1 files changed, 116 insertions, 0 deletions
diff --git a/accessible/tests/browser/fission/browser_reframe_visibility.js b/accessible/tests/browser/fission/browser_reframe_visibility.js
new file mode 100644
index 0000000000..8aee02037c
--- /dev/null
+++ b/accessible/tests/browser/fission/browser_reframe_visibility.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";
+
+/* import-globals-from ../../mochitest/states.js */
+/* import-globals-from ../../mochitest/role.js */
+loadScripts({ name: "states.js", dir: MOCHITESTS_DIR });
+loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });
+
+addAccessibleTask(
+  `<input id="textbox" value="hello"/>`,
+  async function (browser, iframeDocAcc, contentDocAcc) {
+    info(
+      "Check that the IFRAME and the IFRAME document are accessible initially."
+    );
+    let iframeAcc = findAccessibleChildByID(contentDocAcc, DEFAULT_IFRAME_ID);
+    ok(!isDefunct(iframeAcc), "IFRAME should be accessible");
+    ok(!isDefunct(iframeDocAcc), "IFRAME document should be accessible");
+
+    info(
+      "Hide the IFRAME and check that it's gone along with the IFRAME document."
+    );
+    let onEvents = waitForEvent(EVENT_REORDER, contentDocAcc);
+    await SpecialPowers.spawn(browser, [DEFAULT_IFRAME_ID], contentId => {
+      content.document.getElementById(contentId).style.display = "none";
+    });
+    await onEvents;
+
+    ok(
+      isDefunct(iframeAcc),
+      "IFRAME accessible should be defunct when hidden."
+    );
+    if (gIsRemoteIframe) {
+      ok(
+        !isDefunct(iframeDocAcc),
+        "IFRAME document's accessible is not defunct when the IFRAME is hidden and fission is enabled."
+      );
+    } else {
+      ok(
+        isDefunct(iframeDocAcc),
+        "IFRAME document's accessible is defunct when the IFRAME is hidden and fission is not enabled."
+      );
+    }
+    ok(
+      !findAccessibleChildByID(contentDocAcc, DEFAULT_IFRAME_ID),
+      "No accessible for an IFRAME present."
+    );
+    ok(
+      !findAccessibleChildByID(contentDocAcc, DEFAULT_IFRAME_DOC_BODY_ID),
+      "No accessible for the IFRAME document present."
+    );
+
+    info(
+      "Show the IFRAME and check that a new accessible is created for it as " +
+        "well as the IFRAME document."
+    );
+
+    const events = [[EVENT_REORDER, contentDocAcc]];
+    if (!gIsRemoteIframe) {
+      events.push([
+        EVENT_STATE_CHANGE,
+        event => {
+          const scEvent = event.QueryInterface(nsIAccessibleStateChangeEvent);
+          const id = getAccessibleDOMNodeID(event.accessible);
+          return (
+            id === DEFAULT_IFRAME_DOC_BODY_ID &&
+            scEvent.state === STATE_BUSY &&
+            scEvent.isEnabled === false
+          );
+        },
+      ]);
+    }
+    onEvents = waitForEvents(events);
+    await SpecialPowers.spawn(browser, [DEFAULT_IFRAME_ID], contentId => {
+      content.document.getElementById(contentId).style.display = "block";
+    });
+    await onEvents;
+
+    iframeAcc = findAccessibleChildByID(contentDocAcc, DEFAULT_IFRAME_ID);
+    const newiframeDocAcc = iframeAcc.firstChild;
+
+    ok(!isDefunct(iframeAcc), "IFRAME should be accessible");
+    is(iframeAcc.childCount, 1, "IFRAME accessible should have a single child");
+    ok(newiframeDocAcc, "IFRAME document exists");
+    ok(!isDefunct(newiframeDocAcc), "IFRAME document should be accessible");
+    if (gIsRemoteIframe) {
+      ok(
+        !isDefunct(iframeDocAcc),
+        "Original IFRAME document accessible should not be defunct when fission is enabled."
+      );
+      is(
+        iframeAcc.firstChild,
+        iframeDocAcc,
+        "Existing accessible is used for a IFRAME document."
+      );
+    } else {
+      ok(
+        isDefunct(iframeDocAcc),
+        "Original IFRAME document accessible should be defunct when fission is not enabled."
+      );
+      isnot(
+        iframeAcc.firstChild,
+        iframeDocAcc,
+        "A new accessible is created for a IFRAME document."
+      );
+    }
+    is(
+      iframeAcc.firstChild,
+      newiframeDocAcc,
+      "A new accessible for a IFRAME document is the child of the IFRAME accessible"
+    );
+  },
+  { topLevel: false, iframe: true, remoteIframe: true }
+);