test_fetchedModuleHasErrorToRethrow_dynamic.html

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<!DOCTYPE html>

<meta charset=utf-8>

<title>Test an imported module has an error to rethrow when import()</title>

<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

<script type="module" src="./import_parse_error.mjs"></script>

<script>

  SimpleTest.waitForExplicitFinish();

  let hasErrorToRethrow = false;

  let cachedError;

  window.onerror = (_1, _2, _3, _4, error) => {

    hasErrorToRethrow = true;

    cachedError = error;

};

  function testLoaded() {

    // The top-level script "import_parse.error.mjs" has an error to rethrow.

    is(hasErrorToRethrow, true, "hasErrorToRethrow should be set to true");

    // Dynamic import the same module with an error to rethrow.

    import("./import_parse_error.mjs").then(() => {

      ok(false, "Should have thrown SyntaxError");

    }).catch((e) => {

      ok(e instanceof SyntaxError , "Should throw a SyntaxError");

      ok(e === cachedError, "The same error object should be thrown");

});

    // Dynamic import a module which has an error to rethrow.

    import("./import_parse_error_3.mjs").then(() => {

      ok(false, "Should have thrown SyntaxError");

    }).catch((e) => {

      ok(e instanceof SyntaxError , "Should throw a SyntaxError");

      ok(e === cachedError, "The same error object should be thrown");

      SimpleTest.finish();

});

</script>

<body onload='testLoaded()'></body>