Makes a window that has been resized to maximized bounds, then maximized and then restored shrink

ash/wm/window_state_unittest.cc

 // Copyright 2014 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 "ash/wm/window_state.h"
 
 #include "ash/screen_util.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_state.h"
@@ skipping 294 matching lines @@
   WindowState* window_state = GetWindowState(window.get());
   EXPECT_FALSE(window_state->IsMaximized());
   scoped_ptr<WindowState::State> old(window_state->SetStateObject(
       scoped_ptr<WindowState::State> (new AlwaysMaximizeTestState(
           window_state->GetStateType()))).Pass());
   EXPECT_TRUE(window_state->IsMaximized());
   window_state->SetStateObject(old.Pass());
   EXPECT_FALSE(window_state->IsMaximized());
 }
 
+// Tests that a window that had same bounds as the work area shrinks after the
+// window is maximized and then restored.
+TEST_F(WindowStateTest, RestoredWindowBoundsShrink) {
+  scoped_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
+  WindowState* window_state = GetWindowState(window.get());
+  EXPECT_FALSE(window_state->IsMaximized());
+  gfx::Rect work_area =
+      ash::Shell::GetScreen()->GetPrimaryDisplay().work_area();
+
+  window->SetBounds(work_area);
+  window_state->Maximize();
+  EXPECT_TRUE(window_state->IsMaximized());
+  EXPECT_EQ(work_area.ToString(), window->bounds().ToString());
+
+  window_state->Restore();
+  EXPECT_FALSE(window_state->IsMaximized());
+  EXPECT_NE(work_area.ToString(), window->bounds().ToString());
+  EXPECT_TRUE(work_area.Contains(window->bounds()));
+}
+
 // TODO(skuhne): Add more unit test to verify the correctness for the restore
 // operation.
 
 }  // namespace wm
 }  // namespace ash