@@ -0,0 +1,33 @@
+use wasm_bindgen::JsValue;
+use wasm_bindgen_test::*;
+use web_sys::{DomPoint, DomPointReadOnly};
+
+#[wasm_bindgen_test]
+fn dom_point() {
+    let x = DomPoint::new_with_x_and_y_and_z_and_w(1.0, 2.0, 3.0, 4.0).unwrap();
+    assert_eq!(x.x(), 1.0);
+    x.set_x(1.5);
+    assert_eq!(x.x(), 1.5);
+
+    assert_eq!(x.y(), 2.0);
+    x.set_y(2.5);
+    assert_eq!(x.y(), 2.5);
+
+    assert_eq!(x.z(), 3.0);
+    x.set_z(3.5);
+    assert_eq!(x.z(), 3.5);
+
+    assert_eq!(x.w(), 4.0);
+    x.set_w(4.5);
+    assert_eq!(x.w(), 4.5);
+}
+
+#[wasm_bindgen_test]
+fn dom_point_readonly() {
+    let x = DomPoint::new_with_x_and_y_and_z_and_w(1.0, 2.0, 3.0, 4.0).unwrap();
+    let x = DomPointReadOnly::from(JsValue::from(x));
+    assert_eq!(x.x(), 1.0);
+    assert_eq!(x.y(), 2.0);
+    assert_eq!(x.z(), 3.0);
+    assert_eq!(x.w(), 4.0);
+}
diff --git a/vendor/web-sys/tests/wasm/element.js b/vendor/web-sys/tests/wasm/element.js
new file mode 100644
index 000000000..ed51fbdbe
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/element.js
@@ -0,0 +1,158 @@
+export function new_a() {
+  return document.createElement("a");
+}
+
+export function new_body() {
+  return document.createElement("body");
+}
+
+export function new_br() {
+  return document.createElement("br");
+}
+
+export function new_button() {
+  return document.createElement("button");
+}
+
+export function new_caption() {
+    return document.createElement("caption");
+}
+
+export function new_del() {
+    return document.createElement("del");
+}
+
+export function new_div() {
+    return document.createElement("div");
+}
+
+export function new_form() {
+  return document.createElement("form");
+}
+
+export function new_food_options_collection() {
+    return new_select_with_food_opts().options;
+}
+
+export function new_head() {
+  return document.createElement("head");
+}
+
+export function new_heading() {
+    return document.createElement("h1");
+}
+
+export function new_hr() {
+    return document.createElement("hr");
+}
+
+export function new_html() {
+  return document.createElement("html");
+}
+
+export function new_input() {
+    return document.createElement("input");
+}
+
+export function new_ins() {
+    return document.createElement("ins");
+}
+
+export function new_menu() {
+    return document.createElement("menu");
+}
+
+export function new_menuitem() {
+    return document.createElement("menuitem");
+}
+
+export function new_meta() {
+    return document.createElement("meta");
+}
+
+export function new_meter() {
+    return document.createElement("meter");
+}
+
+export function new_olist() {
+    return document.createElement("ol");
+}
+
+export function new_optgroup() {
+    return document.createElement("optgroup");
+}
+
+export function new_output() {
+    return document.createElement("output");
+}
+
+export function new_paragraph() {
+    return document.createElement("p");
+}
+
+export function new_param() {
+    return document.createElement("param");
+}
+
+export function new_pre() {
+    return document.createElement("pre");
+}
+
+export function new_progress() {
+    return document.createElement("progress");
+}
+
+export function new_quote() {
+    return document.createElement("q");
+}
+
+export function new_script() {
+  return document.createElement("script");
+}
+
+export function new_select_with_food_opts() {
+  let select = document.createElement("select");
+  let opts = ["tomato", "potato", "orange", "apple"];
+
+  for(let i = 0; i < opts.length; i++) {
+      let opt = document.createElement("option");
+      opt.value = opts[i];
+      opt.text = opts[i];
+      select.appendChild(opt);
+  }
+  return select;
+}
+
+export function new_slot() {
+    return document.createElement("slot");
+}
+
+export function new_span() {
+  return document.createElement("span");
+}
+
+export function new_style() {
+  return document.createElement("style");
+}
+
+export function new_table() {
+    return document.createElement("table");
+}
+
+export function new_tfoot() {
+    return document.createElement("tfoot");
+}
+
+export function new_thead() {
+    return document.createElement("thead");
+}
+
+export function new_title() {
+  return document.createElement("title");
+}
+
+export function new_xpath_result() {
+    let xmlDoc = new DOMParser().parseFromString("<root><value>tomato</value></root>", "application/xml");
+    let xpathResult = xmlDoc.evaluate("/root//value", xmlDoc, null, XPathResult.ANY_TYPE, null);
+    return xpathResult;
+}
diff --git a/vendor/web-sys/tests/wasm/element.rs b/vendor/web-sys/tests/wasm/element.rs
new file mode 100644
index 000000000..a408a9c7c
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/element.rs
@@ -0,0 +1,226 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::Element;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_div() -> Element;
+}
+
+#[wasm_bindgen_test]
+fn element() {
+    /* Tests needed for:
+      namespace_uri
+    */
+    let element = new_div();
+
+    assert_eq!(element, element);
+
+    assert_eq!(element.prefix(), None, "Shouldn't have a prefix");
+    assert_eq!(element.local_name(), "div", "Should have a div local name");
+    assert_eq!(element.tag_name(), "DIV", "Should be a div tag");
+    assert!(!element.has_attribute("id"), "Shouldn't have an id");
+    element.set_id("beep");
+    assert_eq!(element.id(), "beep", "Should have an id of 'beep'");
+
+    // must_use is set on this result?
+    assert_eq!(
+        element.set_attribute("id", "beep").unwrap(),
+        (),
+        "Should set id"
+    );
+    assert!(element.has_attribute("id"), "Should now have an id");
+    assert_eq!(
+        element.remove_attribute("id").unwrap(),
+        (),
+        "Should return nothing if removed"
+    );
+
+    assert_eq!(element.class_name(), "", "Shouldn't have a class name");
+    element.set_class_name("test thing");
+    assert_eq!(
+        element.class_name(),
+        "test thing",
+        "Should have a class name"
+    );
+    assert_eq!(
+        element.get_attribute("class").unwrap(),
+        "test thing",
+        "Should have a class name"
+    );
+    assert_eq!(
+        element.remove_attribute("class").unwrap(),
+        (),
+        "Should return nothing if removed"
+    );
+    /* Tests needed for:
+    get_attribute_ns
+    */
+
+    /*TODO should we enable toggle_attribute tests? (Firefox Nightly + Chrome canary only)
+        // TODO toggle_attribute should permit a single argument when optional arguments are supported
+        assert!(!element.has_attribute("disabled"), "Should not be disabled");
+        assert!(element.toggle_attribute("disabled", true).unwrap(), "Should return true when attribute is set");
+        assert!(element.has_attribute("disabled"), "Should be disabled");
+        assert!(!element.toggle_attribute("disabled", false).unwrap(), "Should return false when attribute is not set");
+        assert!(!element.has_attribute("disabled"), "Should not be disabled");
+    */
+
+    assert!(!element.has_attribute("title"), "Should not have a title");
+    assert_eq!(
+        element.set_attribute("title", "boop").unwrap(),
+        (),
+        "Should return nothing if set correctly"
+    );
+    assert!(element.has_attribute("title"), "Should have a title");
+    // TODO check get_attribute here when supported
+    assert_eq!(
+        element.remove_attribute("title").unwrap(),
+        (),
+        "Should return nothing if removed"
+    );
+    assert!(!element.has_attribute("title"), "Should not have a title");
+    /* Tests needed for:
+    set_attribute_ns
+    */
+
+    assert!(!element.has_attributes(), "Should not have any attributes");
+    assert_eq!(
+        element.set_attribute("title", "boop").unwrap(),
+        (),
+        "Should return nothing if set correctly"
+    );
+    assert!(element.has_attributes(), "Should have attributes");
+    assert_eq!(
+        element.remove_attribute("title").unwrap(),
+        (),
+        "Should return nothing if removed"
+    );
+    /* Tests needed for:
+    remove_attribute_ns
+    has_attribure_ns
+    closest
+    */
+
+    assert_eq!(
+        element.matches(".this-is-a-thing").unwrap(),
+        false,
+        "Should not match selector"
+    );
+    assert_eq!(
+        element.webkit_matches_selector(".this-is-a-thing").unwrap(),
+        false,
+        "Should not match selector"
+    );
+    element.set_class_name("this-is-a-thing");
+    assert_eq!(
+        element.matches(".this-is-a-thing").unwrap(),
+        true,
+        "Should match selector"
+    );
+    assert_eq!(
+        element.webkit_matches_selector(".this-is-a-thing").unwrap(),
+        true,
+        "Should match selector"
+    );
+    assert_eq!(
+        element.remove_attribute("class").unwrap(),
+        (),
+        "Should return nothing if removed"
+    );
+
+    // TODO non standard moz_matches_selector should we even support?
+
+    /* Tests needed for:
+    insert_adjacent_element
+    insert_adjacent_text
+    set_pointer_capture
+    release_pointer_capture
+    has_pointer_capture
+    set_capture
+    release_capture
+    scroll_top
+    set_scroll_top
+    scroll_left
+    set_scroll_left
+    scroll_width
+    scroll_height
+    scroll,
+    scroll_to
+    scroll_by
+    client_top
+    client_left
+    client_width
+    client_height
+    scroll_top_max
+    scroll_left_max
+    */
+    assert_eq!(element.inner_html(), "", "Should return no content");
+    element.set_inner_html("<strong>Hey!</strong><em>Web!</em>");
+    assert_eq!(
+        element.inner_html(),
+        "<strong>Hey!</strong><em>Web!</em>",
+        "Should return HTML conent"
+    );
+    assert_eq!(
+        element.query_selector_all("strong").unwrap().length(),
+        1,
+        "Should return one element"
+    );
+    assert!(
+        element.query_selector("strong").unwrap().is_some(),
+        "Should return an element"
+    );
+    element.set_inner_html("");
+    assert_eq!(element.inner_html(), "", "Should return no content");
+
+    /* Tests needed for:
+    outer_html
+    set_outer_html
+    insert_adjacent_html
+    */
+
+    assert!(
+        element.query_selector(".none-existant").unwrap().is_none(),
+        "Should return no results"
+    );
+    assert_eq!(
+        element
+            .query_selector_all(".none-existant")
+            .unwrap()
+            .length(),
+        0,
+        "Should return no results"
+    );
+    /* Tests needed for:
+      slot
+      set_slot
+      request_fullscreen
+      request_pointer_lock
+    */
+
+    let child = new_div();
+    assert_eq!(
+        element.get_elements_by_tag_name("div").length(),
+        0,
+        "Element should not contain any div child"
+    );
+    element.append_child(&child).unwrap();
+    assert_eq!(
+        element.get_elements_by_tag_name("div").length(),
+        1,
+        "Element should contain one div child"
+    );
+    assert_eq!(
+        element.get_elements_by_class_name("foo").length(),
+        0,
+        "Element should not have childs with class foo"
+    );
+    child.class_list().add_1("foo").unwrap();
+    assert_eq!(
+        element.get_elements_by_class_name("foo").length(),
+        1,
+        "Element should have one child with class foo"
+    );
+    element.remove_child(&child).unwrap();
+}
diff --git a/vendor/web-sys/tests/wasm/event.js b/vendor/web-sys/tests/wasm/event.js
new file mode 100644
index 000000000..48203ecf8
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/event.js
@@ -0,0 +1,10 @@
+export function new_event() {
+  return new Promise(resolve => {
+    window.addEventListener("test-event", resolve);
+    window.dispatchEvent(new Event("test-event", {
+      bubbles: true,
+      cancelable: true,
+      composed: true,
+    }));
+  });
+}
diff --git a/vendor/web-sys/tests/wasm/event.rs b/vendor/web-sys/tests/wasm/event.rs
new file mode 100644
index 000000000..4ffb48f16
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/event.rs
@@ -0,0 +1,30 @@
+use js_sys::{Object, Promise};
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::JsFuture;
+use wasm_bindgen_test::*;
+use web_sys::Event;
+
+#[wasm_bindgen(module = "/tests/wasm/event.js")]
+extern "C" {
+    fn new_event() -> Promise;
+}
+
+#[wasm_bindgen_test]
+async fn event() {
+    let result = JsFuture::from(new_event()).await.unwrap();
+    let event = Event::from(result);
+    // All DOM interfaces should inherit from `Object`.
+    assert!(event.is_instance_of::<Object>());
+    let _: &Object = event.as_ref();
+
+    // These should match `new Event`.
+    assert!(event.bubbles());
+    assert!(event.cancelable());
+    assert!(event.composed());
+
+    // The default behavior not initially prevented, but after
+    // we call `prevent_default` it better be.
+    assert!(!event.default_prevented());
+    event.prevent_default();
+    assert!(event.default_prevented());
+}
diff --git a/vendor/web-sys/tests/wasm/head_element.rs b/vendor/web-sys/tests/wasm/head_element.rs
new file mode 100644
index 000000000..4b8273357
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/head_element.rs
@@ -0,0 +1,14 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlHeadElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_head() -> HtmlHeadElement;
+}
+
+#[wasm_bindgen_test]
+fn test_head_element() {
+    let _element = new_head();
+    assert!(true, "Head doesn't have an interface");
+}
diff --git a/vendor/web-sys/tests/wasm/headers.js b/vendor/web-sys/tests/wasm/headers.js
new file mode 100644
index 000000000..3b71cdc66
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/headers.js
@@ -0,0 +1,3 @@
+export function new_headers() {
+  return new Headers({'Content-Type': 'text/plain'});
+}
diff --git a/vendor/web-sys/tests/wasm/headers.rs b/vendor/web-sys/tests/wasm/headers.rs
new file mode 100644
index 000000000..08751444b
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/headers.rs
@@ -0,0 +1,31 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::Headers;
+
+#[wasm_bindgen(module = "/tests/wasm/headers.js")]
+extern "C" {
+    fn new_headers() -> Headers;
+}
+
+#[wasm_bindgen_test]
+fn headers() {
+    let headers = new_headers();
+    assert_eq!(headers.get("foo").unwrap(), None);
+    assert_eq!(
+        headers.get("content-type").unwrap(),
+        Some("text/plain".to_string()),
+    );
+    assert_eq!(
+        headers.get("Content-Type").unwrap(),
+        Some("text/plain".to_string()),
+    );
+    assert!(headers.get("").is_err());
+    assert!(headers.set("", "").is_err());
+    assert!(headers.set("x", "").is_ok());
+    assert_eq!(headers.get("x").unwrap(), Some(String::new()));
+    assert!(headers.delete("x").is_ok());
+    assert_eq!(headers.get("x").unwrap(), None);
+    assert!(headers.append("a", "y").is_ok());
+    assert!(headers.append("a", "z").is_ok());
+    assert_eq!(headers.get("a").unwrap(), Some("y, z".to_string()));
+}
diff --git a/vendor/web-sys/tests/wasm/heading_element.rs b/vendor/web-sys/tests/wasm/heading_element.rs
new file mode 100644
index 000000000..47a2fc0a3
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/heading_element.rs
@@ -0,0 +1,16 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlHeadingElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_heading() -> HtmlHeadingElement;
+}
+
+#[wasm_bindgen_test]
+fn heading_element() {
+    let element = new_heading();
+    assert_eq!(element.align(), "", "Shouldn't have an align");
+    element.set_align("justify");
+    assert_eq!(element.align(), "justify", "Should have an align");
+}
diff --git a/vendor/web-sys/tests/wasm/history.rs b/vendor/web-sys/tests/wasm/history.rs
new file mode 100644
index 000000000..f3ecdc42e
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/history.rs
@@ -0,0 +1,28 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::{History, ScrollRestoration};
+
+#[wasm_bindgen]
+extern "C" {
+    #[wasm_bindgen(js_name = history, js_namespace = window)]
+    static HISTORY: History;
+}
+
+#[wasm_bindgen_test]
+fn history() {
+    HISTORY
+        .set_scroll_restoration(ScrollRestoration::Manual)
+        .expect("failure to set scroll restoration");
+    assert_eq!(
+        HISTORY.scroll_restoration().unwrap(),
+        ScrollRestoration::Manual
+    );
+
+    HISTORY
+        .set_scroll_restoration(ScrollRestoration::Auto)
+        .expect("failure to set scroll restoration");
+    assert_eq!(
+        HISTORY.scroll_restoration().unwrap(),
+        ScrollRestoration::Auto
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/hr_element.rs b/vendor/web-sys/tests/wasm/hr_element.rs
new file mode 100644
index 000000000..fe63c1404
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/hr_element.rs
@@ -0,0 +1,24 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlHrElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_hr() -> HtmlHrElement;
+}
+
+#[wasm_bindgen_test]
+fn test_hr_element() {
+    let hr = new_hr();
+    hr.set_color("blue");
+    assert_eq!(hr.color(), "blue");
+
+    hr.set_width("128");
+    assert_eq!(hr.width(), "128");
+
+    hr.set_width("256");
+    assert_eq!(hr.width(), "256");
+
+    hr.set_no_shade(true);
+    assert_eq!(hr.no_shade(), true);
+}
diff --git a/vendor/web-sys/tests/wasm/html_element.rs b/vendor/web-sys/tests/wasm/html_element.rs
new file mode 100644
index 000000000..73157ceee
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/html_element.rs
@@ -0,0 +1,160 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_html() -> HtmlElement;
+}
+
+#[wasm_bindgen_test]
+fn test_html_element() {
+    let element = new_html();
+    assert!(element.is_instance_of::<HtmlElement>());
+
+    assert_eq!(element.title(), "", "Shouldn't have a title");
+    element.set_title("boop");
+    assert_eq!(element.title(), "boop", "Should have a title");
+
+    assert_eq!(element.lang(), "", "Shouldn't have a lang");
+    element.set_lang("en-us");
+    assert_eq!(element.lang(), "en-us", "Should have a lang");
+
+    assert_eq!(element.dir(), "", "Shouldn't have a dir");
+    element.set_dir("ltr");
+    assert_eq!(element.dir(), "ltr", "Should have a dir");
+
+    assert_eq!(element.inner_text(), "", "Shouldn't have inner_text");
+    element.set_inner_text("hey");
+    assert_eq!(element.inner_text(), "hey", "Should have inner_text");
+
+    assert!(!element.hidden(), "Shouldn't be hidden");
+    element.set_hidden(true);
+    assert!(element.hidden(), "Should be hidden");
+
+    assert_eq!(
+        element.class_list().get(0),
+        None,
+        "Shouldn't have class at index 0"
+    );
+    element.class_list().add_2("a", "b").unwrap();
+    assert_eq!(
+        element.class_list().get(0).unwrap(),
+        "a",
+        "Should have class at index 0"
+    );
+    assert_eq!(
+        element.class_list().get(1).unwrap(),
+        "b",
+        "Should have class at index 1"
+    );
+    assert_eq!(
+        element.class_list().get(2),
+        None,
+        "Shouldn't have class at index 2"
+    );
+
+    assert_eq!(element.dataset().get("id"), None, "Shouldn't have data-id");
+    element.dataset().set("id", "123").unwrap();
+    assert_eq!(
+        element.dataset().get("id").unwrap(),
+        "123",
+        "Should have data-id"
+    );
+
+    assert_eq!(
+        element.style().get(0),
+        None,
+        "Shouldn't have style property name at index 0"
+    );
+    element
+        .style()
+        .set_property("background-color", "red")
+        .unwrap();
+    assert_eq!(
+        element.style().get(0).unwrap(),
+        "background-color",
+        "Should have style property at index 0"
+    );
+    assert_eq!(
+        element
+            .style()
+            .get_property_value("background-color")
+            .unwrap(),
+        "red",
+        "Should have style property"
+    );
+
+    // TODO add a click handler here
+    element.click();
+
+    assert_eq!(element.tab_index(), -1, "Shouldn't be tab_index");
+    element.set_tab_index(1);
+    assert_eq!(element.tab_index(), 1, "Should be tab_index");
+
+    // TODO add a focus handler here
+    assert_eq!(element.focus().unwrap(), (), "No result");
+
+    // TODO add a blur handler here
+    assert_eq!(element.blur().unwrap(), (), "No result");
+
+    assert_eq!(element.access_key(), "", "Shouldn't have a access_key");
+    element.set_access_key("a");
+    assert_eq!(element.access_key(), "a", "Should have a access_key");
+
+    // TODO add test for access_key_label
+
+    assert!(!element.draggable(), "Shouldn't be draggable");
+    element.set_draggable(true);
+    assert!(element.draggable(), "Should be draggable");
+
+    assert_eq!(
+        element.content_editable(),
+        "inherit",
+        "Shouldn't have a content_editable"
+    );
+    element.set_content_editable("true");
+    assert_eq!(
+        element.content_editable(),
+        "true",
+        "Should be content_editable"
+    );
+    assert!(element.is_content_editable(), "Should be content_editable");
+
+    /*TODO doesn't work in Chrome
+        // TODO verify case where menu is passed
+        match element.context_menu() {
+            None => assert!(true, "Shouldn't have a custom menu set"),
+            _ => assert!(false, "Shouldn't have a custom menu set")
+        };
+    */
+
+    // TODO: This test is also broken in Chrome (but not Firefox).
+    // assert!(!element.spellcheck(), "Shouldn't be spellchecked");
+    element.set_spellcheck(true);
+    assert!(element.spellcheck(), "Should be dragspellcheckedgable");
+
+    // TODO verify case where we have an offset_parent
+    match element.offset_parent() {
+        None => assert!(true, "Shouldn't have an offset_parent set"),
+        _ => assert!(false, "Shouldn't have a offset_parent set"),
+    };
+
+    // TODO verify when we have offsets
+    assert_eq!(element.offset_top(), 0, "Shouldn't have an offset_top yet");
+    assert_eq!(
+        element.offset_left(),
+        0,
+        "Shouldn't have an offset_left yet"
+    );
+    assert_eq!(
+        element.offset_width(),
+        0,
+        "Shouldn't have an offset_width yet"
+    );
+    assert_eq!(
+        element.offset_height(),
+        0,
+        "Shouldn't have an offset_height yet"
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/html_html_element.rs b/vendor/web-sys/tests/wasm/html_html_element.rs
new file mode 100644
index 000000000..ddfae4c12
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/html_html_element.rs
@@ -0,0 +1,16 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlHtmlElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_html() -> HtmlHtmlElement;
+}
+
+#[wasm_bindgen_test]
+fn test_html_html_element() {
+    let element = new_html();
+    assert_eq!(element.version(), "", "Shouldn't have a version");
+    element.set_version("4");
+    assert_eq!(element.version(), "4", "Should have a version");
+}
diff --git a/vendor/web-sys/tests/wasm/image_data.rs b/vendor/web-sys/tests/wasm/image_data.rs
new file mode 100644
index 000000000..0689425fe
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/image_data.rs
@@ -0,0 +1,18 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen::Clamped;
+use wasm_bindgen_test::*;
+use web_sys::HtmlAnchorElement;
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_a() -> HtmlAnchorElement;
+}
+
+#[wasm_bindgen_test]
+fn test_anchor_element() {
+    // This test is to make sure there is no weird mutability going on.
+    let buf = vec![1, 2, 3, 255];
+    let image_data = web_sys::ImageData::new_with_u8_clamped_array(Clamped(&buf), 1).unwrap();
+    let mut data = image_data.data();
+    data[1] = 4;
+    assert_eq!(buf[1], 2);
+}
diff --git a/vendor/web-sys/tests/wasm/indexeddb.rs b/vendor/web-sys/tests/wasm/indexeddb.rs
new file mode 100644
index 000000000..cfaa2ea43
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/indexeddb.rs
@@ -0,0 +1,7 @@
+use wasm_bindgen_test::*;
+
+#[wasm_bindgen_test]
+fn accessor_works() {
+    let window = web_sys::window().unwrap();
+    assert!(window.indexed_db().unwrap().is_some());
+}
diff --git a/vendor/web-sys/tests/wasm/input_element.rs b/vendor/web-sys/tests/wasm/input_element.rs
new file mode 100644
index 000000000..460576328
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/input_element.rs
@@ -0,0 +1,217 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlInputElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_input() -> HtmlInputElement;
+}
+
+#[wasm_bindgen_test]
+fn test_input_element() {
+    let element = new_input();
+    let location = web_sys::window().unwrap().location().href().unwrap();
+    assert_eq!(element.accept(), "", "Shouldn't have an accept");
+    element.set_accept("audio/*");
+    assert_eq!(element.accept(), "audio/*", "Should have an accept");
+
+    assert_eq!(element.alt(), "", "Shouldn't have an alt");
+    element.set_alt("alt text");
+    assert_eq!(element.alt(), "alt text", "Should have an alt");
+
+    element.set_type("text");
+    assert_eq!(element.autocomplete(), "", "Shouldn't have an autocomplete");
+    element.set_autocomplete("on");
+    assert_eq!(
+        element.autocomplete(),
+        "on",
+        "Shouldn't have an autocomplete"
+    );
+
+    assert!(!element.autofocus(), "Shouldn't have an autofocus");
+    element.set_autofocus(true);
+    assert!(element.autofocus(), "Should have an autofocus");
+
+    element.set_type("checkbox");
+    assert!(
+        !element.default_checked(),
+        "Shouldn't have an default_checked"
+    );
+    element.set_default_checked(true);
+    assert!(element.default_checked(), "Should have an default_checked");
+
+    /*TODO fix
+        assert!(!element.checked(), "Shouldn't be checked");
+        element.set_checked(true);
+        assert!(element.checked(), "Should be checked");
+    */
+
+    assert!(!element.disabled(), "Shouldn't be disabled");
+    element.set_disabled(true);
+    assert!(element.disabled(), "Should be disabled");
+
+    match element.form() {
+        None => assert!(true, "Shouldn't have a form"),
+        _ => assert!(false, "Shouldn't have a form"),
+    };
+
+    assert_eq!(
+        element.form_action(),
+        location,
+        "Should have the pages location"
+    );
+    element.set_form_action("http://boop.com/");
+    assert_eq!(
+        element.form_action(),
+        "http://boop.com/",
+        "Should have a form_action"
+    );
+
+    assert_eq!(element.form_enctype(), "", "Should have no enctype");
+    element.set_form_enctype("text/plain");
+    assert_eq!(
+        element.form_enctype(),
+        "text/plain",
+        "Should have a plain text enctype"
+    );
+
+    assert_eq!(element.form_method(), "", "Should have no method");
+    element.set_form_method("POST");
+    assert_eq!(element.form_method(), "post", "Should have a POST method");
+
+    assert!(!element.form_no_validate(), "Should validate");
+    element.set_form_no_validate(true);
+    assert!(element.form_no_validate(), "Should not validate");
+
+    assert_eq!(element.form_target(), "", "Should have no target");
+    element.set_form_target("_blank");
+    assert_eq!(
+        element.form_target(),
+        "_blank",
+        "Should have a _blank target"
+    );
+
+    assert_eq!(element.height(), 0, "Should have no height");
+    element.set_height(12);
+    assert_eq!(element.height(), 0, "Should have no height"); // Doesn't change, TODO check with get_attribute("height")=="12"
+
+    /*TODO fails in chrome
+    element.set_type("checkbox");
+    assert!(element.indeterminate(), "Should be indeterminate");
+    element.set_checked(true);
+    assert!(!element.indeterminate(), "Shouldn't be indeterminate");
+    */
+    /*TODO add tests
+    pub fn indeterminate(&self) -> bool
+    pub fn set_indeterminate(&self, indeterminate: bool)
+    pub fn input_mode(&self) -> String
+    pub fn set_input_mode(&self, input_mode: &str)
+    pub fn list(&self) -> Option<HtmlElement>
+    pub fn max(&self) -> String
+    pub fn set_max(&self, max: &str)
+    pub fn max_length(&self) -> i32
+    pub fn set_max_length(&self, max_length: i32)
+    pub fn min(&self) -> String
+    pub fn set_min(&self, min: &str)
+    pub fn min_length(&self) -> i32
+    pub fn set_min_length(&self, min_length: i32)
+    pub fn multiple(&self) -> bool
+    pub fn set_multiple(&self, multiple: bool)
+    */
+    assert_eq!(element.name(), "", "Should not have a name");
+    element.set_name("namey");
+    assert_eq!(element.name(), "namey", "Should have a name");
+    /*TODO add tests
+    pub fn pattern(&self) -> String
+    pub fn set_pattern(&self, pattern: &str)
+    */
+    assert_eq!(element.placeholder(), "", "Should not have a placeholder");
+    element.set_placeholder("some text");
+    assert_eq!(
+        element.placeholder(),
+        "some text",
+        "Should have a placeholder"
+    );
+
+    assert!(!element.read_only(), "Should have not be readonly");
+    element.set_read_only(true);
+    assert!(element.read_only(), "Should be readonly");
+
+    assert!(!element.required(), "Should have not be required");
+    element.set_required(true);
+    assert!(element.required(), "Should be required");
+    /*TODO add tests
+    pub fn size(&self) -> u32
+    pub fn set_size(&self, size: u32)
+    */
+    /*TODO fails in chrome
+        element.set_type("image");
+        assert_eq!(element.src(), "", "Should have no src");
+        element.set_value("hey.png");
+        assert_eq!(element.src(), "hey.png", "Should have a src");
+    */
+    /*TODO add tests
+    pub fn src(&self) -> String
+    pub fn set_src(&self, src: &str)
+    pub fn step(&self) -> String
+    pub fn set_step(&self, step: &str)
+    pub fn type_(&self) -> String
+    pub fn set_type(&self, type_: &str)
+    pub fn default_value(&self) -> String
+    pub fn set_default_value(&self, default_value: &str)
+    */
+    /*TODO fails in chrome
+        assert_eq!(element.value(), "", "Should have no value");
+        element.set_value("hey!");
+        assert_eq!(element.value(), "hey!", "Should have a value");
+    */
+    element.set_type("number");
+    element.set_value("1");
+    assert_eq!(element.value_as_number(), 1.0, "Should have value 1");
+    element.set_value_as_number(2.0);
+    assert_eq!(element.value(), "2", "Should have value 2");
+
+    assert_eq!(element.width(), 0, "Should have no width");
+    element.set_width(12);
+    assert_eq!(element.width(), 0, "Should have no width"); // Doesn't change, TODO check with get_attribute("width")=="12"
+
+    assert_eq!(element.will_validate(), false, "Shouldn't validate");
+    assert_eq!(
+        element.validation_message().unwrap(),
+        "",
+        "Shouldn't have a value"
+    );
+    assert_eq!(element.check_validity(), true, "Should be valid");
+    assert_eq!(element.report_validity(), true, "Should be valid");
+    element.set_custom_validity("Boop"); // Method exists but doesn't impact validity ?!??! TODO look into
+    assert_eq!(element.check_validity(), true, "Should be valid");
+    assert_eq!(element.report_validity(), true, "Should be valid");
+    /*TODO add tests
+    pub fn labels(&self) -> Option<NodeList>
+    pub fn select(&self)
+    pub fn selection_direction(&self) -> Result<Option<String>, JsValue>
+    pub fn set_selection_direction(
+        &self,
+        selection_direction: Option<&str>
+    ) -> Result<(), JsValue>
+    pub fn set_range_text(&self, replacement: &str) -> Result<(), JsValue>
+    pub fn set_selection_range(
+        &self,
+        start: u32,
+        end: u32,
+        direction: &str
+    ) -> Result<(), JsValue>
+    */
+
+    assert_eq!(element.align(), "", "Should have no align");
+    element.set_align("left");
+    assert_eq!(element.align(), "left", "Should have an align");
+    /*TODO add tests
+    pub fn use_map(&self) -> String
+    pub fn set_use_map(&self, use_map: &str)
+    pub fn text_length(&self) -> i32
+    pub fn webkitdirectory(&self) -> bool
+    pub fn set_webkitdirectory(&self, webkitdirectory: bool)
+    pub fn set_focus_state(&self, a_is_focused: bool)
+    */
+}
diff --git a/vendor/web-sys/tests/wasm/location.rs b/vendor/web-sys/tests/wasm/location.rs
new file mode 100644
index 000000000..aa41d0d5a
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/location.rs
@@ -0,0 +1,60 @@
+use wasm_bindgen_test::*;
+use web_sys::{self, Location};
+
+fn location() -> Location {
+    web_sys::window().unwrap().location()
+}
+
+#[wasm_bindgen_test]
+fn href() {
+    let loc = location();
+    loc.href().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn origin() {
+    let loc = location();
+    loc.origin().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn protocol() {
+    let loc = location();
+    loc.protocol().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn host() {
+    let loc = location();
+    loc.host().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn hostname() {
+    let loc = location();
+    loc.hostname().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn port() {
+    let loc = location();
+    loc.port().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn pathname() {
+    let loc = location();
+    loc.pathname().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn search() {
+    let loc = location();
+    loc.search().unwrap();
+}
+
+#[wasm_bindgen_test]
+fn hash() {
+    let loc = location();
+    loc.hash().unwrap();
+}
diff --git a/vendor/web-sys/tests/wasm/main.rs b/vendor/web-sys/tests/wasm/main.rs
new file mode 100644
index 000000000..f78f773a9
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/main.rs
@@ -0,0 +1,65 @@
+#![cfg(target_arch = "wasm32")]
+
+use wasm_bindgen_test::*;
+
+wasm_bindgen_test_configure!(run_in_browser);
+
+pub mod anchor_element;
+pub mod blob;
+pub mod body_element;
+pub mod br_element;
+pub mod button_element;
+pub mod console;
+pub mod div_element;
+pub mod element;
+pub mod event;
+pub mod head_element;
+pub mod headers;
+pub mod heading_element;
+pub mod history;
+pub mod hr_element;
+pub mod html_element;
+pub mod html_html_element;
+pub mod image_data;
+pub mod input_element;
+//TODO: Both menu-related tests completely break in Chrome, but run fine in Firefox.
+//pub mod menu_element;
+//pub mod menu_item_element;
+pub mod dom_point;
+pub mod indexeddb;
+pub mod location;
+pub mod meta_element;
+pub mod meter_element;
+pub mod mod_elements;
+pub mod olist_element;
+pub mod optgroup_element;
+pub mod option_element;
+pub mod options_collection;
+pub mod output_element;
+pub mod paragraph_element;
+pub mod param_element;
+pub mod performance;
+pub mod pre_element;
+pub mod progress_element;
+pub mod quote_element;
+pub mod response;
+pub mod rtc_rtp_transceiver_direction;
+pub mod script_element;
+pub mod select_element;
+pub mod slot_element;
+pub mod span_element;
+pub mod style_element;
+pub mod table_element;
+pub mod title_element;
+pub mod whitelisted_immutable_slices;
+pub mod xpath_result;
+
+#[wasm_bindgen_test]
+fn deref_works() {
+    fn _check(a: &web_sys::XmlHttpRequestUpload) {
+        let _x: &web_sys::XmlHttpRequestEventTarget = a;
+        let _x: &web_sys::EventTarget = a;
+        let _x: &js_sys::Object = a;
+        let _x: &wasm_bindgen::JsValue = a;
+    }
+}
diff --git a/vendor/web-sys/tests/wasm/menu_element.rs b/vendor/web-sys/tests/wasm/menu_element.rs
new file mode 100644
index 000000000..92456133f
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/menu_element.rs
@@ -0,0 +1,25 @@
+use wasm_bindgen_test::*;
+use wasm_bindgen::prelude::*;
+use web_sys::HtmlMenuElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_menu() -> HtmlMenuElement;
+}
+
+#[wasm_bindgen_test]
+fn test_menu_element() {
+    let menu = new_menu();
+
+    menu.set_type("toolbar");
+    assert_eq!(menu.type_(), "toolbar", "Menu should have the type value we gave it.");
+
+    menu.set_label("Menu label here");
+    assert_eq!(menu.label(), "Menu label here", "Menu should have the label value we gave it.");
+
+    menu.set_compact(true);
+    assert_eq!(menu.compact(), true, "Menu should be compact after we set it to be compact.");
+
+    menu.set_compact(false);
+    assert_eq!(menu.compact(), false, "Menu should not be compact after we set it to be not-compact.");
+}
diff --git a/vendor/web-sys/tests/wasm/menu_item_element.rs b/vendor/web-sys/tests/wasm/menu_item_element.rs
new file mode 100644
index 000000000..6b6eaaffb
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/menu_item_element.rs
@@ -0,0 +1,43 @@
+use wasm_bindgen_test::*;
+use wasm_bindgen::prelude::*;
+use web_sys::HtmlMenuItemElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_menuitem() -> HtmlMenuItemElement;
+}
+
+#[wasm_bindgen_test]
+fn test_menuitem_element() {
+    let menuitem = new_menuitem();
+
+    menuitem.set_type("radio");
+    assert_eq!(menuitem.type_(), "radio", "Menu item should have the type value we gave it.");
+
+    menuitem.set_label("Menu item label here");
+    assert_eq!(menuitem.label(), "Menu item label here", "Menu item should have the label value we gave it.");
+
+    menuitem.set_icon("https://en.wikipedia.org/wiki/Rust_(programming_language)#/media/File:Rust_programming_language_black_logo.svg");
+    assert_eq!(menuitem.icon(), "https://en.wikipedia.org/wiki/Rust_(programming_language)#/media/File:Rust_programming_language_black_logo.svg", "Menu item should have the icon value we gave it.");
+
+    menuitem.set_disabled(true);
+    assert_eq!(menuitem.disabled(), true, "Menu item should be disabled after we set it to be disabled.");
+
+    menuitem.set_disabled(false);
+    assert_eq!(menuitem.disabled(), false, "Menu item should not be disabled after we set it to be not-disabled.");
+
+    menuitem.set_checked(true);
+    assert_eq!(menuitem.checked(), true, "Menu item should be checked after we set it to be checked.");
+
+    menuitem.set_checked(false);
+    assert_eq!(menuitem.checked(), false, "Menu item should not be checked after we set it to be not-checked.");
+
+    menuitem.set_radiogroup("Radio group name");
+    assert_eq!(menuitem.radiogroup(), "Radio group name", "Menu item should have the radiogroup value we gave it.");
+
+    menuitem.set_default_checked(true);
+    assert_eq!(menuitem.default_checked(), true, "Menu item should be default_checked after we set it to be default_checked.");
+
+    menuitem.set_default_checked(false);
+    assert_eq!(menuitem.default_checked(), false, "Menu item should not be default_checked after we set it to be not default_checked.");
+}
diff --git a/vendor/web-sys/tests/wasm/meta_element.rs b/vendor/web-sys/tests/wasm/meta_element.rs
new file mode 100644
index 000000000..697316cb8
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/meta_element.rs
@@ -0,0 +1,41 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlMetaElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_meta() -> HtmlMetaElement;
+}
+
+#[wasm_bindgen_test]
+fn test_meter_element() {
+    let meta = new_meta();
+
+    meta.set_name("keywords");
+    assert_eq!(
+        meta.name(),
+        "keywords",
+        "Meta should have the name value we gave it."
+    );
+
+    meta.set_http_equiv("content-type");
+    assert_eq!(
+        meta.http_equiv(),
+        "content-type",
+        "Meta should have the http_equiv value we gave it."
+    );
+
+    meta.set_content("HTML, CSS, XML, JavaScript");
+    assert_eq!(
+        meta.content(),
+        "HTML, CSS, XML, JavaScript",
+        "Meta should have the content value we gave it."
+    );
+
+    meta.set_scheme("text");
+    assert_eq!(
+        meta.scheme(),
+        "text",
+        "Meta should have the scheme value we gave it."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/meter_element.rs b/vendor/web-sys/tests/wasm/meter_element.rs
new file mode 100644
index 000000000..7bff14d98
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/meter_element.rs
@@ -0,0 +1,56 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlMeterElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_meter() -> HtmlMeterElement;
+}
+
+#[wasm_bindgen_test]
+fn test_meter_element() {
+    let meter = new_meter();
+
+    meter.set_min(-5.);
+    assert_eq!(
+        meter.min(),
+        -5.,
+        "Meter should have the min value we gave it."
+    );
+
+    meter.set_max(5.);
+    assert_eq!(
+        meter.max(),
+        5.,
+        "Meter should have the max value we gave it."
+    );
+
+    meter.set_value(2.);
+    assert_eq!(meter.value(), 2., "Meter should have the value we gave it.");
+
+    meter.set_low(-1.);
+    assert_eq!(
+        meter.low(),
+        -1.,
+        "Meter should have the low value we gave it."
+    );
+
+    meter.set_high(1.);
+    assert_eq!(
+        meter.high(),
+        1.,
+        "Meter should have the high value we gave it."
+    );
+
+    meter.set_optimum(3.);
+    assert_eq!(
+        meter.optimum(),
+        3.,
+        "Meter should have the optimum value we gave it."
+    );
+
+    assert!(
+        meter.labels().length() == 0,
+        "Our meter shouldn't have any labels associated with it."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/mod_elements.rs b/vendor/web-sys/tests/wasm/mod_elements.rs
new file mode 100644
index 000000000..c8b0db881
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/mod_elements.rs
@@ -0,0 +1,44 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlModElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_del() -> HtmlModElement;
+    fn new_ins() -> HtmlModElement;
+}
+
+#[wasm_bindgen_test]
+fn test_mod_elements() {
+    let del = new_del();
+
+    del.set_cite("https://www.rust-lang.org/en-US/");
+    assert_eq!(
+        del.cite(),
+        "https://www.rust-lang.org/en-US/",
+        "Option should have the cite URI we gave it."
+    );
+
+    del.set_date_time("Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)");
+    assert_eq!(
+        del.date_time(),
+        "Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)",
+        "Option should have the date_time we gave it."
+    );
+
+    let ins = new_ins();
+
+    ins.set_cite("https://www.rust-lang.org/en-US/");
+    assert_eq!(
+        ins.cite(),
+        "https://www.rust-lang.org/en-US/",
+        "Option should have the cite URI we gave it."
+    );
+
+    ins.set_date_time("Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)");
+    assert_eq!(
+        ins.date_time(),
+        "Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)",
+        "Option should have the date_time we gave it."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/olist_element.rs b/vendor/web-sys/tests/wasm/olist_element.rs
new file mode 100644
index 000000000..56785c0e7
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/olist_element.rs
@@ -0,0 +1,62 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlOListElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_olist() -> HtmlOListElement;
+}
+
+#[wasm_bindgen_test]
+fn test_olist_element() {
+    let olist = new_olist();
+
+    olist.set_reversed(true);
+    assert_eq!(
+        olist.reversed(),
+        true,
+        "Olist should be reversed after we set it to be reversed."
+    );
+
+    olist.set_reversed(false);
+    assert_eq!(
+        olist.reversed(),
+        false,
+        "Olist should not be reversed after we set it to be not reversed."
+    );
+
+    olist.set_start(23);
+    assert_eq!(
+        olist.start(),
+        23,
+        "Olist should have the start value we gave it."
+    );
+
+    olist.set_type("A");
+    assert_eq!(
+        olist.type_(),
+        "A",
+        "Olist should be type 'A' after we set it to be type 'A'."
+    );
+
+    olist.set_type("I");
+    assert_eq!(
+        olist.type_(),
+        "I",
+        "Olist should be type 'I' after we set it to be type 'I'."
+    );
+
+    olist.set_compact(true);
+    assert_eq!(
+        olist.compact(),
+        true,
+        "Olist should be compact after we set it to be compact."
+    );
+
+    olist.set_compact(false);
+    assert_eq!(
+        olist.compact(),
+        false,
+        "Olist should not be compact after we set it to be not compact."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/optgroup_element.rs b/vendor/web-sys/tests/wasm/optgroup_element.rs
new file mode 100644
index 000000000..99d72dada
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/optgroup_element.rs
@@ -0,0 +1,34 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlOptGroupElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_optgroup() -> HtmlOptGroupElement;
+}
+
+#[wasm_bindgen_test]
+fn test_optgroup_element() {
+    let optgroup = new_optgroup();
+
+    optgroup.set_disabled(true);
+    assert_eq!(
+        optgroup.disabled(),
+        true,
+        "Optgroup should be disabled after we set it to be disabled."
+    );
+
+    optgroup.set_disabled(false);
+    assert_eq!(
+        optgroup.disabled(),
+        false,
+        "Optgroup should not be disabled after we set it to be not-disabled."
+    );
+
+    optgroup.set_label("Group of options below");
+    assert_eq!(
+        optgroup.label(),
+        "Group of options below",
+        "Optgroup should have the label we gave it."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/option_element.rs b/vendor/web-sys/tests/wasm/option_element.rs
new file mode 100644
index 000000000..10661b29b
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/option_element.rs
@@ -0,0 +1,87 @@
+use wasm_bindgen_test::*;
+use web_sys::HtmlOptionElement;
+
+#[wasm_bindgen_test]
+fn test_option_element() {
+    let option = HtmlOptionElement::new_with_text_and_value_and_default_selected_and_selected(
+        "option_text",
+        "option_value",
+        false,
+        true,
+    )
+    .unwrap();
+
+    option.set_disabled(true);
+    assert_eq!(
+        option.disabled(),
+        true,
+        "Option should be disabled after we set it to be disabled."
+    );
+
+    option.set_disabled(false);
+    assert_eq!(
+        option.disabled(),
+        false,
+        "Option should not be disabled after we set it to be not-disabled."
+    );
+
+    assert!(
+        option.form().is_none(),
+        "Our option should not be associated with a form."
+    );
+
+    option.set_label("Well this truly is a neat option");
+    assert_eq!(
+        option.label(),
+        "Well this truly is a neat option",
+        "Option should have the label we gave it."
+    );
+
+    option.set_default_selected(true);
+    assert_eq!(
+        option.default_selected(),
+        true,
+        "Option should be default_selected after we set it to be default_selected."
+    );
+
+    option.set_default_selected(false);
+    assert_eq!(
+        option.default_selected(),
+        false,
+        "Option should not be default_selected after we set it to be not default_selected."
+    );
+
+    option.set_selected(true);
+    assert_eq!(
+        option.selected(),
+        true,
+        "Option should be selected after we set it to be selected."
+    );
+
+    option.set_selected(false);
+    assert_eq!(
+        option.selected(),
+        false,
+        "Option should not be selected after we set it to be not selected."
+    );
+
+    option.set_value("tomato");
+    assert_eq!(
+        option.value(),
+        "tomato",
+        "Option should have the value we gave it."
+    );
+
+    option.set_text("potato");
+    assert_eq!(
+        option.text(),
+        "potato",
+        "Option should have the text we gave it."
+    );
+
+    assert_eq!(
+        option.index(),
+        0,
+        "This should be the first option, since there are no other known options."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/options_collection.rs b/vendor/web-sys/tests/wasm/options_collection.rs
new file mode 100644
index 000000000..6b7e3b3ad
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/options_collection.rs
@@ -0,0 +1,43 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlOptionsCollection;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_food_options_collection() -> HtmlOptionsCollection;
+}
+
+#[wasm_bindgen_test]
+fn test_options_collection() {
+    let opt_collection = new_food_options_collection();
+
+    assert!(
+        opt_collection.length() == 4,
+        "Our option collection should have four options."
+    );
+    assert!(
+        opt_collection.remove(0).is_ok(),
+        "We should be able to successfully remove an element from an option collection."
+    );
+    assert!(
+        opt_collection.length() == 3,
+        "Our option collection should have three options after removing one."
+    );
+
+    assert!(
+        opt_collection.set_selected_index(1).is_ok(),
+        "Should be able to set the selected index of an option collection if it is valid."
+    );
+    assert_eq!(
+        opt_collection.selected_index().unwrap(),
+        1,
+        "The second option should be selected in our option collection."
+    );
+
+    opt_collection.set_length(1234);
+    assert_eq!(
+        opt_collection.length(),
+        1234,
+        "Our option collections length should update after being set to 1234."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/output_element.rs b/vendor/web-sys/tests/wasm/output_element.rs
new file mode 100644
index 000000000..bb25f1824
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/output_element.rs
@@ -0,0 +1,71 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlOutputElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_output() -> HtmlOutputElement;
+}
+
+#[wasm_bindgen_test]
+fn test_output_element() {
+    let output = new_output();
+    assert!(
+        output.html_for().length() == 0,
+        "Our basic <output> should have no html associated with it."
+    );
+    assert!(
+        output.form().is_none(),
+        "Our basic <output> should have no form associated with it."
+    );
+
+    output.set_name("Calculation result");
+    assert_eq!(
+        output.name(),
+        "Calculation result",
+        "Output name should be 'Calculation result'."
+    );
+
+    assert_eq!(
+        output.type_(),
+        "output",
+        "Our basic <output> should have an type of 'output'."
+    );
+
+    output.set_default_value("27");
+    assert_eq!(
+        output.default_value(),
+        "27",
+        "Default output value should be '27'."
+    );
+
+    output.set_value("49");
+    assert_eq!(output.value(), "49", "Output value should be '49'.");
+
+    // TODO: Fails in Chrome, but not in Firefox.
+    //assert!(output.will_validate(), "Output should validate by default (maybe browser dependent?)");
+
+    assert!(
+        output.validity().valid(),
+        "Our <output>s validity should be true."
+    );
+
+    assert!(
+        output.validation_message().is_ok(),
+        "We should be able to retrieve some validation message from our <output>."
+    );
+
+    assert!(output.check_validity(), "Our <output> should be valid.");
+
+    assert!(
+        output.report_validity(),
+        "Our <output> should report valid."
+    );
+
+    output.set_custom_validity("Some scary error message.");
+
+    assert!(
+        output.labels().length() == 0,
+        "Our basic <output> shouldn't have any labels associated with it."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/paragraph_element.rs b/vendor/web-sys/tests/wasm/paragraph_element.rs
new file mode 100644
index 000000000..2e1ddde3b
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/paragraph_element.rs
@@ -0,0 +1,19 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlParagraphElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_paragraph() -> HtmlParagraphElement;
+}
+
+#[wasm_bindgen_test]
+fn test_paragraph_element() {
+    let paragraph = new_paragraph();
+    paragraph.set_align("right");
+    assert_eq!(
+        paragraph.align(),
+        "right",
+        "Paragraph should be aligned 'right'."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/param_element.rs b/vendor/web-sys/tests/wasm/param_element.rs
new file mode 100644
index 000000000..def2d5317
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/param_element.rs
@@ -0,0 +1,36 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlParamElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_param() -> HtmlParamElement;
+}
+
+#[wasm_bindgen_test]
+fn test_param_element() {
+    let param = new_param();
+    param.set_name("color");
+    assert_eq!(param.name(), "color", "Name of param should be 'color'.");
+
+    param.set_value("purple");
+    assert_eq!(
+        param.value(),
+        "purple",
+        "Value of param should be 'purple'."
+    );
+
+    param.set_value_type("ref");
+    assert_eq!(
+        param.value_type(),
+        "ref",
+        "Value type of param should be 'ref'."
+    );
+
+    param.set_type("text/plain");
+    assert_eq!(
+        param.type_(),
+        "text/plain",
+        "Value of param should be 'text/plain'."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/performance.rs b/vendor/web-sys/tests/wasm/performance.rs
new file mode 100644
index 000000000..84931a627
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/performance.rs
@@ -0,0 +1,15 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::Performance;
+
+#[wasm_bindgen]
+extern "C" {
+    #[wasm_bindgen(js_name = performance)]
+    static PERFORMANCE: Performance;
+}
+
+#[wasm_bindgen_test]
+fn to_json() {
+    let perf = JsValue::from(PERFORMANCE.to_json());
+    assert!(perf.is_object());
+}
diff --git a/vendor/web-sys/tests/wasm/pre_element.rs b/vendor/web-sys/tests/wasm/pre_element.rs
new file mode 100644
index 000000000..9ff7d1163
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/pre_element.rs
@@ -0,0 +1,15 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlPreElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_pre() -> HtmlPreElement;
+}
+
+#[wasm_bindgen_test]
+fn test_pre_element() {
+    let pre = new_pre();
+    pre.set_width(150);
+    assert_eq!(pre.width(), 150, "Pre width should be 150.");
+}
diff --git a/vendor/web-sys/tests/wasm/progress_element.rs b/vendor/web-sys/tests/wasm/progress_element.rs
new file mode 100644
index 000000000..9b6db0b4a
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/progress_element.rs
@@ -0,0 +1,32 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlProgressElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_progress() -> HtmlProgressElement;
+}
+
+#[wasm_bindgen_test]
+fn test_progress_element() {
+    let progress = new_progress();
+    progress.set_max(150.5);
+    assert_eq!(
+        progress.max(),
+        150.5,
+        "Maximum progress value should be 150.5."
+    );
+
+    progress.set_value(22.);
+    assert_eq!(progress.value(), 22., "Progress value should be 22 units.");
+    assert_eq!(
+        progress.position(),
+        (22. / 150.5),
+        "Progress position should be 22 divided by the max possible value."
+    );
+
+    assert!(
+        progress.labels().length() == 0,
+        "Our simple progress bar shouldn't be associated with any labels."
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/quote_element.rs b/vendor/web-sys/tests/wasm/quote_element.rs
new file mode 100644
index 000000000..202bf67c6
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/quote_element.rs
@@ -0,0 +1,18 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlQuoteElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_quote() -> HtmlQuoteElement;
+}
+
+#[wasm_bindgen_test]
+fn test_quote_element() {
+    let quote = new_quote();
+    quote.set_cite("https://en.wikipedia.org/wiki/Rust_(programming_language)");
+    assert_eq!(
+        quote.cite(),
+        "https://en.wikipedia.org/wiki/Rust_(programming_language)"
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/response.js b/vendor/web-sys/tests/wasm/response.js
new file mode 100644
index 000000000..0d2e68647
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/response.js
@@ -0,0 +1,13 @@
+export function new_response() {
+  return new Response(null, {status: 501});
+}
+
+export function get_wasm_imports() {
+  return {
+    imports: {
+      imported_func: function () {
+        return 1;
+      }
+    }
+  };
+}
diff --git a/vendor/web-sys/tests/wasm/response.rs b/vendor/web-sys/tests/wasm/response.rs
new file mode 100644
index 000000000..bd1727971
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/response.rs
@@ -0,0 +1,68 @@
+use js_sys::{ArrayBuffer, DataView, Object, Promise, Reflect, WebAssembly};
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::JsFuture;
+use wasm_bindgen_test::*;
+use web_sys::{Headers, Response, ResponseInit};
+
+#[wasm_bindgen(module = "/tests/wasm/response.js")]
+extern "C" {
+    fn new_response() -> Response;
+    fn get_wasm_imports() -> Object;
+}
+
+#[wasm_bindgen_test]
+fn test_response_from_js() {
+    let response = new_response();
+    assert!(!response.ok());
+    assert!(!response.redirected());
+    assert_eq!(response.status(), 501);
+}
+
+#[wasm_bindgen_test]
+async fn test_response_from_bytes() {
+    let mut bytes: [u8; 3] = [1, 3, 5];
+    let response = Response::new_with_opt_u8_array(Some(&mut bytes)).unwrap();
+    assert!(response.ok());
+    assert_eq!(response.status(), 200);
+
+    let buf_promise = response.array_buffer().unwrap();
+    let buf_val = JsFuture::from(buf_promise).await.unwrap();
+    assert!(buf_val.is_instance_of::<ArrayBuffer>());
+    let array_buf: ArrayBuffer = buf_val.dyn_into().unwrap();
+    let data_view = DataView::new(&array_buf, 0, bytes.len());
+    for (i, byte) in bytes.iter().enumerate() {
+        assert_eq!(&data_view.get_uint8(i), byte);
+    }
+}
+
+#[wasm_bindgen_test]
+async fn test_response_from_other_body() {
+    let input = "Hello, world!";
+    let response_a = Response::new_with_opt_str(Some(input)).unwrap();
+    let body = response_a.body();
+    let response_b = Response::new_with_opt_readable_stream(body.as_ref()).unwrap();
+    let output = JsFuture::from(response_b.text().unwrap()).await.unwrap();
+    assert_eq!(JsValue::from_str(input), output);
+}
+
+// Because it relies on `Response`, this can't go in `js-sys`, so put it here instead.
+#[wasm_bindgen_test]
+async fn wasm_instantiate_streaming() {
+    // Taken from `crates/js-sys/tests/wasm/WebAssembly.js`.
+    let mut wasm = *b"\x00asm\x01\x00\x00\x00\x01\x08\x02`\x01\x7f\x00`\x00\x00\x02\x19\x01\x07imports\rimported_func\x00\x00\x03\x02\x01\x01\x07\x11\x01\rexported_func\x00\x01\n\x08\x01\x06\x00A*\x10\x00\x0b";
+
+    let headers = Headers::new().unwrap();
+    headers.append("Content-Type", "application/wasm").unwrap();
+    let response = Response::new_with_opt_u8_array_and_init(
+        Some(&mut wasm),
+        ResponseInit::new().headers(&headers),
+    )
+    .unwrap();
+    let response = Promise::resolve(&response);
+    let imports = get_wasm_imports();
+    let p = WebAssembly::instantiate_streaming(&response, &imports);
+    let obj = JsFuture::from(p).await.unwrap();
+    assert!(Reflect::get(obj.as_ref(), &"instance".into())
+        .unwrap()
+        .is_instance_of::<WebAssembly::Instance>());
+}
diff --git a/vendor/web-sys/tests/wasm/rtc_rtp_transceiver_direction.rs b/vendor/web-sys/tests/wasm/rtc_rtp_transceiver_direction.rs
new file mode 100644
index 000000000..38b30dd0b
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/rtc_rtp_transceiver_direction.rs
@@ -0,0 +1,80 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::JsFuture;
+use wasm_bindgen_test::*;
+
+use web_sys::{
+    RtcPeerConnection, RtcRtpTransceiver, RtcRtpTransceiverDirection, RtcRtpTransceiverInit,
+    RtcSessionDescriptionInit,
+};
+
+#[wasm_bindgen(
+    inline_js = "export function is_unified_avail() { return Object.keys(RTCRtpTransceiver.prototype).indexOf('currentDirection')>-1; }"
+)]
+extern "C" {
+    /// Available in FF since forever, in Chrome since 72, in Safari since 12.1
+    fn is_unified_avail() -> bool;
+}
+
+#[wasm_bindgen_test]
+async fn rtc_rtp_transceiver_direction() {
+    if !is_unified_avail() {
+        return;
+    }
+
+    let mut tr_init: RtcRtpTransceiverInit = RtcRtpTransceiverInit::new();
+
+    let pc1: RtcPeerConnection = RtcPeerConnection::new().unwrap();
+
+    let tr1: RtcRtpTransceiver = pc1.add_transceiver_with_str_and_init(
+        "audio",
+        tr_init.direction(RtcRtpTransceiverDirection::Sendonly),
+    );
+    assert_eq!(tr1.direction(), RtcRtpTransceiverDirection::Sendonly);
+    assert_eq!(tr1.current_direction(), None);
+
+    let pc2: RtcPeerConnection = RtcPeerConnection::new().unwrap();
+
+    let (_, p2) = exchange_sdps(pc1, pc2).await;
+    assert_eq!(tr1.direction(), RtcRtpTransceiverDirection::Sendonly);
+    assert_eq!(
+        tr1.current_direction(),
+        Some(RtcRtpTransceiverDirection::Sendonly)
+    );
+
+    let tr2: RtcRtpTransceiver = js_sys::try_iter(&p2.get_transceivers())
+        .unwrap()
+        .unwrap()
+        .next()
+        .unwrap()
+        .unwrap()
+        .unchecked_into();
+
+    assert_eq!(tr2.direction(), RtcRtpTransceiverDirection::Recvonly);
+    assert_eq!(
+        tr2.current_direction(),
+        Some(RtcRtpTransceiverDirection::Recvonly)
+    );
+}
+
+async fn exchange_sdps(
+    p1: RtcPeerConnection,
+    p2: RtcPeerConnection,
+) -> (RtcPeerConnection, RtcPeerConnection) {
+    let offer = JsFuture::from(p1.create_offer()).await.unwrap();
+    let offer = offer.unchecked_into::<RtcSessionDescriptionInit>();
+    JsFuture::from(p1.set_local_description(&offer))
+        .await
+        .unwrap();
+    JsFuture::from(p2.set_remote_description(&offer))
+        .await
+        .unwrap();
+    let answer = JsFuture::from(p2.create_answer()).await.unwrap();
+    let answer = answer.unchecked_into::<RtcSessionDescriptionInit>();
+    JsFuture::from(p2.set_local_description(&answer))
+        .await
+        .unwrap();
+    JsFuture::from(p1.set_remote_description(&answer))
+        .await
+        .unwrap();
+    (p1, p2)
+}
diff --git a/vendor/web-sys/tests/wasm/script_element.rs b/vendor/web-sys/tests/wasm/script_element.rs
new file mode 100644
index 000000000..f8816bd8f
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/script_element.rs
@@ -0,0 +1,80 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlScriptElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_script() -> HtmlScriptElement;
+}
+
+#[wasm_bindgen_test]
+fn test_script_element() {
+    let element = new_script();
+    assert_eq!(element.src(), "", "Shouldn't have a src");
+    element.set_src("https://example.com/script.js");
+    assert_eq!(
+        element.src(),
+        "https://example.com/script.js",
+        "Should have a src"
+    );
+
+    assert_eq!(element.type_(), "", "Shouldn't have a type");
+    element.set_type("application/javascript");
+    assert_eq!(
+        element.type_(),
+        "application/javascript",
+        "Should have a type"
+    );
+
+    assert!(!element.no_module(), "Shouldn't be a nomodule");
+    element.set_no_module(true);
+    assert!(element.no_module(), "Should be a nomodule");
+
+    assert_eq!(element.charset(), "", "Shouldn't have a charset");
+    element.set_charset("UTF-8");
+    assert_eq!(element.charset(), "UTF-8", "Should have a charset");
+
+    assert!(element.r#async(), "Should be async");
+    element.set_async(false);
+    assert!(!element.r#async(), "Shouldn't be a async");
+
+    assert!(!element.defer(), "Shouldn't be a defer");
+    element.set_defer(true);
+    assert!(element.defer(), "Should be a defer");
+
+    assert!(
+        element.cross_origin().is_none(),
+        "Shouldn't have a crossorigin"
+    );
+    element.set_cross_origin(Some("anonymous"));
+    assert_eq!(
+        element.cross_origin().unwrap(),
+        "anonymous",
+        "Should have a crossorigin"
+    );
+    element.set_cross_origin(None);
+    assert!(
+        element.cross_origin().is_none(),
+        "Shouldn't have a crossorigin"
+    );
+
+    assert_eq!(element.text().unwrap(), "", "Shouldn't have text");
+    assert_eq!(element.set_text("text").unwrap(), ());
+    assert_eq!(element.text().unwrap(), "text", "Should have text");
+
+    assert_eq!(element.event(), "", "Shouldn't have an event");
+    element.set_event("ev");
+    assert_eq!(element.event(), "ev", "Should have an event");
+
+    assert_eq!(element.html_for(), "", "Shouldn't have an html_for");
+    element.set_html_for("hey");
+    assert_eq!(element.html_for(), "hey", "Should have an html_for");
+
+    assert_eq!(element.integrity(), "", "Shouldn't have an integrity");
+    element.set_integrity("integrity-val");
+    assert_eq!(
+        element.integrity(),
+        "integrity-val",
+        "Should have an integrity"
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/select_element.rs b/vendor/web-sys/tests/wasm/select_element.rs
new file mode 100644
index 000000000..2f2319f4f
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/select_element.rs
@@ -0,0 +1,181 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlSelectElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_select_with_food_opts() -> HtmlSelectElement;
+}
+
+#[wasm_bindgen_test]
+fn test_select_element() {
+    // Creates a select with four options.  Options are ["tomato", "potato", "orange", "apple"], where
+    // the string is the .value and .text of each option.
+    let select = new_select_with_food_opts();
+    select.set_autofocus(true);
+    assert_eq!(
+        select.autofocus(),
+        true,
+        "Select element should have a true autofocus property."
+    );
+
+    select.set_autofocus(false);
+    assert_eq!(
+        select.autofocus(),
+        false,
+        "Select element should have a false autofocus property."
+    );
+
+    //    TODO: This test currently fails on Firefox, but not Chrome.  In Firefox, even though we select.set_autocomplete(), select.autocomplete() yields an empty String.
+    //    select.set_autocomplete("tomato");
+    //    assert_eq!(select.autocomplete(), "tomato", "Select element should have a 'tomato' autocomplete property.");
+
+    select.set_disabled(true);
+    assert_eq!(
+        select.disabled(),
+        true,
+        "Select element should be disabled."
+    );
+
+    select.set_disabled(false);
+    assert_eq!(
+        select.disabled(),
+        false,
+        "Select element should not be disabled."
+    );
+
+    assert!(
+        select.form().is_none(),
+        "Select should not be associated with a form."
+    );
+
+    select.set_multiple(false);
+    assert_eq!(
+        select.multiple(),
+        false,
+        "Select element should have a false multiple property."
+    );
+
+    select.set_multiple(true);
+    assert_eq!(
+        select.multiple(),
+        true,
+        "Select element should have a true multiple property."
+    );
+
+    select.set_name("potato");
+    assert_eq!(
+        select.name(),
+        "potato",
+        "Select element should have a name property of 'potato'."
+    );
+
+    select.set_required(true);
+    assert_eq!(
+        select.required(),
+        true,
+        "Select element should be required."
+    );
+
+    select.set_required(false);
+    assert_eq!(
+        select.required(),
+        false,
+        "Select element should not be required."
+    );
+
+    select.set_size(432);
+    assert_eq!(
+        select.size(),
+        432,
+        "Select element should have a size property of 432."
+    );
+
+    // Default type seems to be "select-multiple" for the browsers I tested, but there's no guarantee
+    // on this, so let's just make sure we get back something here.
+    assert!(
+        select.type_().len() > 0,
+        "Select element should have some type."
+    );
+
+    assert!(
+        select.options().length() == 4,
+        "Select element should have four options."
+    );
+
+    select.set_length(12);
+    assert_eq!(
+        select.length(),
+        12,
+        "Select element should have a length of 12."
+    );
+    // Reset the length to four, as that's how many options we actually have.
+    select.set_length(4);
+
+    assert!(
+        select
+            .named_item("this should definitely find nothing")
+            .is_none(),
+        "Shouldn't be able to find a named item with the given string."
+    );
+
+    assert!(
+        select.selected_options().length() == 1,
+        "One option should be selected by default, just by way of having items."
+    );
+
+    select.set_selected_index(2);
+    assert_eq!(
+        select.selected_index(),
+        2,
+        "Select element should have a selected index of 2."
+    );
+
+    // Quote from docs: The value property sets or returns the value of the selected option in a drop-down list.
+    select.set_value("tomato"); // Select the "tomato" option
+    assert_eq!(
+        select.value(),
+        "tomato",
+        "Select element should have no selected value."
+    );
+
+    // This might be browser dependent, potentially rendering this test useless?  Worked fine in Chrome and Firefox for now.
+    assert_eq!(
+        select.will_validate(),
+        true,
+        "Select element should not validate by default."
+    );
+
+    assert!(
+        select.validation_message().is_ok(),
+        "Select element should retrieve a validation message."
+    );
+
+    assert!(
+        select.validity().valid(),
+        "Our basic select should be valid."
+    );
+
+    assert!(
+        select.check_validity(),
+        "Our basic select should check out as valid."
+    );
+
+    assert!(
+        select.report_validity(),
+        "Our basic select should report valid."
+    );
+
+    select.set_custom_validity("Some custom validity error.");
+
+    assert!(
+        select.labels().length() == 0,
+        "There should be no labels associated with our select element."
+    );
+
+    // TODO: This test won't work until this bug is fixed: https://www.w3.org/Bugs/Public/show_bug.cgi?id=20720.  Sometime in the future, either remove this test or uncomment after bug is fixed.
+    // assert!(select.named_item("tomato").is_some(), "Should be able to find the 'tomato' option before removing it.");
+    // select.remove(0);
+    // assert!(select.named_item("tomato").is_none(), "Shouldn't be able to find the 'tomato' option after removing it.")
+    // TODO: As a result, we are missing a test for the remove() method.
+}
diff --git a/vendor/web-sys/tests/wasm/slot_element.rs b/vendor/web-sys/tests/wasm/slot_element.rs
new file mode 100644
index 000000000..d01ccc9fc
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/slot_element.rs
@@ -0,0 +1,16 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlSlotElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_slot() -> HtmlSlotElement;
+}
+
+#[wasm_bindgen_test]
+fn test_slot_element() {
+    let _slot = new_slot();
+    // TODO: Test fails in Firefox, but not in Chrome.  Error in Firefox is 'ReferenceError: HTMLSlotElement is not defined'.  https://w3c-test.org/shadow-dom/HTMLSlotElement-interface.html
+    // slot.set_name("root_separator");
+    // assert_eq!(slot.name(), "root_separator", "Slot name should 'root_separator'.");
+}
diff --git a/vendor/web-sys/tests/wasm/span_element.rs b/vendor/web-sys/tests/wasm/span_element.rs
new file mode 100644
index 000000000..490df42ad
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/span_element.rs
@@ -0,0 +1,14 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlSpanElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_span() -> HtmlSpanElement;
+}
+
+#[wasm_bindgen_test]
+fn test_span_element() {
+    let _element = new_span();
+    assert!(true, "Span doesn't have an interface");
+}
diff --git a/vendor/web-sys/tests/wasm/style_element.rs b/vendor/web-sys/tests/wasm/style_element.rs
new file mode 100644
index 000000000..eaa43a9ed
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/style_element.rs
@@ -0,0 +1,24 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlStyleElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_style() -> HtmlStyleElement;
+}
+
+#[wasm_bindgen_test]
+fn test_style_element() {
+    let element = new_style();
+    assert!(!element.disabled(), "Should be disabled");
+    element.set_disabled(true);
+    assert!(!element.disabled(), "Should be disabled"); // Not sure why this is but Chrome in Firefox behabe the same
+
+    assert_eq!(element.type_(), "", "Shouldn't have a type");
+    element.set_type("text/css");
+    assert_eq!(element.type_(), "text/css", "Should have a type");
+
+    assert_eq!(element.media(), "", "Shouldn't have a media");
+    element.set_media("screen, print");
+    assert_eq!(element.media(), "screen, print", "Should have a media");
+}
diff --git a/vendor/web-sys/tests/wasm/table_element.rs b/vendor/web-sys/tests/wasm/table_element.rs
new file mode 100644
index 000000000..3f974c59f
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/table_element.rs
@@ -0,0 +1,179 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::{HtmlTableCaptionElement, HtmlTableElement, HtmlTableSectionElement};
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_table() -> HtmlTableElement;
+    fn new_caption() -> HtmlTableCaptionElement;
+    fn new_thead() -> HtmlTableSectionElement;
+    fn new_tfoot() -> HtmlTableSectionElement;
+}
+
+#[wasm_bindgen_test]
+fn test_table_element() {
+    let table = new_table();
+    assert!(
+        table.caption().is_none(),
+        "New table element should have no caption element."
+    );
+
+    table.create_caption();
+    assert!(
+        table.caption().is_some(),
+        "Table element should have caption element after create caption."
+    );
+
+    table.delete_caption();
+    assert!(
+        table.caption().is_none(),
+        "Table element should have no caption element after delete caption."
+    );
+
+    table.set_caption(Some(&new_caption()));
+    assert!(
+        table.caption().is_some(),
+        "Table element should have caption element after set."
+    );
+
+    assert!(
+        table.t_head().is_none(),
+        "New table element should have no thead element."
+    );
+
+    table.create_t_head();
+    assert!(
+        table.t_head().is_some(),
+        "Table element should have thead element after create thead."
+    );
+
+    table.delete_t_head();
+    assert!(
+        table.t_head().is_none(),
+        "Table element should have no thead element after delete thead."
+    );
+
+    table.set_t_head(Some(&new_thead()));
+    assert!(
+        table.t_head().is_some(),
+        "Table element should have thead element after set."
+    );
+
+    assert!(
+        table.t_foot().is_none(),
+        "New table element should have no tfoot element."
+    );
+
+    table.create_t_foot();
+    assert!(
+        table.t_foot().is_some(),
+        "Table element should have tfoot element after create tfoot."
+    );
+
+    table.delete_t_foot();
+    assert!(
+        table.t_foot().is_none(),
+        "Table element should have no tfoot element after delete tfoot."
+    );
+
+    table.set_t_foot(Some(&new_tfoot()));
+    assert!(
+        table.t_foot().is_some(),
+        "Table element should have tfoot element after set."
+    );
+
+    assert!(
+        table.t_bodies().length() == 0,
+        "New table element should have no tbody element."
+    );
+
+    table.create_t_body();
+    assert!(
+        table.t_bodies().length() == 1,
+        "Table element should have tbody element after create tbody."
+    );
+
+    assert!(
+        table.rows().length() == 0,
+        "New table element should have no rows."
+    );
+
+    table
+        .insert_row_with_index(0)
+        .expect("Failed to insert row at index 0");
+    assert!(
+        table.rows().length() == 1,
+        "Table element should have rows after insert row."
+    );
+
+    table
+        .delete_row(0)
+        .expect("Failed to delete row at index 0");
+    assert!(
+        table.rows().length() == 0,
+        "Table element should have no rows after delete row."
+    );
+
+    table.set_align("left");
+    assert_eq!(
+        table.align(),
+        "left",
+        "Table element should have an align property of 'left'"
+    );
+
+    table.set_border("10");
+    assert_eq!(
+        table.border(),
+        "10",
+        "Table element should have a border property of '10'"
+    );
+
+    table.set_frame("above");
+    assert_eq!(
+        table.frame(),
+        "above",
+        "Table element should have an frame property of 'above'"
+    );
+
+    table.set_rules("none");
+    assert_eq!(
+        table.rules(),
+        "none",
+        "Table element should have an rules property of 'none'"
+    );
+
+    table.set_summary("summary");
+    assert_eq!(
+        table.summary(),
+        "summary",
+        "Table element should have an summary property of 'summary'"
+    );
+
+    table.set_width("1000");
+    assert_eq!(
+        table.width(),
+        "1000",
+        "Table element should have a width property of '1000'"
+    );
+
+    table.set_bg_color("#ffffff");
+    assert_eq!(
+        table.bg_color(),
+        "#ffffff",
+        "Table element should have an bgColor property of '#ffffff'"
+    );
+
+    table.set_cell_padding("1");
+    assert_eq!(
+        table.cell_padding(),
+        "1",
+        "Table element should have an cellPadding property of '1'"
+    );
+
+    table.set_cell_spacing("1");
+    assert_eq!(
+        table.cell_spacing(),
+        "1",
+        "Table element should have an cellSpacing property of '1'"
+    );
+}
diff --git a/vendor/web-sys/tests/wasm/title_element.rs b/vendor/web-sys/tests/wasm/title_element.rs
new file mode 100644
index 000000000..ebc7aa74e
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/title_element.rs
@@ -0,0 +1,16 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::HtmlTitleElement;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_title() -> HtmlTitleElement;
+}
+
+#[wasm_bindgen_test]
+fn title_element() {
+    let element = new_title();
+    assert_eq!(element.text().unwrap(), "", "Shouldn't have an text");
+    assert_eq!(element.set_text("page text").unwrap(), ());
+    assert_eq!(element.text().unwrap(), "page text", "Should have an text");
+}
diff --git a/vendor/web-sys/tests/wasm/whitelisted_immutable_slices.rs b/vendor/web-sys/tests/wasm/whitelisted_immutable_slices.rs
new file mode 100644
index 000000000..14bda73c0
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/whitelisted_immutable_slices.rs
@@ -0,0 +1,77 @@
+//! When generating our web_sys APIs we default to setting slice references that
+//! get passed to JS as mutable in case they get mutated in JS.
+//!
+//! In certain cases we know for sure that the slice will not get mutated - for
+//! example when working with the WebGlRenderingContext APIs.
+//!
+//! These tests ensure that whitelisted methods do indeed accept immutable slices.
+//! Especially important since this whitelist is stringly typed and currently
+//! maintained by hand.
+//!
+//! @see https://github.com/rustwasm/wasm-bindgen/issues/1005
+
+use wasm_bindgen::{JsCast, JsValue};
+use web_sys::{WebGl2RenderingContext, WebGlRenderingContext, WebSocket};
+
+// Ensure that our whitelisted WebGlRenderingContext methods compile with immutable slices.
+fn test_webgl_rendering_context_immutable_slices() {
+    let gl = JsValue::null().unchecked_into::<WebGlRenderingContext>();
+
+    gl.vertex_attrib1fv_with_f32_array(0, &[1.]);
+    gl.vertex_attrib2fv_with_f32_array(0, &[1.]);
+    gl.vertex_attrib3fv_with_f32_array(0, &[1.]);
+    gl.vertex_attrib4fv_with_f32_array(0, &[1.]);
+
+    gl.uniform1fv_with_f32_array(None, &[1.]);
+    gl.uniform2fv_with_f32_array(None, &[1.]);
+    gl.uniform3fv_with_f32_array(None, &[1.]);
+    gl.uniform4fv_with_f32_array(None, &[1.]);
+
+    gl.uniform_matrix2fv_with_f32_array(None, false, &[1.]);
+    gl.uniform_matrix3fv_with_f32_array(None, false, &[1.]);
+    gl.uniform_matrix4fv_with_f32_array(None, false, &[1.]);
+
+    gl.tex_image_2d_with_i32_and_i32_and_i32_and_format_and_type_and_opt_u8_array(
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        Some(&[1]),
+    );
+    gl.tex_sub_image_2d_with_i32_and_i32_and_u32_and_type_and_opt_u8_array(
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        Some(&[1]),
+    );
+    gl.compressed_tex_image_2d_with_u8_array(0, 0, 0, 0, 0, 0, &[1]);
+}
+
+// Ensure that our whitelisted WebGl2RenderingContext methods compile with immutable slices.
+fn test_webgl2_rendering_context_immutable_slices() {
+    let gl = JsValue::null().unchecked_into::<WebGl2RenderingContext>();
+
+    gl.tex_image_3d_with_opt_u8_array(0, 0, 0, 0, 0, 0, 0, 0, 0, Some(&[1]));
+    gl.tex_sub_image_3d_with_opt_u8_array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, Some(&[1]));
+    gl.compressed_tex_image_3d_with_u8_array(0, 0, 0, 0, 0, 0, 0, &[1]);
+}
+
+// Ensure that our whitelisted WebSocket methods compile with immutable slices.
+fn test_websocket_immutable_slices() {
+    let ws = JsValue::null().unchecked_into::<WebSocket>();
+    ws.send_with_u8_array(&[0]);
+}
+
+// TODO:
+//#[wasm_bindgen_test]
+//fn test_another_types_immutable_slices_here() {
+//}
diff --git a/vendor/web-sys/tests/wasm/xpath_result.rs b/vendor/web-sys/tests/wasm/xpath_result.rs
new file mode 100644
index 000000000..933ac97ba
--- /dev/null
+++ b/vendor/web-sys/tests/wasm/xpath_result.rs
@@ -0,0 +1,27 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::XPathResult;
+
+#[wasm_bindgen(module = "/tests/wasm/element.js")]
+extern "C" {
+    fn new_xpath_result() -> XPathResult;
+}
+
+#[wasm_bindgen_test]
+fn test_xpath_result() {
+    let xpath_result = new_xpath_result();
+    assert_eq!(
+        xpath_result.result_type(),
+        XPathResult::UNORDERED_NODE_ITERATOR_TYPE
+    );
+    assert_eq!(xpath_result.invalid_iterator_state(), false);
+    assert_eq!(
+        xpath_result
+            .iterate_next()
+            .unwrap()
+            .unwrap()
+            .text_content()
+            .unwrap(),
+        "tomato"
+    );
+}