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Diffstat (limited to '')
-rw-r--r-- | devtools/server/tests/browser/browser_accessibility_walker.js | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_accessibility_walker.js b/devtools/server/tests/browser/browser_accessibility_walker.js new file mode 100644 index 0000000000..282a49b19a --- /dev/null +++ b/devtools/server/tests/browser/browser_accessibility_walker.js @@ -0,0 +1,170 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +"use strict"; + +// Checks for the AccessibleWalkerActor + +add_task(async function () { + const { target, walker, a11yWalker, parentAccessibility } = + await initAccessibilityFrontsForUrl(MAIN_DOMAIN + "doc_accessibility.html"); + + ok(a11yWalker, "The AccessibleWalkerFront was returned"); + const rootNode = await walker.getRootNode(); + const a11yDoc = await a11yWalker.getAccessibleFor(rootNode); + ok(a11yDoc, "The AccessibleFront for root doc is created"); + + const children = await a11yWalker.children(); + is( + children.length, + 1, + "AccessibleWalker only has 1 child - root doc accessible" + ); + is( + a11yDoc, + children[0], + "Root accessible must be AccessibleWalker's only child" + ); + + const buttonNode = await walker.querySelector(walker.rootNode, "#button"); + const accessibleFront = await a11yWalker.getAccessibleFor(buttonNode); + + checkA11yFront(accessibleFront, { + name: "Accessible Button", + role: "button", + }); + + const ancestry = await a11yWalker.getAncestry(accessibleFront); + is(ancestry.length, 1, "Button is a direct child of a root document."); + is( + ancestry[0].accessible, + a11yDoc, + "Button's only ancestor is a root document" + ); + is( + ancestry[0].children.length, + 8, + "Root doc should have correct number of children" + ); + ok( + ancestry[0].children.includes(accessibleFront), + "Button accessible front is in root doc's children" + ); + + const browser = gBrowser.selectedBrowser; + + // Ensure name-change event is emitted by walker when cached accessible's name + // gets updated (via DOM manipularion). + await emitA11yEvent( + a11yWalker, + "name-change", + (front, parent) => { + checkA11yFront(front, { name: "Renamed" }, accessibleFront); + checkA11yFront(parent, {}, a11yDoc); + }, + () => + SpecialPowers.spawn(browser, [], () => + content.document + .getElementById("button") + .setAttribute("aria-label", "Renamed") + ) + ); + + // Ensure reorder event is emitted by walker when DOM tree changes. + let docChildren = await a11yDoc.children(); + is(docChildren.length, 8, "Root doc should have correct number of children"); + + await emitA11yEvent( + a11yWalker, + "reorder", + front => checkA11yFront(front, {}, a11yDoc), + () => + SpecialPowers.spawn(browser, [], () => { + const input = content.document.createElement("input"); + input.type = "text"; + input.title = "This is a tooltip"; + input.value = "New input"; + content.document.body.appendChild(input); + }) + ); + + docChildren = await a11yDoc.children(); + is(docChildren.length, 9, "Root doc should have correct number of children"); + + let shown = await a11yWalker.highlightAccessible(docChildren[0]); + ok(shown, "AccessibleHighlighter highlighted the node"); + + shown = await a11yWalker.highlightAccessible(a11yDoc); + ok(shown, "AccessibleHighlighter highlights the document correctly."); + await a11yWalker.unhighlight(); + + info("Checking AccessibleWalker picker functionality"); + ok(a11yWalker.pick, "AccessibleWalker pick method exists"); + ok(a11yWalker.pickAndFocus, "AccessibleWalker pickAndFocus method exists"); + ok(a11yWalker.cancelPick, "AccessibleWalker cancelPick method exists"); + + let onPickerEvent = a11yWalker.once("picker-accessible-hovered"); + await a11yWalker.pick(); + await BrowserTestUtils.synthesizeMouseAtCenter( + "#h1", + { type: "mousemove" }, + browser + ); + let acc = await onPickerEvent; + checkA11yFront(acc, { name: "Accessibility Test" }, docChildren[0]); + + onPickerEvent = a11yWalker.once("picker-accessible-previewed"); + await BrowserTestUtils.synthesizeMouseAtCenter( + "#h1", + { shiftKey: true }, + browser + ); + acc = await onPickerEvent; + checkA11yFront(acc, { name: "Accessibility Test" }, docChildren[0]); + + onPickerEvent = a11yWalker.once("picker-accessible-canceled"); + await BrowserTestUtils.synthesizeKey( + "VK_ESCAPE", + { type: "keydown" }, + browser + ); + await onPickerEvent; + + onPickerEvent = a11yWalker.once("picker-accessible-hovered"); + await a11yWalker.pick(); + await BrowserTestUtils.synthesizeMouseAtCenter( + "#h1", + { type: "mousemove" }, + browser + ); + await onPickerEvent; + + onPickerEvent = a11yWalker.once("picker-accessible-picked"); + await BrowserTestUtils.synthesizeMouseAtCenter("#h1", {}, browser); + acc = await onPickerEvent; + checkA11yFront(acc, { name: "Accessibility Test" }, docChildren[0]); + + await a11yWalker.cancelPick(); + + info("Checking tabbing order highlighter"); + let { elm, index } = await a11yWalker.showTabbingOrder(rootNode, 0); + isnot(!!elm, "No current element when at the end of the tab order"); + is(index, 3, "Current index is correct"); + await a11yWalker.hideTabbingOrder(); + + ({ elm, index } = await a11yWalker.showTabbingOrder(buttonNode, 0)); + isnot(!!elm, "No current element when at the end of the tab order"); + is(index, 2, "Current index is correct"); + await a11yWalker.hideTabbingOrder(); + + info( + "When targets follow the WindowGlobal lifecycle and handle only one document, " + + "only check that the panel refreshes correctly and emit its 'reloaded' event" + ); + await reloadBrowser(); + + await waitForA11yShutdown(parentAccessibility); + await target.destroy(); + gBrowser.removeCurrentTab(); +}); |