File: navigate-double-intercept.html

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<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta name="variant" content="?no-currententrychange">
<meta name="variant" content="?currententrychange">

<script type="module">
import { Recorder, hasVariant } from "./resources/helpers.mjs";
promise_test(async t => {
  // Wait for after the load event so that the navigation doesn't get converted
  // into a replace navigation.
  await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));

  const fromStart = navigation.currentEntry;
  let fromHash1;

  const recorder = new Recorder({
    skipCurrentChange: !hasVariant("currententrychange"),
    finalExpectedEvent: "transition.finished fulfilled"
  });

  recorder.setUpNavigationAPIListeners();

  navigation.addEventListener("navigate", e => {
    e.intercept({ handler() {
      recorder.record("handler run");
      return new Promise(r => t.step_timeout(r, 1));
    }});

    if (location.hash === "#1") {
      fromHash1 = navigation.currentEntry;
    }
  });

  const result1 = navigation.navigate("/common/blank.html#1");
  recorder.setUpResultListeners(result1, " 1");

  const result2 = navigation.navigate("/common/blank.html#2");
  recorder.setUpResultListeners(result2, " 2");

  Promise.resolve().then(() => recorder.record("promise microtask"));

  await recorder.readyToAssert;

  recorder.assert([
    /* event name, location.hash value, navigation.transition properties */
    ["navigate", "", null],
    ["currententrychange", "#1", { from: fromStart, navigationType: "push" }],
    ["handler run", "#1", { from: fromStart, navigationType: "push" }],
    ["AbortSignal abort", "#1", { from: fromStart, navigationType: "push" }],
    ["navigateerror", "#1", { from: fromStart, navigationType: "push" }],

    ["navigate", "#1", null],
    ["currententrychange", "#2", { from: fromHash1, navigationType: "push" }],
    ["handler run", "#2", { from: fromHash1, navigationType: "push" }],
    ["committed fulfilled 1", "#2", { from: fromHash1, navigationType: "push" }],
    ["transition.committed fulfilled 1", "#2", { from: fromHash1, navigationType: "push" }],
    ["finished rejected 1", "#2", { from: fromHash1, navigationType: "push" }],
    ["transition.finished rejected", "#2", { from: fromHash1, navigationType: "push" }],
    ["committed fulfilled 2", "#2", { from: fromHash1, navigationType: "push" }],
    ["transition.committed fulfilled 2", "#2", { from: fromHash1, navigationType: "push" }],
    ["promise microtask", "#2", { from: fromHash1, navigationType: "push" }],
    ["navigatesuccess", "#2", { from: fromHash1, navigationType: "push" }],
    ["finished fulfilled 2", "#2", null],
    ["transition.finished fulfilled", "#2", null]
  ]);

  recorder.assertErrorsAreAbortErrors();
}, "event and promise ordering when navigate() is called repeatedly and handled by intercept()");
</script>