1 files changed, 75 insertions, 0 deletions
diff --git a/accessible/tests/browser/fission/browser_content_tree.js b/accessible/tests/browser/fission/browser_content_tree.js
new file mode 100644
index 0000000000..1592ae6a1a
--- /dev/null
+++ b/accessible/tests/browser/fission/browser_content_tree.js
@@ -0,0 +1,75 @@
+/* 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";
+
+/* import-globals-from ../../mochitest/role.js */
+loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });
+
+addAccessibleTask(
+  `<table id="table">
+    <tr>
+      <td>cell1</td>
+      <td>cell2</td>
+    </tr>
+  </table>
+  <ul id="ul">
+    <li id="li">item1</li>
+  </ul>`,
+  async function (browser, iframeDocAcc, contentDocAcc) {
+    ok(iframeDocAcc, "IFRAME document accessible is present");
+    (gIsRemoteIframe ? isnot : is)(
+      browser.browsingContext.currentWindowGlobal.osPid,
+      browser.browsingContext.children[0].currentWindowGlobal.osPid,
+      `Content and IFRAME documents are in ${
+        gIsRemoteIframe ? "separate processes" : "same process"
+      }.`
+    );
+
+    const tree = {
+      DOCUMENT: [
+        {
+          INTERNAL_FRAME: [
+            {
+              DOCUMENT: [
+                {
+                  TABLE: [
+                    {
+                      ROW: [
+                        { CELL: [{ TEXT_LEAF: [] }] },
+                        { CELL: [{ TEXT_LEAF: [] }] },
+                      ],
+                    },
+                  ],
+                },
+                {
+                  LIST: [
+                    {
+                      LISTITEM: [{ LISTITEM_MARKER: [] }, { TEXT_LEAF: [] }],
+                    },
+                  ],
+                },
+              ],
+            },
+          ],
+        },
+      ],
+    };
+    testAccessibleTree(contentDocAcc, tree);
+
+    const iframeAcc = contentDocAcc.getChildAt(0);
+    is(
+      iframeAcc.getChildAt(0),
+      iframeDocAcc,
+      "Document for the IFRAME matches IFRAME's first child."
+    );
+
+    is(
+      iframeDocAcc.parent,
+      iframeAcc,
+      "IFRAME document's parent matches the IFRAME."
+    );
+  },
+  { topLevel: false, iframe: true, remoteIframe: true }
+);