1 files changed, 116 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_accessibility_node_audit.js b/devtools/server/tests/browser/browser_accessibility_node_audit.js
new file mode 100644
index 0000000000..a3115a2846
--- /dev/null
+++ b/devtools/server/tests/browser/browser_accessibility_node_audit.js
@@ -0,0 +1,116 @@
+/* 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 functionality around audit for the AccessibleActor. This includes
+ * tests for the return value when calling the audit method, payload of the
+ * corresponding event as well as the AccesibleFront state being up to date.
+ */
+
+const {
+  accessibility: { AUDIT_TYPE, SCORES },
+} = require("resource://devtools/shared/constants.js");
+const EMPTY_AUDIT = Object.keys(AUDIT_TYPE).reduce((audit, key) => {
+  audit[key] = null;
+  return audit;
+}, {});
+
+const EXPECTED_CONTRAST_DATA = {
+  value: 21,
+  color: [0, 0, 0, 1],
+  backgroundColor: [255, 255, 255, 1],
+  isLargeText: true,
+  score: SCORES.AAA,
+};
+
+const EMPTY_CONTRAST_AUDIT = {
+  [AUDIT_TYPE.CONTRAST]: null,
+};
+
+const CONTRAST_AUDIT = {
+  [AUDIT_TYPE.CONTRAST]: EXPECTED_CONTRAST_DATA,
+};
+
+const FULL_AUDIT = {
+  ...EMPTY_AUDIT,
+  [AUDIT_TYPE.CONTRAST]: EXPECTED_CONTRAST_DATA,
+};
+
+async function checkAudit(a11yWalker, node, expected, options) {
+  const front = await a11yWalker.getAccessibleFor(node);
+  const [textLeafNode] = await front.children();
+
+  const onAudited = textLeafNode.once("audited");
+  const audit = await textLeafNode.audit(options);
+  const auditFromEvent = await onAudited;
+
+  Assert.deepEqual(audit, expected.audit, "Audit results are correct.");
+  Assert.deepEqual(textLeafNode.checks, expected.checks, "Checks are correct.");
+  Assert.deepEqual(
+    auditFromEvent,
+    expected.audit,
+    "Audit results from event are correct."
+  );
+}
+
+add_task(async function () {
+  const { target, walker, a11yWalker, parentAccessibility } =
+    await initAccessibilityFrontsForUrl(
+      MAIN_DOMAIN + "doc_accessibility_infobar.html"
+    );
+
+  const headerNode = await walker.querySelector(walker.rootNode, "#h1");
+  await checkAudit(
+    a11yWalker,
+    headerNode,
+    { audit: CONTRAST_AUDIT, checks: CONTRAST_AUDIT },
+    { types: [AUDIT_TYPE.CONTRAST] }
+  );
+  await checkAudit(a11yWalker, headerNode, {
+    audit: FULL_AUDIT,
+    checks: FULL_AUDIT,
+  });
+  await checkAudit(
+    a11yWalker,
+    headerNode,
+    { audit: CONTRAST_AUDIT, checks: FULL_AUDIT },
+    { types: [AUDIT_TYPE.CONTRAST] }
+  );
+  await checkAudit(
+    a11yWalker,
+    headerNode,
+    { audit: FULL_AUDIT, checks: FULL_AUDIT },
+    { types: [] }
+  );
+
+  const paragraphNode = await walker.querySelector(walker.rootNode, "#p");
+  await checkAudit(
+    a11yWalker,
+    paragraphNode,
+    { audit: EMPTY_CONTRAST_AUDIT, checks: EMPTY_CONTRAST_AUDIT },
+    { types: [AUDIT_TYPE.CONTRAST] }
+  );
+  await checkAudit(a11yWalker, paragraphNode, {
+    audit: EMPTY_AUDIT,
+    checks: EMPTY_AUDIT,
+  });
+  await checkAudit(
+    a11yWalker,
+    paragraphNode,
+    { audit: EMPTY_CONTRAST_AUDIT, checks: EMPTY_AUDIT },
+    { types: [AUDIT_TYPE.CONTRAST] }
+  );
+  await checkAudit(
+    a11yWalker,
+    paragraphNode,
+    { audit: EMPTY_AUDIT, checks: EMPTY_AUDIT },
+    { types: [] }
+  );
+
+  await waitForA11yShutdown(parentAccessibility);
+  await target.destroy();
+  gBrowser.removeCurrentTab();
+});