Make video denoiser tests standalone, not using the VideoProcessingTest fixture.

webrtc/modules/video_processing/test/denoiser_test.cc

Index: webrtc/modules/video_processing/test/denoiser_test.cc
diff --git a/webrtc/modules/video_processing/test/denoiser_test.cc b/webrtc/modules/video_processing/test/denoiser_test.cc
index e6a7fa62d0d17fb114a979cbf49d55bc206ab90f..325efbee29c10affa788e223f26f1050fd97ca77 100644
--- a/webrtc/modules/video_processing/test/denoiser_test.cc
+++ b/webrtc/modules/video_processing/test/denoiser_test.cc
@@ -12,15 +12,15 @@
 
 #include <memory>
 
-#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
-#include "webrtc/modules/video_processing/include/video_processing.h"
-#include "webrtc/modules/video_processing/test/video_processing_unittest.h"
+#include "webrtc/common_video/include/video_frame_buffer.h"
 #include "webrtc/modules/video_processing/video_denoiser.h"
+#include "webrtc/test/gtest.h"
 #include "webrtc/test/frame_utils.h"
+#include "webrtc/test/testsupport/fileutils.h"
 
 namespace webrtc {
 
-TEST_F(VideoProcessingTest, CopyMem) {
+TEST(VideoDenoiserTest, CopyMem) {
   std::unique_ptr<DenoiserFilter> df_c(DenoiserFilter::Create(false, nullptr));
   std::unique_ptr<DenoiserFilter> df_sse_neon(
       DenoiserFilter::Create(true, nullptr));
@@ -40,7 +40,7 @@ TEST_F(VideoProcessingTest, CopyMem) {
   EXPECT_EQ(0, memcmp(src, dst, 16 * 16));
 }
 
-TEST_F(VideoProcessingTest, Variance) {
+TEST(VideoDenoiserTest, Variance) {
   std::unique_ptr<DenoiserFilter> df_c(DenoiserFilter::Create(false, nullptr));
   std::unique_ptr<DenoiserFilter> df_sse_neon(
       DenoiserFilter::Create(true, nullptr));
@@ -64,7 +64,7 @@ TEST_F(VideoProcessingTest, Variance) {
   EXPECT_EQ(var, df_sse_neon->Variance16x8(src, 16, dst, 16, &sse));
 }
 
-TEST_F(VideoProcessingTest, MbDenoise) {
+TEST(VideoDenoiserTest, MbDenoise) {
   std::unique_ptr<DenoiserFilter> df_c(DenoiserFilter::Create(false, nullptr));
   std::unique_ptr<DenoiserFilter> df_sse_neon(
       DenoiserFilter::Create(true, nullptr));
@@ -125,9 +125,16 @@ TEST_F(VideoProcessingTest, MbDenoise) {
   EXPECT_EQ(COPY_BLOCK, decision);
 }
 
-// TODO(nisse): Refactor to not use test fixture. Can use some static
-// helper method to open the input file.
-TEST_F(VideoProcessingTest, Denoiser) {
+TEST(VideoDenoiserTest, Denoiser) {
+  const int kWidth = 352;
+  const int kHeight = 288;
+
+  const std::string video_file =
+      webrtc::test::ResourcePath("foreman_cif", "yuv");
+  FILE* source_file = fopen(video_file.c_str(), "rb");
+  ASSERT_TRUE(source_file != nullptr)
+      << "Cannot open source file: " << video_file;
+
   // Used in swap buffer.
   int denoised_frame_toggle = 0;
   // Create pure C denoiser.
@@ -141,7 +148,7 @@ TEST_F(VideoProcessingTest, Denoiser) {
 
   for (;;) {
     rtc::scoped_refptr<VideoFrameBuffer> video_frame_buffer(
-        test::ReadI420Buffer(width_, height_, source_file_));
+        test::ReadI420Buffer(kWidth, kHeight, source_file));
     if (!video_frame_buffer)
       break;
 
@@ -169,7 +176,7 @@ TEST_F(VideoProcessingTest, Denoiser) {
     // Denoising results should be the same for C and SSE/NEON denoiser.
     ASSERT_TRUE(test::FrameBufsEqual(*p_denoised_c, *p_denoised_sse_neon));
   }
-  ASSERT_NE(0, feof(source_file_)) << "Error reading source file";
+  ASSERT_NE(0, feof(source_file)) << "Error reading source file";
 }
 
 }  // namespace webrtc