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<!DOCTYPE html>
<meta charset=utf-8>
<title>Test syntax errors parsing an async module are reported</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script>
  var wasRun = false;
  var errorCount = 0;
  var syntaxErrorCount = 0;
  var eventCount = 0;

  SimpleTest.waitForExplicitFinish();
  window.onerror = handleError;

  function handleError(message, url, line, column, error) {
    errorCount++;
    if (error instanceof SyntaxError) {
      syntaxErrorCount++;
    }
  }

  function testError() {
    ok(!wasRun, 'Check script was not run');
    ok(errorCount == 1, 'Check that an error was reported');
    ok(syntaxErrorCount == 1, 'Check that a syntax error was reported');
    ok(eventCount == 0, 'Check that no error event was fired');
    SimpleTest.finish();
  }
</script>
<script type="module" src="module_badSyntax.mjs" async onerror="eventCount++"></script>
<body onload='testError()'></body>