Mojo C++ bindings: switch components/filesystem mojom target to use STL types.

components/filesystem/file_impl_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
 #include <vector>
 
 #include "base/files/file.h"
@@ skipping 25 matching lines @@
 
     // Write to it.
     std::vector<uint8_t> bytes_to_write;
     bytes_to_write.push_back(static_cast<uint8_t>('h'));
     bytes_to_write.push_back(static_cast<uint8_t>('e'));
     bytes_to_write.push_back(static_cast<uint8_t>('l'));
     bytes_to_write.push_back(static_cast<uint8_t>('l'));
     bytes_to_write.push_back(static_cast<uint8_t>('o'));
     error = mojom::FileError::FAILED;
     uint32_t num_bytes_written = 0;
-    handled =
-        file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                    mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+    handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                          &error, &num_bytes_written);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
     EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
 
     // Close it.
     error = mojom::FileError::FAILED;
     handled = file->Close((&error));
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
   }
 
   // Rename it.
   error = mojom::FileError::FAILED;
   handled = directory->Rename("my_file", "your_file", &error);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
 
   {
     // Open my_file again.
     mojom::FilePtr file;
     error = mojom::FileError::FAILED;
     bool handled =
         directory->OpenFile("your_file", GetProxy(&file),
                             mojom::kFlagRead | mojom::kFlagOpen, &error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
 
     // Read from it.
-    mojo::Array<uint8_t> bytes_read;
+    base::Optional<std::vector<uint8_t>> bytes_read;
     error = mojom::FileError::FAILED;
     handled = file->Read(3, 1, mojom::Whence::FROM_BEGIN, &error, &bytes_read);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
-    ASSERT_EQ(3u, bytes_read.size());
-    EXPECT_EQ(static_cast<uint8_t>('e'), bytes_read[0]);
-    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read[1]);
-    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read[2]);
+    ASSERT_TRUE(bytes_read.has_value());
+    ASSERT_EQ(3u, bytes_read.value().size());
+    EXPECT_EQ(static_cast<uint8_t>('e'), bytes_read.value()[0]);
+    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read.value()[1]);
+    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read.value()[2]);
   }
 
   // TODO(vtl): Test read/write offset options.
 }
 
 TEST_F(FileImplTest, CantWriteInReadMode) {
   mojom::DirectoryPtr directory;
   GetTemporaryRoot(&directory);
   mojom::FileError error;
 
@@ skipping 10 matching lines @@
     error = mojom::FileError::FAILED;
     bool handled =
         directory->OpenFile("my_file", GetProxy(&file),
                             mojom::kFlagWrite | mojom::kFlagCreate, &error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
 
     // Write to it.
     error = mojom::FileError::FAILED;
     uint32_t num_bytes_written = 0;
-    handled =
-        file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                    mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+    handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                          &error, &num_bytes_written);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
     EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
 
     // Close it.
     error = mojom::FileError::FAILED;
     handled = file->Close((&error));
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
   }
 
   {
     // Open my_file again, this time with read only mode.
     mojom::FilePtr file;
     error = mojom::FileError::FAILED;
     bool handled =
         directory->OpenFile("my_file", GetProxy(&file),
                             mojom::kFlagRead | mojom::kFlagOpen, &error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
 
     // Try to write in read mode; it should fail.
     error = mojom::FileError::OK;
     uint32_t num_bytes_written = 0;
-    handled =
-        file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                    mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+    handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                          &error, &num_bytes_written);
 
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::FAILED, error);
     EXPECT_EQ(0u, num_bytes_written);
 
     // Close it.
     error = mojom::FileError::FAILED;
     handled = file->Close((&error));
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
@@ skipping 17 matching lines @@
 
     // Write to it.
     std::vector<uint8_t> bytes_to_write;
     bytes_to_write.push_back(static_cast<uint8_t>('h'));
     bytes_to_write.push_back(static_cast<uint8_t>('e'));
     bytes_to_write.push_back(static_cast<uint8_t>('l'));
     bytes_to_write.push_back(static_cast<uint8_t>('l'));
     bytes_to_write.push_back(static_cast<uint8_t>('o'));
     error = mojom::FileError::FAILED;
     uint32_t num_bytes_written = 0;
-    handled =
-        file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                    mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+    handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                          &error, &num_bytes_written);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
     EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
 
     // Close it.
     error = mojom::FileError::FAILED;
     handled = file->Close(&error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
   }
@@ skipping 12 matching lines @@
     std::vector<uint8_t> bytes_to_write;
     bytes_to_write.push_back(static_cast<uint8_t>('g'));
     bytes_to_write.push_back(static_cast<uint8_t>('o'));
     bytes_to_write.push_back(static_cast<uint8_t>('o'));
     bytes_to_write.push_back(static_cast<uint8_t>('d'));
     bytes_to_write.push_back(static_cast<uint8_t>('b'));
     bytes_to_write.push_back(static_cast<uint8_t>('y'));
     bytes_to_write.push_back(static_cast<uint8_t>('e'));
     error = mojom::FileError::FAILED;
     uint32_t num_bytes_written = 0;
-    handled =
-        file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                    mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+    handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                          &error, &num_bytes_written);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
     EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
 
     // Close it.
     error = mojom::FileError::FAILED;
     handled = file->Close((&error));
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
   }
 
   {
     // Open my_file again.
     mojom::FilePtr file;
     error = mojom::FileError::FAILED;
     bool handled =
         directory->OpenFile("my_file", GetProxy(&file),
                             mojom::kFlagRead | mojom::kFlagOpen, &error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
 
     // Read from it.
-    mojo::Array<uint8_t> bytes_read;
+    base::Optional<std::vector<uint8_t>> bytes_read;
     error = mojom::FileError::FAILED;
     handled = file->Read(12, 0, mojom::Whence::FROM_BEGIN, &error, &bytes_read);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
-    ASSERT_EQ(12u, bytes_read.size());
-    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read[3]);
-    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read[4]);
-    EXPECT_EQ(static_cast<uint8_t>('g'), bytes_read[5]);
-    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read[6]);
+    ASSERT_TRUE(bytes_read.has_value());
+    ASSERT_EQ(12u, bytes_read.value().size());
+    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read.value()[3]);
+    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read.value()[4]);
+    EXPECT_EQ(static_cast<uint8_t>('g'), bytes_read.value()[5]);
+    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read.value()[6]);
   }
 }
 
 TEST_F(FileImplTest, OpenInTruncateMode) {
   mojom::DirectoryPtr directory;
   GetTemporaryRoot(&directory);
   mojom::FileError error;
 
   {
     // Create my_file.
     mojom::FilePtr file;
     error = mojom::FileError::FAILED;
     bool handled =
         directory->OpenFile("my_file", GetProxy(&file),
                             mojom::kFlagWrite | mojom::kFlagCreate, &error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
 
     // Write to it.
     std::vector<uint8_t> bytes_to_write;
     bytes_to_write.push_back(static_cast<uint8_t>('h'));
     bytes_to_write.push_back(static_cast<uint8_t>('e'));
     bytes_to_write.push_back(static_cast<uint8_t>('l'));
     bytes_to_write.push_back(static_cast<uint8_t>('l'));
     bytes_to_write.push_back(static_cast<uint8_t>('o'));
     error = mojom::FileError::FAILED;
     uint32_t num_bytes_written = 0;
-    handled =
-        file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                    mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+    handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                          &error, &num_bytes_written);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
     EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
 
     // Close it.
     error = mojom::FileError::FAILED;
     handled = file->Close(&error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
   }
@@ skipping 12 matching lines @@
     std::vector<uint8_t> bytes_to_write;
     bytes_to_write.push_back(static_cast<uint8_t>('g'));
     bytes_to_write.push_back(static_cast<uint8_t>('o'));
     bytes_to_write.push_back(static_cast<uint8_t>('o'));
     bytes_to_write.push_back(static_cast<uint8_t>('d'));
     bytes_to_write.push_back(static_cast<uint8_t>('b'));
     bytes_to_write.push_back(static_cast<uint8_t>('y'));
     bytes_to_write.push_back(static_cast<uint8_t>('e'));
     error = mojom::FileError::FAILED;
     uint32_t num_bytes_written = 0;
-    handled =
-        file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                    mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+    handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                          &error, &num_bytes_written);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
     EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
 
     // Close it.
     error = mojom::FileError::FAILED;
     handled = file->Close(&error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
   }
 
   {
     // Open my_file again.
     mojom::FilePtr file;
     error = mojom::FileError::FAILED;
     bool handled =
         directory->OpenFile("my_file", GetProxy(&file),
                             mojom::kFlagRead | mojom::kFlagOpen, &error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
 
     // Read from it.
-    mojo::Array<uint8_t> bytes_read;
+    base::Optional<std::vector<uint8_t>> bytes_read;
     error = mojom::FileError::FAILED;
     handled = file->Read(7, 0, mojom::Whence::FROM_BEGIN, &error, &bytes_read);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
-    ASSERT_EQ(7u, bytes_read.size());
-    EXPECT_EQ(static_cast<uint8_t>('g'), bytes_read[0]);
-    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read[1]);
-    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read[2]);
-    EXPECT_EQ(static_cast<uint8_t>('d'), bytes_read[3]);
+    ASSERT_TRUE(bytes_read.has_value());
+    ASSERT_EQ(7u, bytes_read.value().size());
+    EXPECT_EQ(static_cast<uint8_t>('g'), bytes_read.value()[0]);
+    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read.value()[1]);
+    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read.value()[2]);
+    EXPECT_EQ(static_cast<uint8_t>('d'), bytes_read.value()[3]);
   }
 }
 
 // Note: Ignore nanoseconds, since it may not always be supported. We expect at
 // least second-resolution support though.
 TEST_F(FileImplTest, StatTouch) {
   mojom::DirectoryPtr directory;
   GetTemporaryRoot(&directory);
   mojom::FileError error;
 
@@ skipping 74 matching lines @@
   bool handled =
       directory->OpenFile("my_file", GetProxy(&file),
                           mojom::kFlagWrite | mojom::kFlagCreate, &error);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
 
   // Write to it.
   std::vector<uint8_t> bytes_to_write(1000, '!');
   error = mojom::FileError::FAILED;
   uint32_t num_bytes_written = 0;
-  handled =
-      file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                  mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+  handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT, &error,
+                        &num_bytes_written);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
   EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
   const int size = static_cast<int>(num_bytes_written);
 
   // Tell.
   error = mojom::FileError::FAILED;
   int64_t position = -1;
   handled = file->Tell(&error, &position);
   ASSERT_TRUE(handled);
@@ skipping 69 matching lines @@
 
   // Write to it.
   std::vector<uint8_t> bytes_to_write;
   bytes_to_write.push_back(static_cast<uint8_t>('h'));
   bytes_to_write.push_back(static_cast<uint8_t>('e'));
   bytes_to_write.push_back(static_cast<uint8_t>('l'));
   bytes_to_write.push_back(static_cast<uint8_t>('l'));
   bytes_to_write.push_back(static_cast<uint8_t>('o'));
   error = mojom::FileError::FAILED;
   uint32_t num_bytes_written = 0;
-  handled =
-      file1->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                   mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+  handled = file1->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT, &error,
+                         &num_bytes_written);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
   EXPECT_EQ(bytes_to_write.size(), num_bytes_written);
   const int end_hello_pos = static_cast<int>(num_bytes_written);
 
   // Dup it.
   mojom::FilePtr file2;
   error = mojom::FileError::FAILED;
   handled = file1->Dup(GetProxy(&file2), &error);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
 
   // |file2| should have the same position.
   error = mojom::FileError::FAILED;
   int64_t position = -1;
   handled = file2->Tell(&error, &position);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
   EXPECT_EQ(end_hello_pos, position);
 
   // Write using |file2|.
   std::vector<uint8_t> more_bytes_to_write;
   more_bytes_to_write.push_back(static_cast<uint8_t>('w'));
   more_bytes_to_write.push_back(static_cast<uint8_t>('o'));
   more_bytes_to_write.push_back(static_cast<uint8_t>('r'));
   more_bytes_to_write.push_back(static_cast<uint8_t>('l'));
   more_bytes_to_write.push_back(static_cast<uint8_t>('d'));
   error = mojom::FileError::FAILED;
   num_bytes_written = 0;
-  handled =
-      file2->Write(mojo::Array<uint8_t>::From(more_bytes_to_write), 0,
-                   mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+  handled = file2->Write(more_bytes_to_write, 0, mojom::Whence::FROM_CURRENT,
+                         &error, &num_bytes_written);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
   EXPECT_EQ(more_bytes_to_write.size(), num_bytes_written);
   const int end_world_pos = end_hello_pos + static_cast<int>(num_bytes_written);
 
   // |file1| should have the same position.
   error = mojom::FileError::FAILED;
   position = -1;
   handled = file1->Tell(&error, &position);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
   EXPECT_EQ(end_world_pos, position);
 
   // Close |file1|.
   error = mojom::FileError::FAILED;
   handled = file1->Close(&error);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
 
   // Read everything using |file2|.
-  mojo::Array<uint8_t> bytes_read;
+  base::Optional<std::vector<uint8_t>> bytes_read;
   error = mojom::FileError::FAILED;
   handled =
       file2->Read(1000, 0, mojom::Whence::FROM_BEGIN, &error, &bytes_read);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
-  ASSERT_EQ(static_cast<size_t>(end_world_pos), bytes_read.size());
+  ASSERT_TRUE(bytes_read.has_value());
+  ASSERT_EQ(static_cast<size_t>(end_world_pos), bytes_read.value().size());
   // Just check the first and last bytes.
-  EXPECT_EQ(static_cast<uint8_t>('h'), bytes_read[0]);
-  EXPECT_EQ(static_cast<uint8_t>('d'), bytes_read[end_world_pos - 1]);
+  EXPECT_EQ(static_cast<uint8_t>('h'), bytes_read.value()[0]);
+  EXPECT_EQ(static_cast<uint8_t>('d'), bytes_read.value()[end_world_pos - 1]);
 
   // TODO(vtl): Test that |file2| has the same open options as |file1|.
 }
 
 TEST_F(FileImplTest, Truncate) {
   const uint32_t kInitialSize = 1000;
   const uint32_t kTruncatedSize = 654;
 
   mojom::DirectoryPtr directory;
   GetTemporaryRoot(&directory);
   mojom::FileError error;
 
   // Create my_file.
   mojom::FilePtr file;
   error = mojom::FileError::FAILED;
   bool handled =
       directory->OpenFile("my_file", GetProxy(&file),
                           mojom::kFlagWrite | mojom::kFlagCreate, &error);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
 
   // Write to it.
   std::vector<uint8_t> bytes_to_write(kInitialSize, '!');
   error = mojom::FileError::FAILED;
   uint32_t num_bytes_written = 0;
-  handled =
-      file->Write(mojo::Array<uint8_t>::From(bytes_to_write), 0,
-                  mojom::Whence::FROM_CURRENT, &error, &num_bytes_written);
+  handled = file->Write(bytes_to_write, 0, mojom::Whence::FROM_CURRENT, &error,
+                        &num_bytes_written);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
   EXPECT_EQ(kInitialSize, num_bytes_written);
 
   // Stat it.
   error = mojom::FileError::FAILED;
   mojom::FileInformationPtr file_info;
   handled = file->Stat(&error, &file_info);
   ASSERT_TRUE(handled);
   EXPECT_EQ(mojom::FileError::OK, error);
@@ skipping 54 matching lines @@
     // Reopen my_file.
     mojom::FilePtr file2;
     error = mojom::FileError::FAILED;
     bool handled =
         directory->OpenFile("my_file", GetProxy(&file2),
                             mojom::kFlagRead | mojom::kFlagOpen, &error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
 
     // Verify that we wrote data raw on the file descriptor.
-    mojo::Array<uint8_t> bytes_read;
+    base::Optional<std::vector<uint8_t>> bytes_read;
     error = mojom::FileError::FAILED;
     handled = file2->Read(5, 0, mojom::Whence::FROM_BEGIN, &error, &bytes_read);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
-    ASSERT_EQ(5u, bytes_read.size());
-    EXPECT_EQ(static_cast<uint8_t>('h'), bytes_read[0]);
-    EXPECT_EQ(static_cast<uint8_t>('e'), bytes_read[1]);
-    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read[2]);
-    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read[3]);
-    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read[4]);
+    ASSERT_TRUE(bytes_read.has_value());
+    ASSERT_EQ(5u, bytes_read.value().size());
+    EXPECT_EQ(static_cast<uint8_t>('h'), bytes_read.value()[0]);
+    EXPECT_EQ(static_cast<uint8_t>('e'), bytes_read.value()[1]);
+    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read.value()[2]);
+    EXPECT_EQ(static_cast<uint8_t>('l'), bytes_read.value()[3]);
+    EXPECT_EQ(static_cast<uint8_t>('o'), bytes_read.value()[4]);
   }
 }
 
 TEST_F(FileImplTest, SimpleLockUnlock) {
   mojom::DirectoryPtr directory;
   GetTemporaryRoot(&directory);
   mojom::FileError error;
 
   // Create my_file.
   mojom::FilePtr file;
@@ skipping 79 matching lines @@
     // The file shouldn't be locked (and we check by trying to lock it).
     error = mojom::FileError::FAILED;
     handled = file->Lock(&error);
     ASSERT_TRUE(handled);
     EXPECT_EQ(mojom::FileError::OK, error);
   }
 }
 
 }  // namespace
 }  // namespace filesystem