36 lines
1.6 KiB
HTML
36 lines
1.6 KiB
HTML
<!doctype html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<iframe id="i" src="/common/blank.html"></iframe>
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<script>
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promise_test(async t => {
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let start_length = navigation.entries().length;
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let start_index = navigation.currentEntry.index;
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let start_history_length = history.length;
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// Wait for after the load event so that the navigation doesn't get converted
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// into a replace navigation.
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await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));
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await i.contentWindow.navigation.navigate("#").finished;
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assert_equals(i.contentWindow.navigation.entries().length, 2);
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assert_equals(i.contentWindow.navigation.currentEntry.index, 1);
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assert_equals(navigation.entries().length, start_length);
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assert_equals(navigation.currentEntry.index, start_index);
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assert_equals(history.length, start_history_length + 1);
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i.remove();
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assert_equals(navigation.entries().length, start_length);
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assert_equals(navigation.currentEntry.index, start_index);
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assert_equals(history.length, start_history_length + 1);
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// back() here should do nothing. The iframe that would have navigated has
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// been removed. No navigate event should be fired.
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navigation.onnavigate = t.unreached_func("navigate must not fire");
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navigation.oncurrententrychange = t.unreached_func("currententrychange must not fire");
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history.back();
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// Give time for the navigation to proceed.
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await new Promise(resolve => t.step_timeout(resolve, 20));
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}, "history.back() does not fire a navigate event when there's nothing to navigate");
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</script>
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