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<!doctype html>
<title>WebSockets: Serialized connection attempts</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../constants.sub.js"></script>
<meta name="variant" content="?default">
<meta name="variant" content="?wss">
<div id="log"></div>
<script>
async_test(function(t) {
  const paths = ['/invalid1', '/invalid2', '/invalid3', '/echo']; // /echo is valid
  let currentTestIndex = 0;
  let isPreviousConnectionClosed = true;

  function testNextPath() {
    if (currentTestIndex < paths.length) {
      t.step(function() {
        assert_true(isPreviousConnectionClosed, "Previous connection should be closed before attempting a new one");
        isPreviousConnectionClosed = false;

        const path = paths[currentTestIndex];
        const ws = new WebSocket(SCHEME_DOMAIN_PORT + path);

        ws.onclose = t.step_func(function(e) {
          if (path !== '/echo') {
            assert_false(e.wasClean, "Connection should fail uncleanly for path: " + path);
          } else {
            assert_true(e.wasClean, "Connection to /echo should close cleanly");
          }
          isPreviousConnectionClosed = true;
          currentTestIndex++;
          t.step_timeout(testNextPath, 0); // Schedule the next test
        });

        ws.onopen = t.step_func(function() {
          if (path === '/echo') {
            assert_true(true, "Connection to /echo should succeed");
            ws.close();
          } else {
            t.unreached_func("Invalid path should not succeed");
          }
        });

        ws.onerror = t.step_func(function() {
          if (path === '/echo') {
            t.unreached_func("Connection to /echo should not encounter an error");
          } // otherwise failure is expected
        });
      });
    } else {
      t.done();
    }
  }

  testNextPath();
});
</script>