Fix some issues compiling tests under MSVC/Windows.

  - MSVC complains about "a parenthesized type followed by an initializer list is a non-standard explicit type conversion syntax".
  - MSVC complains when calling `set_*` on a proto bytes field with an `std::array` iterator.
  - Avoid implicit converstion of filesystem::path to string in tests.

PiperOrigin-RevId: 671051666

iamf/cli/proto_to_obu/tests/codec_config_generator_test.cc

@@ -763,7 +763,7 @@ TEST_F(CodecConfigGeneratorTest, ObeysInvalidFlacStreamInfo) {
   stream_info_metadata->set_minimum_frame_size(kInvalidMinimumFrameSize);
   stream_info_metadata->set_maximum_frame_size(kInvalidMaximumFrameSize);
   stream_info_metadata->set_number_of_channels(kInvalidNumberOfChannels);
-  stream_info_metadata->set_md5_signature(kInvalidMd5Signature.begin(),
+  stream_info_metadata->set_md5_signature(kInvalidMd5Signature.data(),
                                           kInvalidMd5Signature.size());
 
   const auto output_obus = InitAndGenerate();
@@ -801,7 +801,7 @@ TEST_F(CodecConfigGeneratorTest, ConfiguresFlacWithExtraBlocks) {
           .mutable_codec_config()
           ->mutable_decoder_config_flac()
           ->add_metadata_blocks()));
-  const auto kExpectedPictureBlock = (FlacMetadataBlock){
+  const auto kExpectedPictureBlock = FlacMetadataBlock{
       .header = {.last_metadata_block_flag = true,
                  .block_type = FlacMetaBlockHeader::kFlacPicture,
                  .metadata_data_block_length = 3},

iamf/cli/tests/BUILD

@@ -175,6 +175,7 @@ cc_test(
     name = "iamf_components_test",
     srcs = ["iamf_components_test.cc"],
     deps = [
+        ":cli_test_utils",
         "//iamf/cli:iamf_components",
         "//iamf/cli/proto:test_vector_metadata_cc_proto",
         "//iamf/cli/proto:user_metadata_cc_proto",

iamf/cli/tests/iamf_components_test.cc

@@ -13,12 +13,12 @@
 #include "iamf/cli/iamf_components.h"
 
 #include <cstdint>
-#include <filesystem>
 #include <optional>
 
 #include "gtest/gtest.h"
 #include "iamf/cli/proto/test_vector_metadata.pb.h"
 #include "iamf/cli/proto/user_metadata.pb.h"
+#include "iamf/cli/tests/cli_test_utils.h"
 #include "src/google/protobuf/text_format.h"
 
 namespace iamf_tools {
@@ -36,8 +36,8 @@ TEST(IamfComponentsTest, CreateMixPresentationFinalizerReturnsNonNull) {
 
 TEST(IamfComponentsTest,
      CreateObuSequencersReturnsNonNullAndNonZeroObuSequencers) {
-  auto obu_sequencers =
-      CreateObuSequencers({}, std::filesystem::temp_directory_path(), false);
+  auto obu_sequencers = CreateObuSequencers(
+      {}, GetAndCreateOutputDirectory("iamf_directory"), false);
 
   EXPECT_FALSE(obu_sequencers.empty());
   for (auto& obu_sequencer : obu_sequencers) {
@@ -57,7 +57,7 @@ TEST(IamfComponentsTest, CanBeConfiguredWithFixedSizeLebGenerator) {
             true);
 
   auto obu_sequencers = CreateObuSequencers(
-      user_metadata, std::filesystem::temp_directory_path(), false);
+      user_metadata, GetAndCreateOutputDirectory("iamf_directory"), false);
 
   EXPECT_FALSE(obu_sequencers.empty());
   for (auto& obu_sequencer : obu_sequencers) {
@@ -84,7 +84,7 @@ TEST(IamfComponentsTest, ReturnsEmptyListWhenLebGeneratorIsInvalid) {
             true);
 
   auto obu_sequencers = CreateObuSequencers(
-      user_metadata, std::filesystem::temp_directory_path(), false);
+      user_metadata, GetAndCreateOutputDirectory("iamf_directory"), false);
 
   EXPECT_TRUE(obu_sequencers.empty());
 }

iamf/cli/tests/wav_reader_test.cc

@@ -88,9 +88,10 @@ TEST(CreateFromFile, SucceedsOnValidAdmFile) {
 }
 
 TEST(CreateFromFile, SucceedsOnValidWavFile) {
-  const auto input_wav_file = std::filesystem::current_path() /
-                              std::string("iamf/cli/testdata/") /
-                              "stereo_8_samples_48khz_s16le.wav";
+  const auto input_wav_file =
+      (std::filesystem::current_path() / std::string("iamf/cli/testdata/") /
+       "stereo_8_samples_48khz_s16le.wav")
+          .string();
   ASSERT_TRUE(std::filesystem::exists(input_wav_file));
 
   EXPECT_THAT(
@@ -100,9 +101,10 @@ TEST(CreateFromFile, SucceedsOnValidWavFile) {
 
 TEST(CreateFromFile, FailsWhenNumSamplesPerFrameIsZero) {
   const size_t kInvalidNumSamplesPerFrame = 0;
-  const auto input_wav_file = std::filesystem::current_path() /
-                              std::string("iamf/cli/testdata/") /
-                              "stereo_8_samples_48khz_s16le.wav";
+  const auto input_wav_file =
+      (std::filesystem::current_path() / std::string("iamf/cli/testdata/") /
+       "stereo_8_samples_48khz_s16le.wav")
+          .string();
   ASSERT_TRUE(std::filesystem::exists(input_wav_file));
 
   EXPECT_FALSE(
@@ -131,8 +133,9 @@ TEST(CreateFromFile, FailsOnNonWavFile) {
 
 WavReader InitAndValidate(const std::filesystem::path& filename,
                           const size_t num_samples_per_frame) {
-  const auto input_wav_file = std::filesystem::current_path() /
-                              std::string("iamf/cli/testdata/") / filename;
+  const auto input_wav_file = (std::filesystem::current_path() /
+                               std::string("iamf/cli/testdata/") / filename)
+                                  .string();
   auto wav_reader =
       WavReader::CreateFromFile(input_wav_file, num_samples_per_frame);
   EXPECT_THAT(wav_reader, IsOk());

iamf/cli/tests/wav_sample_provider_test.cc

@@ -68,9 +68,10 @@ void InitializeTestData(
                                           audio_elements);
 }
 
-std::filesystem::path GetInputWavDir() {
+std::string GetInputWavDir() {
   static const auto input_wav_dir =
-      std::filesystem::current_path() / std::string("iamf/cli/testdata");
+      (std::filesystem::current_path() / std::string("iamf/cli/testdata"))
+          .string();
   return input_wav_dir;
 }