// Unit tests for ResampleEffect.
-#include "test_util.h"
+#include <math.h>
+#include <iomanip>
+
+#include "effect_chain.h"
+#include "flat_input.h"
#include "gtest/gtest.h"
+#include "image_format.h"
#include "resample_effect.h"
-#include "flat_input.h"
+#include "test_util.h"
namespace {