4 files changed, 37 insertions, 0 deletions
diff --git a/test/win/CMakeLists.txt b/test/win/CMakeLists.txt
new file mode 100644
index 00000000..0ebdd7fe
--- /dev/null
+++ b/test/win/CMakeLists.txt
@@ -0,0 +1 @@
+add_subdirectory(graphics)
diff --git a/test/win/graphics/CMakeLists.txt b/test/win/graphics/CMakeLists.txt
new file mode 100644
index 00000000..c90537ac
--- /dev/null
+++ b/test/win/graphics/CMakeLists.txt
@@ -0,0 +1 @@
+add_subdirectory(direct)
diff --git a/test/win/graphics/direct/CMakeLists.txt b/test/win/graphics/direct/CMakeLists.txt
new file mode 100644
index 00000000..69e22ef7
--- /dev/null
+++ b/test/win/graphics/direct/CMakeLists.txt
@@ -0,0 +1,6 @@
+add_executable(cru_win_graphics_direct_test
+	ConvertTest.cpp
+)
+target_link_libraries(cru_win_graphics_direct_test PRIVATE cru_win_graphics_direct cru_test_base)
+
+gtest_discover_tests(cru_win_graphics_direct_test)
diff --git a/test/win/graphics/direct/ConvertTest.cpp b/test/win/graphics/direct/ConvertTest.cpp
new file mode 100644
index 00000000..f8f95dac
--- /dev/null
+++ b/test/win/graphics/direct/ConvertTest.cpp
@@ -0,0 +1,29 @@
+#include "cru/platform/Matrix.hpp"
+#include "cru/win/graphics/direct/ConvertUtil.hpp"
+
+#include <gtest/gtest.h>
+
+using cru::platform::Matrix;
+using cru::platform::graphics::win::direct::Convert;
+
+TEST(MatrixConvert, Rotation) {
+  auto matrix = Convert(Matrix::Rotation(90));
+
+  auto m = *D2D1::Matrix3x2F::ReinterpretBaseType(&matrix);
+
+  auto p = m.TransformPoint({1, 1});
+
+  ASSERT_FLOAT_EQ(p.x, -1);
+  ASSERT_FLOAT_EQ(p.y, 1);
+}
+
+TEST(MatrixConvert, RotationAndTranslation) {
+  auto matrix = Convert(Matrix::Rotation(90) * Matrix::Translation(1, 1));
+
+  auto m = *D2D1::Matrix3x2F::ReinterpretBaseType(&matrix);
+
+  auto p = m.TransformPoint({1, 1});
+
+  ASSERT_FLOAT_EQ(p.x, 0);
+  ASSERT_FLOAT_EQ(p.y, 2);
+}