1 files changed, 121 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_accessibility_simple.js b/devtools/server/tests/browser/browser_accessibility_simple.js
new file mode 100644
index 0000000000..59c065ce53
--- /dev/null
+++ b/devtools/server/tests/browser/browser_accessibility_simple.js
@@ -0,0 +1,121 @@
+/* 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";
+
+loader.lazyRequireGetter(
+  this,
+  "isWebRenderEnabled",
+  "devtools/server/actors/utils/accessibility",
+  true
+);
+
+const PREF_ACCESSIBILITY_FORCE_DISABLED = "accessibility.force_disabled";
+
+function checkAccessibilityState(accessibility, parentAccessibility, expected) {
+  const { enabled } = accessibility;
+  const { canBeDisabled, canBeEnabled } = parentAccessibility;
+  is(enabled, expected.enabled, "Enabled state is correct.");
+  is(canBeDisabled, expected.canBeDisabled, "canBeDisabled state is correct.");
+  is(canBeEnabled, expected.canBeEnabled, "canBeEnabled state is correct.");
+}
+
+// Simple checks for the AccessibilityActor and AccessibleWalkerActor
+
+add_task(async function() {
+  const {
+    walker: domWalker,
+    target,
+    accessibility,
+    parentAccessibility,
+    a11yWalker,
+  } = await initAccessibilityFrontsForUrl(
+    "data:text/html;charset=utf-8,<title>test</title><div></div>",
+    { enableByDefault: false }
+  );
+
+  ok(accessibility, "The AccessibilityFront was created");
+  ok(accessibility.getWalker, "The getWalker method exists");
+  ok(accessibility.getSimulator, "The getSimulator method exists");
+
+  ok(accessibility.accessibleWalkerFront, "Accessible walker was initialized");
+
+  is(
+    a11yWalker,
+    accessibility.accessibleWalkerFront,
+    "The AccessibleWalkerFront was returned"
+  );
+
+  const a11ySimulator = accessibility.simulatorFront;
+  const webRenderEnabled = isWebRenderEnabled(window);
+  is(
+    !!a11ySimulator,
+    webRenderEnabled,
+    `The SimulatorFront was${webRenderEnabled ? "" : " not"} returned.`
+  );
+  if (webRenderEnabled) {
+    ok(accessibility.simulatorFront, "Accessible simulator was initialized");
+    is(
+      a11ySimulator,
+      accessibility.simulatorFront,
+      "The SimulatorFront was returned"
+    );
+  }
+
+  checkAccessibilityState(accessibility, parentAccessibility, {
+    enabled: false,
+    canBeDisabled: true,
+    canBeEnabled: true,
+  });
+
+  info("Force disable accessibility service: updates canBeEnabled flag");
+  let onEvent = parentAccessibility.once("can-be-enabled-change");
+  Services.prefs.setIntPref(PREF_ACCESSIBILITY_FORCE_DISABLED, 1);
+  await onEvent;
+  checkAccessibilityState(accessibility, parentAccessibility, {
+    enabled: false,
+    canBeDisabled: true,
+    canBeEnabled: false,
+  });
+
+  info("Clear force disable accessibility service: updates canBeEnabled flag");
+  onEvent = parentAccessibility.once("can-be-enabled-change");
+  Services.prefs.clearUserPref(PREF_ACCESSIBILITY_FORCE_DISABLED);
+  await onEvent;
+  checkAccessibilityState(accessibility, parentAccessibility, {
+    enabled: false,
+    canBeDisabled: true,
+    canBeEnabled: true,
+  });
+
+  info("Initialize accessibility service");
+  const initEvent = accessibility.once("init");
+  await parentAccessibility.enable();
+  await waitForA11yInit();
+  await initEvent;
+  checkAccessibilityState(accessibility, parentAccessibility, {
+    enabled: true,
+    canBeDisabled: true,
+    canBeEnabled: true,
+  });
+
+  const rootNode = await domWalker.getRootNode();
+  const a11yDoc = await accessibility.accessibleWalkerFront.getAccessibleFor(
+    rootNode
+  );
+  ok(a11yDoc, "Accessible document actor is created");
+
+  info("Shutdown accessibility service");
+  const shutdownEvent = accessibility.once("shutdown");
+  await waitForA11yShutdown(parentAccessibility);
+  await shutdownEvent;
+  checkAccessibilityState(accessibility, parentAccessibility, {
+    enabled: false,
+    canBeDisabled: true,
+    canBeEnabled: true,
+  });
+
+  await target.destroy();
+  gBrowser.removeCurrentTab();
+});