1 files changed, 77 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/import-meta/import-meta-resolve.any.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/import-meta/import-meta-resolve.any.js
new file mode 100644
index 0000000000..5b8a84efaf
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/import-meta/import-meta-resolve.any.js
@@ -0,0 +1,77 @@
+// META: global=dedicatedworker-module,sharedworker-module,serviceworker-module
+
+import { importMetaOnRootModule, importMetaOnDependentModule }
+  from "./import-meta-root.js";
+
+test(() => {
+  assert_equals(typeof import.meta.resolve, "function");
+  assert_equals(import.meta.resolve.name, "resolve");
+  assert_equals(import.meta.resolve.length, 1);
+  assert_equals(Object.getPrototypeOf(import.meta.resolve), Function.prototype);
+}, "import.meta.resolve is a function with the right properties");
+
+test(() => {
+  assert_false(isConstructor(import.meta.resolve));
+
+  assert_throws_js(TypeError, () => new import.meta.resolve("./x"));
+}, "import.meta.resolve is not a constructor");
+
+test(() => {
+  // See also tests in ./import-meta-resolve-importmap.html.
+
+  assert_equals(import.meta.resolve({ toString() { return "./x"; } }), resolveURL("x"));
+  assert_throws_js(TypeError, () => import.meta.resolve(Symbol("./x")),
+    "symbol");
+  assert_throws_js(TypeError, () => import.meta.resolve(),
+    "no argument (which is treated like \"undefined\")");
+}, "import.meta.resolve ToString()s its argument");
+
+test(() => {
+  assert_equals(import.meta.resolve("./x"), resolveURL("x"),
+    "current module import.meta");
+  assert_equals(importMetaOnRootModule.resolve("./x"), resolveURL("x"),
+    "sibling module import.meta");
+  assert_equals(importMetaOnDependentModule.resolve("./x"), resolveURL("x"),
+    "dependency module import.meta");
+}, "Relative URL-like specifier resolution");
+
+test(() => {
+  assert_equals(import.meta.resolve("https://example.com/"), "https://example.com/",
+    "current module import.meta");
+  assert_equals(importMetaOnRootModule.resolve("https://example.com/"), "https://example.com/",
+    "sibling module import.meta");
+  assert_equals(importMetaOnDependentModule.resolve("https://example.com/"), "https://example.com/",
+    "dependency module import.meta");
+}, "Absolute URL-like specifier resolution");
+
+test(() => {
+  const invalidSpecifiers = [
+    "https://eggplant:b/c",
+    "pumpkins.js",
+    ".tomato",
+    "..zuccini.mjs",
+    ".\\yam.es"
+  ];
+
+  for (const specifier of invalidSpecifiers) {
+    assert_throws_js(TypeError, () => import.meta.resolve(specifier), specifier);
+  }
+}, "Invalid module specifiers");
+
+test(() => {
+  const { resolve } = import.meta;
+  assert_equals(resolve("https://example.com/"), "https://example.com/", "current module import.meta");
+}, "Works fine with no this value");
+
+function resolveURL(urlRelativeToThisTest) {
+  return (new URL(urlRelativeToThisTest, location.href)).href;
+}
+
+function isConstructor(o) {
+  try {
+    new (new Proxy(o, { construct: () => ({}) }));
+    return true;
+  } catch {
+    return false;
+  }
+}