1 files changed, 20 insertions, 0 deletions
diff --git a/toolkit/components/thumbnails/test/browser_thumbnails_bg_basic.js b/toolkit/components/thumbnails/test/browser_thumbnails_bg_basic.js
new file mode 100644
index 000000000..027e0bfb7
--- /dev/null
+++ b/toolkit/components/thumbnails/test/browser_thumbnails_bg_basic.js
@@ -0,0 +1,20 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function* runTests() {
+  let url = "http://www.example.com/";
+  ok(!thumbnailExists(url), "Thumbnail should not be cached yet.");
+
+  let capturePromise = new Promise(resolve => {
+    bgAddPageThumbObserver(url).then(() => {
+      ok(true, `page-thumbnail created for ${url}`);
+      resolve();
+    });
+  });
+  let capturedURL = yield bgCapture(url);
+  is(capturedURL, url, "Captured URL should be URL passed to capture");
+  yield capturePromise;
+
+  ok(thumbnailExists(url), "Thumbnail should be cached after capture");
+  removeThumbnail(url);
+}