1 files changed, 131 insertions, 0 deletions
diff --git a/accessible/tests/browser/states/browser_test_visibility_2.js b/accessible/tests/browser/states/browser_test_visibility_2.js
new file mode 100644
index 0000000000..ead134069a
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+++ b/accessible/tests/browser/states/browser_test_visibility_2.js
@@ -0,0 +1,131 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test tables, table rows are reported on screen, even if some cells of a given row are
+ * offscreen.
+ */
+addAccessibleTask(
+  `
+  <table id="table" style="width:150vw;" border><tr id="row"><td id="one" style="width:50vw;">one</td><td style="width:50vw;" id="two">two</td><td id="three">three</td></tr></table>
+  `,
+  async function (browser, accDoc) {
+    const table = findAccessibleChildByID(accDoc, "table");
+    const row = findAccessibleChildByID(accDoc, "row");
+    const one = findAccessibleChildByID(accDoc, "one");
+    const two = findAccessibleChildByID(accDoc, "two");
+    const three = findAccessibleChildByID(accDoc, "three");
+
+    await untilCacheOk(
+      () => testVisibility(table, false, false),
+      "table should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(row, false, false),
+      "row should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(one, false, false),
+      "one should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(two, false, false),
+      "two should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(three, true, false),
+      "three should be off screen and visible"
+    );
+  },
+  { chrome: true, iframe: true, remoteIframe: true }
+);
+
+/**
+ * Test rows and cells outside of the viewport are reported as offscreen.
+ */
+addAccessibleTask(
+  `
+  <table id="table" style="height:150vh;" border><tr style="height:100vh;" id="rowA"><td id="one">one</td></tr><tr id="rowB"><td id="two">two</td></tr></table>
+  `,
+  async function (browser, accDoc) {
+    const table = findAccessibleChildByID(accDoc, "table");
+    const rowA = findAccessibleChildByID(accDoc, "rowA");
+    const one = findAccessibleChildByID(accDoc, "one");
+    const rowB = findAccessibleChildByID(accDoc, "rowB");
+    const two = findAccessibleChildByID(accDoc, "two");
+
+    await untilCacheOk(
+      () => testVisibility(table, false, false),
+      "table should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(rowA, false, false),
+      "rowA should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(one, false, false),
+      "one should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(rowB, true, false),
+      "rowB should be off screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(two, true, false),
+      "two should be off screen and visible"
+    );
+  },
+  { chrome: true, iframe: true, remoteIframe: true }
+);
+
+addAccessibleTask(
+  `
+  <div id="div">hello</div>
+  `,
+  async function (browser, accDoc) {
+    let textLeaf = findAccessibleChildByID(accDoc, "div").firstChild;
+    await untilCacheOk(
+      () => testVisibility(textLeaf, false, false),
+      "text should be on screen and visible"
+    );
+    let p = waitForEvent(EVENT_TEXT_INSERTED, "div");
+    await invokeContentTask(browser, [], () => {
+      content.document.getElementById("div").textContent = "goodbye";
+    });
+    await p;
+    textLeaf = findAccessibleChildByID(accDoc, "div").firstChild;
+    await untilCacheOk(
+      () => testVisibility(textLeaf, false, false),
+      "text should be on screen and visible"
+    );
+  },
+  { chrome: true, iframe: true, remoteIframe: true }
+);
+
+/**
+ * Overlapping, opaque divs with the same bounds should not be considered
+ * offscreen.
+ */
+addAccessibleTask(
+  `
+  <style>div { height: 5px; width: 5px; background: green; }</style>
+  <div id="outer" role="group"><div style="background:blue;" id="inner" role="group">hi</div></div>
+  `,
+  async function (browser, accDoc) {
+    const outer = findAccessibleChildByID(accDoc, "outer");
+    const inner = findAccessibleChildByID(accDoc, "inner");
+
+    await untilCacheOk(
+      () => testVisibility(outer, false, false),
+      "outer should be on screen and visible"
+    );
+    await untilCacheOk(
+      () => testVisibility(inner, false, false),
+      "inner should be on screen and visible"
+    );
+  },
+  { chrome: true, iframe: true, remoteIframe: true }
+);