dispose-same-document.html (3102B)
1 <!doctype html> 2 <script src="/resources/testharness.js"></script> 3 <script src="/resources/testharnessreport.js"></script> 4 <script> 5 promise_test(async (t) => { 6 // Wait for after the load event so that the navigation doesn't get converted 7 // into a replace navigation. 8 await new Promise(r => window.onload = () => t.step_timeout(r, 0)); 9 let start_length = navigation.entries().length; 10 let start_index = navigation.currentEntry.index; 11 12 location.hash = "#1"; 13 location.hash = "#2"; 14 location.hash = "#3"; 15 16 assert_equals(navigation.entries().length, start_length + 3); 17 const [entry0, entry1, entry2, entry3] = navigation.entries().slice(start_index); 18 assert_equals((new URL(entry2.url)).hash, "#2"); 19 assert_equals((new URL(entry3.url)).hash, "#3"); 20 21 let dispose2Called = false; 22 entry2.ondispose = t.step_func(e => { 23 dispose2Called = true; 24 25 assert_equals(e.constructor, Event); 26 assert_equals(e.bubbles, false); 27 assert_equals(e.cancelable, false); 28 assert_equals(e.composed, false); 29 30 assert_array_equals( 31 navigation.entries().slice(start_index), 32 [entry0, entry1, navigation.currentEntry], 33 "entries() is updated during dispose for entry 2"); 34 assert_not_equals(navigation.currentEntry, entry1, "current entry must be updated during dispose for entry 3"); 35 assert_true(navigation.canGoBack, "canGoBack is still true during dispose for entry 2"); 36 assert_false(navigation.canGoForward, "canGoForward is still false during beforedispose for entry 2"); 37 assert_equals(navigation.transition, null, "transition during dispose for entry 2"); 38 assert_equals(location.hash, "#fork", "location.hash is updated during dispose for entry 2"); 39 }); 40 41 entry3.addEventListener("dispose", t.step_func_done(e => { 42 assert_true(dispose2Called, "dispose for entry 2 must have happened before entry 3"); 43 44 assert_array_equals( 45 navigation.entries().slice(start_index), 46 [entry0, entry1, navigation.currentEntry], 47 "entries() is updated during dispose for entry 3"); 48 assert_not_equals(navigation.currentEntry, entry1, "current entry must be updated during dispose for entry 3"); 49 assert_true(navigation.canGoBack, "canGoBack is still true during dispose for entry 3"); 50 assert_false(navigation.canGoForward, "canGoForward is still false during beforedispose for entry 3"); 51 assert_equals(navigation.transition, null, "transition during dispose for entry 2"); 52 assert_equals(location.hash, "#fork", "location.hash is updated during dispose for entry 3"); 53 })); 54 55 await navigation.traverseTo(entry1.key).committed; 56 57 navigation.navigate("#fork"); 58 59 assert_equals(navigation.entries().length, start_length + 2); 60 const [finalEntry0, finalEntry1, finalEntry2] = navigation.entries().slice(start_index); 61 assert_equals(finalEntry0, entry0); 62 assert_equals(finalEntry1, entry1); 63 assert_not_equals(finalEntry2, entry2); 64 assert_equals(navigation.currentEntry, finalEntry2); 65 assert_equals((new URL(finalEntry2.url)).hash, "#fork"); 66 }, "dispose events when forward-pruning same-document entries"); 67 </script>