1 files changed, 53 insertions, 0 deletions
diff --git a/toolkit/content/tests/browser/browser_default_image_filename_redirect.js b/toolkit/content/tests/browser/browser_default_image_filename_redirect.js
new file mode 100644
index 0000000000..a3fdd2d19e
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+++ b/toolkit/content/tests/browser/browser_default_image_filename_redirect.js
@@ -0,0 +1,53 @@
+/**
+ * TestCase for bug 1406253
+ * <https://bugzilla.mozilla.org/show_bug.cgi?id=1406253>
+ *
+ * Load firebird.png, redirect it to doggy.png, and verify the filename is
+ * doggy.png in file picker dialog.
+ */
+
+let MockFilePicker = SpecialPowers.MockFilePicker;
+MockFilePicker.init(window);
+add_task(async function () {
+  // This URL will redirect to doggy.png.
+  const URL_FIREBIRD =
+    "http://mochi.test:8888/browser/toolkit/content/tests/browser/firebird.png";
+
+  await BrowserTestUtils.withNewTab(URL_FIREBIRD, async function (browser) {
+    // Click image to show context menu.
+    let popupShownPromise = BrowserTestUtils.waitForEvent(
+      document,
+      "popupshown"
+    );
+    await BrowserTestUtils.synthesizeMouseAtCenter(
+      "img",
+      { type: "contextmenu", button: 2 },
+      browser
+    );
+    await popupShownPromise;
+
+    // Prepare mock file picker.
+    let showFilePickerPromise = new Promise(resolve => {
+      MockFilePicker.showCallback = fp => resolve(fp.defaultString);
+    });
+    registerCleanupFunction(function () {
+      MockFilePicker.cleanup();
+    });
+
+    // Select "Save Image As" option from context menu
+    var saveImageAsCommand = document.getElementById("context-saveimage");
+    saveImageAsCommand.doCommand();
+
+    let filename = await showFilePickerPromise;
+    is(filename, "doggy.png", "Verify image filename.");
+
+    // Close context menu.
+    let contextMenu = document.getElementById("contentAreaContextMenu");
+    let popupHiddenPromise = BrowserTestUtils.waitForEvent(
+      contextMenu,
+      "popuphidden"
+    );
+    contextMenu.hidePopup();
+    await popupHiddenPromise;
+  });
+});