1 files changed, 54 insertions, 0 deletions
diff --git a/toolkit/components/reader/test/browser_drag_url_readerMode.js b/toolkit/components/reader/test/browser_drag_url_readerMode.js
new file mode 100644
index 0000000000..e8a157c527
--- /dev/null
+++ b/toolkit/components/reader/test/browser_drag_url_readerMode.js
@@ -0,0 +1,54 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_PATH = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "http://example.com"
+);
+
+add_task(async function test_readerModeURLDrag() {
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: TEST_PATH + "readerModeArticle.html",
+    },
+
+    async browser => {
+      let readerButton = document.getElementById("reader-mode-button");
+      await TestUtils.waitForCondition(
+        () => !readerButton.hidden,
+        "Reader mode button should become visible"
+      );
+
+      is_element_visible(
+        readerButton,
+        "Reader mode button is present on a reader-able page"
+      );
+
+      // Switch page into reader mode.
+      let promiseTabLoad = BrowserTestUtils.browserLoaded(browser);
+      readerButton.click();
+      await promiseTabLoad;
+      let urlbar = document.getElementById("urlbar-input");
+      let readerUrl = gBrowser.selectedBrowser.currentURI.spec;
+      ok(
+        readerUrl.startsWith("about:reader"),
+        "about:reader loaded after clicking reader mode button"
+      );
+
+      let dataTran = new DataTransfer();
+      let urlEvent = new DragEvent("dragstart", { dataTransfer: dataTran });
+      let oldUrl = TEST_PATH + "readerModeArticle.html";
+      let urlBarContainer = document.getElementById("urlbar-input-container");
+      urlBarContainer.click();
+      urlbar.dispatchEvent(urlEvent);
+
+      let newUrl = urlEvent.dataTransfer.getData("text/plain");
+      ok(!newUrl.includes("about:reader"), "URL does not contain about:reader");
+
+      Assert.equal(newUrl, oldUrl, "URL is the same");
+    }
+  );
+});