1 files changed, 34 insertions, 0 deletions
diff --git a/browser/base/content/test/newtab/browser_newtab_bug991210.js b/browser/base/content/test/newtab/browser_newtab_bug991210.js
new file mode 100644
index 000000000..367c49f5c
--- /dev/null
+++ b/browser/base/content/test/newtab/browser_newtab_bug991210.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(function* () {
+  // turn off preload to ensure that a newtab page loads
+  yield pushPrefs(["browser.newtab.preload", false]);
+
+  // add a test provider that waits for load
+  let afterLoadProvider = {
+    getLinks: function(callback) {
+      this.callback = callback;
+    },
+    addObserver: function() {},
+  };
+  NewTabUtils.links.addProvider(afterLoadProvider);
+
+  // wait until about:newtab loads before calling provider callback
+  yield BrowserTestUtils.openNewForegroundTab(gBrowser, "about:newtab");
+
+  afterLoadProvider.callback([]);
+
+  yield ContentTask.spawn(gBrowser.selectedBrowser, {}, function* () {
+    let {_cellHeight, _cellWidth, node} = content.gGrid;
+    Assert.notEqual(_cellHeight, null, "grid has a computed cell height");
+    Assert.notEqual(_cellWidth, null, "grid has a computed cell width");
+    let {height, maxHeight, maxWidth} = node.style;
+    Assert.notEqual(height, "", "grid has a computed grid height");
+    Assert.notEqual(maxHeight, "", "grid has a computed grid max-height");
+    Assert.notEqual(maxWidth, "", "grid has a computed grid max-width");
+  });
+
+  // restore original state
+  NewTabUtils.links.removeProvider(afterLoadProvider);
+});