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Diffstat (limited to 'devtools/server/tests/chrome/test_inspector-mutations-events.html')
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1 files changed, 187 insertions, 0 deletions
diff --git a/devtools/server/tests/chrome/test_inspector-mutations-events.html b/devtools/server/tests/chrome/test_inspector-mutations-events.html new file mode 100644 index 0000000000..b48952c4d9 --- /dev/null +++ b/devtools/server/tests/chrome/test_inspector-mutations-events.html @@ -0,0 +1,187 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=1157469 +--> +<head> + <meta charset="utf-8"> + <title>Test for Bug 1157469</title> + <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"> + <script type="application/javascript" src="inspector-helpers.js"></script> + <script type="application/javascript"> +"use strict"; + +window.onload = function() { + SimpleTest.waitForExplicitFinish(); + + const prevPrefValue = Services.prefs.getBoolPref("devtools.chrome.enabled"); + Services.prefs.setBoolPref("devtools.chrome.enabled", true); + + let inspectee = null; + let inspector = null; + let walker = null; + const eventListener1 = function() {}; + const eventListener2 = function() {}; + let eventNode1; + let eventNode2; + let eventFront1; + let eventFront2; + + addAsyncTest(async function setup() { + info("Setting up inspector and walker actors."); + const url = document.getElementById("inspectorContent").href; + const { target, doc } = await attachURL(url); + inspectee = doc; + inspector = await target.getFront("inspector"); + walker = inspector.walker; + + runNextTest(); + }); + + addAsyncTest(async function setupEventTest() { + eventNode1 = inspectee.querySelector("#a"); + eventNode2 = inspectee.querySelector("#b"); + + eventFront1 = await walker.querySelector(walker.rootNode, "#a"); + eventFront2 = await walker.querySelector(walker.rootNode, "#b"); + + runNextTest(); + }); + + addAsyncTest(async function testChangeEventListenerOnSingleNode() { + checkNodesHaveNoEventListener(); + + info("add event listener on a single node"); + eventNode1.addEventListener("click", eventListener1); + + let mutations = await waitForMutations(); + is(mutations.length, 1, "one mutation expected"); + is(mutations[0].target, eventFront1, "mutation targets eventFront1"); + is(mutations[0].type, "events", "mutation type is events"); + is(mutations[0].hasEventListeners, true, + "mutation target should have event listeners"); + is(eventFront1.hasEventListeners, true, "eventFront1 should have event listeners"); + + info("remove event listener on a single node"); + eventNode1.removeEventListener("click", eventListener1); + + mutations = await waitForMutations(); + is(mutations.length, 1, "one mutation expected"); + is(mutations[0].target, eventFront1, "mutation targets eventFront1"); + is(mutations[0].type, "events", "mutation type is events"); + is(mutations[0].hasEventListeners, false, + "mutation target should have no event listeners"); + is(eventFront1.hasEventListeners, false, + "eventFront1 should have no event listeners"); + + info("perform several event listener changes on a single node"); + eventNode1.addEventListener("click", eventListener1); + eventNode1.addEventListener("click", eventListener2); + eventNode1.removeEventListener("click", eventListener1); + eventNode1.removeEventListener("click", eventListener2); + + mutations = await waitForMutations(); + is(mutations.length, 1, "one mutation expected"); + is(mutations[0].target, eventFront1, "mutation targets eventFront1"); + is(mutations[0].type, "events", "mutation type is events"); + is(mutations[0].hasEventListeners, false, + "no event listener expected on mutation target"); + is(eventFront1.hasEventListeners, false, "no event listener expected on node"); + + runNextTest(); + }); + + addAsyncTest(async function testChangeEventsOnSeveralNodes() { + checkNodesHaveNoEventListener(); + + info("add event listeners on both nodes"); + eventNode1.addEventListener("click", eventListener1); + eventNode2.addEventListener("click", eventListener2); + + let mutations = await waitForMutations(); + is(mutations.length, 2, "two mutations expected, one for each modified node"); + // first mutation + is(mutations[0].target, eventFront1, "first mutation targets eventFront1"); + is(mutations[0].type, "events", "mutation type is events"); + is(mutations[0].hasEventListeners, true, + "mutation target should have event listeners"); + is(eventFront1.hasEventListeners, true, "eventFront1 should have event listeners"); + // second mutation + is(mutations[1].target, eventFront2, "second mutation targets eventFront2"); + is(mutations[1].type, "events", "mutation type is events"); + is(mutations[1].hasEventListeners, true, + "mutation target should have event listeners"); + is(eventFront2.hasEventListeners, true, "eventFront1 should have event listeners"); + + info("remove event listeners on both nodes"); + eventNode1.removeEventListener("click", eventListener1); + eventNode2.removeEventListener("click", eventListener2); + + mutations = await waitForMutations(); + is(mutations.length, 2, "one mutation registered for event listener change"); + // first mutation + is(mutations[0].target, eventFront1, "first mutation targets eventFront1"); + is(mutations[0].type, "events", "mutation type is events"); + is(mutations[0].hasEventListeners, false, + "mutation target should have no event listeners"); + is(eventFront1.hasEventListeners, false, + "eventFront2 should have no event listeners"); + // second mutation + is(mutations[1].target, eventFront2, "second mutation targets eventFront2"); + is(mutations[1].type, "events", "mutation type is events"); + is(mutations[1].hasEventListeners, false, + "mutation target should have no event listeners"); + is(eventFront2.hasEventListeners, false, + "eventFront2 should have no event listeners"); + + runNextTest(); + }); + + addAsyncTest(async function testRemoveMissingEvent() { + checkNodesHaveNoEventListener(); + + info("try to remove an event listener not previously added"); + eventNode1.removeEventListener("click", eventListener1); + + info("set any attribute on the node to trigger a mutation"); + eventNode1.setAttribute("data-attr", "somevalue"); + + const mutations = await waitForMutations(); + is(mutations.length, 1, "expect only one mutation"); + isnot(mutations.type, "events", "mutation type should not be events"); + + Services.prefs.setBoolPref("devtools.chrome.enabled", prevPrefValue); + runNextTest(); + }); + + function checkNodesHaveNoEventListener() { + is(eventFront1.hasEventListeners, false, + "eventFront1 hasEventListeners should be false"); + is(eventFront2.hasEventListeners, false, + "eventFront2 hasEventListeners should be false"); + } + + function waitForMutations() { + return new Promise(resolve => { + walker.once("mutations", mutations => { + resolve(mutations); + }); + }); + } + + runNextTest(); +}; + </script> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1157469">Mozilla Bug 1157469</a> +<a id="inspectorContent" target="_blank" href="inspector-traversal-data.html">Test Document</a> +<p id="display"></p> +<div id="content" style="display: none"> + +</div> +<pre id="test"> +</pre> +</body> +</html> |