1 files changed, 41 insertions, 0 deletions
diff --git a/browser/components/sessionstore/test/browser_694378.js b/browser/components/sessionstore/test/browser_694378.js
new file mode 100644
index 0000000000..fc6619b9ab
--- /dev/null
+++ b/browser/components/sessionstore/test/browser_694378.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test Summary:
+// 1.  call ss.setWindowState with a broken state
+// 1a. ensure that it doesn't throw.
+
+add_task(async function test_brokenWindowState() {
+  let brokenState = {
+    windows: [
+      {
+        tabs: [
+          { entries: [{ url: "about:mozilla", triggeringPrincipal_base64 }] },
+        ],
+      },
+    ],
+    selectedWindow: 2,
+  };
+
+  let gotError = false;
+  try {
+    await setWindowState(window, brokenState, true);
+  } catch (ex) {
+    gotError = true;
+    info(ex);
+  }
+
+  ok(!gotError, "ss.setWindowState did not throw an error");
+
+  // Make sure that we reset the state. Use a full state just in case things get crazy.
+  let blankState = {
+    windows: [
+      {
+        tabs: [
+          { entries: [{ url: "about:blank", triggeringPrincipal_base64 }] },
+        ],
+      },
+    ],
+  };
+  await promiseBrowserState(blankState);
+});