diff --git a/src/gfx/rect_unittest.cpp b/src/gfx/rect_unittest.cpp
new file mode 100644
index 000000000..9cb7e01ec
--- /dev/null
+++ b/src/gfx/rect_unittest.cpp
@@ -0,0 +1,58 @@
+// ASE gfx library
+// Copyright (C) 2001-2011  David Capello
+//
+// This source file is ditributed under a BSD-like license, please
+// read LICENSE.txt for more information.
+
+#include <gtest/gtest.h>
+
+#include "gfx/rect.h"
+#include "gfx/size.h"
+#include "gfx/border.h"
+
+using namespace std;
+using namespace gfx;
+
+ostream& operator<<(ostream& os, const Rect& rect)
+{
+  return os << "("
+	    << rect.x << ", "
+	    << rect.y << ", "
+	    << rect.w << ", "
+	    << rect.h << ")";
+}
+
+TEST(Rect, Ctor)
+{
+  EXPECT_EQ(Rect(0, 0, 0, 0), Rect());
+  EXPECT_EQ(10, Rect(10, 20, 30, 40).x);
+  EXPECT_EQ(20, Rect(10, 20, 30, 40).y);
+  EXPECT_EQ(30, Rect(10, 20, 30, 40).w);
+  EXPECT_EQ(40, Rect(10, 20, 30, 40).h);
+}
+
+TEST(Rect, Inflate)
+{
+  EXPECT_EQ(Rect(10, 20, 31, 42), Rect(10, 20, 30, 40).inflate(1, 2));
+  EXPECT_EQ(Rect(10, 20, 31, 42), Rect(10, 20, 30, 40).inflate(Size(1, 2)));
+}
+
+TEST(Rect, Enlarge)
+{
+  EXPECT_EQ(Rect(9, 19, 32, 42), Rect(10, 20, 30, 40).enlarge(1));
+  EXPECT_EQ(Rect(9, 18, 34, 46), Rect(10, 20, 30, 40).enlarge(Border(1, 2, 3, 4)));
+  EXPECT_EQ(Rect(9, 18, 34, 46), Rect(10, 20, 30, 40) + Border(1, 2, 3, 4));
+}
+
+TEST(Rect, Shrink)
+{
+  EXPECT_EQ(Rect(11, 21, 28, 38), Rect(10, 20, 30, 40).shrink(1));
+  EXPECT_EQ(Rect(11, 22, 26, 34), Rect(10, 20, 30, 40).shrink(Border(1, 2, 3, 4)));
+  EXPECT_EQ(Rect(11, 22, 26, 34), Rect(10, 20, 30, 40) - Border(1, 2, 3, 4));
+}
+
+int main(int argc, char** argv)
+{
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}