1 files changed, 77 insertions, 0 deletions
diff --git a/chrome/browser/gtk/tabs/tab_renderer_gtk_unittest.cc b/chrome/browser/gtk/tabs/tab_renderer_gtk_unittest.cc
new file mode 100644
index 0000000..0304d26
--- /dev/null
+++ b/chrome/browser/gtk/tabs/tab_renderer_gtk_unittest.cc
@@ -0,0 +1,77 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/gtk/tabs/tab_renderer_gtk.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+typedef TabRendererGtk::LoadingAnimation LoadingAnimation;
+
+const int kTestLoadingAnimationFrameCount = 10;
+const int kTestWaitingAnimationFrameCount = 40;
+const int kTestWaitingToLoadingFrameCountRatio = 4;
+
+const LoadingAnimation::Data kMockAnimationData = {
+  NULL,  // waiting_animation_frames
+  NULL,  // loading_animation_frames
+  kTestLoadingAnimationFrameCount,
+  kTestWaitingAnimationFrameCount,
+  kTestWaitingToLoadingFrameCountRatio,
+};
+
+TEST(LoadingAnimationTest, InitialState) {
+  LoadingAnimation loading_animation(&kMockAnimationData);
+  EXPECT_EQ(TabRendererGtk::ANIMATION_NONE,
+            loading_animation.animation_state());
+  EXPECT_EQ(0, loading_animation.animation_frame());
+}
+
+TEST(LoadingAnimationTest, AdvanceWaitingFrames) {
+  LoadingAnimation loading_animation(&kMockAnimationData);
+  loading_animation.ValidateLoadingAnimation(TabRendererGtk::ANIMATION_WAITING);
+  EXPECT_EQ(TabRendererGtk::ANIMATION_WAITING,
+            loading_animation.animation_state());
+  EXPECT_EQ(1, loading_animation.animation_frame());
+  loading_animation.ValidateLoadingAnimation(TabRendererGtk::ANIMATION_WAITING);
+  EXPECT_EQ(TabRendererGtk::ANIMATION_WAITING,
+            loading_animation.animation_state());
+  EXPECT_EQ(2, loading_animation.animation_frame());
+
+  for (int i = 2; i < kTestWaitingAnimationFrameCount - 1; ++i) {
+    loading_animation.ValidateLoadingAnimation(
+        TabRendererGtk::ANIMATION_WAITING);
+  }
+  EXPECT_EQ(TabRendererGtk::ANIMATION_WAITING,
+            loading_animation.animation_state());
+  EXPECT_EQ(kTestWaitingAnimationFrameCount - 1,
+            loading_animation.animation_frame());
+
+  loading_animation.ValidateLoadingAnimation(TabRendererGtk::ANIMATION_WAITING);
+  EXPECT_EQ(TabRendererGtk::ANIMATION_WAITING,
+            loading_animation.animation_state());
+  EXPECT_EQ(0, loading_animation.animation_frame()) <<
+            "The animation frame should have wrapped around to 0.";
+}
+
+TEST(LoadingAnimationTest, AdvanceFromWaitingToLoading) {
+  LoadingAnimation loading_animation(&kMockAnimationData);
+  for (int i = 0; i < 2 * kTestWaitingToLoadingFrameCountRatio; ++i) {
+    loading_animation.ValidateLoadingAnimation(
+        TabRendererGtk::ANIMATION_WAITING);
+  }
+  EXPECT_EQ(TabRendererGtk::ANIMATION_WAITING,
+            loading_animation.animation_state());
+  EXPECT_EQ(2 * kTestWaitingToLoadingFrameCountRatio,
+            loading_animation.animation_frame());
+
+  loading_animation.ValidateLoadingAnimation(TabRendererGtk::ANIMATION_LOADING);
+  EXPECT_EQ(TabRendererGtk::ANIMATION_LOADING,
+            loading_animation.animation_state());
+  EXPECT_EQ(kTestLoadingAnimationFrameCount - 1,
+            loading_animation.animation_frame());
+}
+
+}  // namespace