<!DOCTYPE html>
<head>
  <meta charset=utf-8>
  <title>Test import.meta.resolve</title>
</head>
<body onload='testLoaded()'>

<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script>
  SimpleTest.waitForExplicitFinish();

  function assertThrowsTypeError(fn, msg) {
    let hasThrown = false;
    try {
      fn();
    } catch (error) {
      hasThrown = true;
      ok(error instanceof TypeError, "Thrown error should be TypeError.");
    }
    ok(hasThrown, msg);
  }

  function testLoaded() {
    SimpleTest.finish();
  }
</script>

<script type="module">
  is(typeof import.meta.resolve, "function", "resolve should be a function.");
  is(import.meta.resolve.name, "resolve", "resolve.name should be 'resolve'.");
  is(import.meta.resolve.length, 1, "resolve.length should be 1.");
  is(Object.getPrototypeOf(import.meta.resolve), Function.prototype,
     "prototype of resolve should be Function.prototype.");
</script>

<script type="module">
  is(import.meta.resolve("http://example.com/"), "http://example.com/",
     "resolve specifiers with absolute path.");
</script>

<script type="module">
  is(import.meta.resolve("./x"), (new URL("./x", import.meta.url)).href,
     "resolve specifiers with relative path.");
</script>

<script type="module">
  assertThrowsTypeError(() => new import.meta.resolve("./x"),
                        "import.meta.resolve is not a constructor.");
</script>

<script type="module">
  // Fails to resolve the specifier should throw a TypeError.
  assertThrowsTypeError(() => import.meta.resolve("failed"),
                        "import.meta.resolve should throw if fails to resolve");
</script>

<script type="module">
  for (const name of Reflect.ownKeys(import.meta)) {
    const desc = Object.getOwnPropertyDescriptor(import.meta, name);
    is(desc.writable, true, name + ".writable should be true.");
    is(desc.enumerable, true, name + ".enumerable should be true.");
    is(desc.configurable, true, name + ".configurable should be true.");
  }
</script>
</body>
