}
  return nullptr;
}

TEST_F(QuantizeWeightsTest, QuantizationSucceeds) {
  LoadBasicModel();
  flatbuffers::FlatBufferBuilder builder;
  auto status = QuantizeWeights(&builder, model_, 0);
  EXPECT_EQ(status, kTfLiteOk);

  const uint8_t* buffer = builder.GetBufferPointer();
  const Model* output_model = GetModel(buffer);
  ASSERT_TRUE(output_model);
}

TEST_F(QuantizeWeightsTest, QuantizationFails) {

        configurationCacheRunLenient()

        then: "cache entry is reused"
        configurationCache.assertStateLoaded()

        when: "a file is created in the directory"
        assert new File(accessedFile, "test1").createNewFile()
        configurationCacheRunLenient()

        then: "the cache entry is invalidated and the change is reported"
        configurationCache.assertStateStored()

  // Due to the shared test of this infrastructure, we just need to make sure
  // that the dumped file size is greater than what was originally inside
  // the test directory.
  TF_ASSERT_OK(env->GetChildren(test_dir, &files));
  EXPECT_THAT(files.size(), ::testing::Gt(original_files_size));
  setenv("TF_DUMP_GRAPH_PREFIX", test_dir.c_str(), /*overwrite=*/0);
}