// Unit tests for GammaExpansionEffect.
-#include <math.h>
#include <GL/glew.h>
+#include <math.h>
#include "gamma_expansion_effect.h"
#include "gtest/gtest.h"
+#include "gtest/gtest-message.h"
#include "test_util.h"
TEST(GammaExpansionEffectTest, sRGB_KeyValues) {