1 files changed, 107 insertions, 0 deletions
diff --git a/devtools/client/accessibility/test/browser/browser_accessibility_reload.js b/devtools/client/accessibility/test/browser/browser_accessibility_reload.js
new file mode 100644
index 0000000000..c4ffdf30dd
--- /dev/null
+++ b/devtools/client/accessibility/test/browser/browser_accessibility_reload.js
@@ -0,0 +1,107 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_URI_1 = `<html>
+  <head>
+    <meta charset="utf-8"/>
+    <title>Accessibility Panel Test</title>
+  </head>
+  <body>
+    <h1>Top level header</h1>
+    <p>This is a paragraph.</p>
+  </body>
+</html>`;
+
+const TEST_URI_2 = `<html>
+  <head>
+    <meta charset="utf-8"/>
+    <title>Navigation Accessibility Panel</title>
+  </head>
+  <body></body>
+</html>`;
+
+/**
+ * Test data has the format of:
+ * {
+ *   desc     {String}    description for better logging
+ *   setup   {Function}  An optional setup that needs to be performed before
+ *                        the state of the tree and the sidebar can be checked.
+ *   expected {JSON}      An expected states for the tree and the sidebar.
+ * }
+ */
+const tests = [
+  {
+    desc: "Test the initial accessibility tree state after first row is expanded.",
+    setup: async ({ doc }) => toggleRow(doc, 0),
+    expected: {
+      tree: [
+        {
+          role: "document",
+          name: `"Accessibility Panel Test"`,
+        },
+        {
+          role: "heading",
+          name: `"Top level header"`,
+        },
+        {
+          role: "paragraph",
+          name: `""`,
+        },
+      ],
+      sidebar: {
+        name: "Accessibility Panel Test",
+        role: "document",
+      },
+    },
+  },
+  {
+    desc: "Reload the page.",
+    setup: async ({ panel }) => {
+      const onReloaded = panel.once("reloaded");
+      panel.accessibilityProxy.commands.targetCommand.reloadTopLevelTarget();
+      await onReloaded;
+    },
+    expected: {
+      tree: [
+        {
+          role: "document",
+          name: `"Accessibility Panel Test"`,
+        },
+      ],
+      sidebar: {
+        name: "Accessibility Panel Test",
+        role: "document",
+      },
+    },
+  },
+  {
+    desc: "Navigate to a new page.",
+    setup: async () => {
+      // `navigate` waits for the "reloaded" event so we don't need to do it explicitly here
+      await navigateTo(buildURL(TEST_URI_2));
+    },
+    expected: {
+      tree: [
+        {
+          role: "document",
+          name: `"Navigation Accessibility Panel"`,
+        },
+      ],
+      sidebar: {
+        name: "Navigation Accessibility Panel",
+        role: "document",
+      },
+    },
+  },
+];
+
+/**
+ * Simple test that checks content of the Accessibility panel tree on reload.
+ */
+addA11yPanelTestsTask(
+  tests,
+  TEST_URI_1,
+  "Test Accessibility panel tree on reload."
+);