Function TEST

tensorflow/core/kernels/mfcc_test.cc:25–48

namespace tensorflow {

TEST(MfccTest, AgreesWithPythonGoldenValues) {
  Mfcc mfcc;
  std::vector<double> input;
  const int kSampleCount = 513;
  input.reserve(kSampleCount);
  for (int i = 0; i < kSampleCount; ++i) {
    input.push_back(i + 1);
  }

  ASSERT_TRUE(mfcc.Initialize(input.size(), 22050 /*sample rate*/));

  std::vector<double> output;
  mfcc.Compute(input, &output);

  std::vector<double> expected = {
      29.13970072, -6.41568601, -0.61903012, -0.96778652, -0.26819878,
      -0.40907028, -0.15614748, -0.23203119, -0.10481487, -0.1543029,
      -0.0769791,  -0.10806114, -0.06047613};

  ASSERT_EQ(expected.size(), output.size());
  for (int i = 0; i < output.size(); ++i) {
    EXPECT_NEAR(output[i], expected[i], 1e-04);
  }
}

TEST(MfccTest, AvoidsNansWithZeroInput) {
  Mfcc mfcc;