35 lines
1.7 KiB
HTML
35 lines
1.7 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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<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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// 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 navigation.navigate("#foo").finished;
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assert_equals(navigation.entries().length, start_length+1);
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await navigation.back().finished;
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assert_equals(navigation.currentEntry.index, start_index);
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// Traverse forward then immediately do a same-document push. This will
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// truncate the back forward list, and by the time the traverse commits, the
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// destination key will no longer be present in navigation.entries(). The
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// traverse should abort. Because the traverse aborts before the navigate
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// event fires, the navigateerror event should not fire.
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navigation.onnavigateerror = t.unreached_func("navigateerror should not fire");
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let forward_value = navigation.forward();
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await navigation.navigate("#clobber").finished;
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assert_equals(navigation.currentEntry.index, start_index+1);
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await promise_rejects_dom(t, "AbortError", forward_value.committed);
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await promise_rejects_dom(t, "AbortError", forward_value.finished);
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// This leaves navigation.entries() in a consistent state where traversing
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// back and forward still works.
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await navigation.back().finished;
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assert_equals(navigation.currentEntry.index, start_index);
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await navigation.forward().finished;
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assert_equals(navigation.currentEntry.index, start_index+1);
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}, "If forward pruning clobbers the target of a traverse, abort");
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</script>
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