sandboxed-api/oss-internship-2020/libpng/tests/basic_test.cc

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3.5 KiB
C++

// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "../sandboxed.h" // NOLINT(build/include)
#include "gtest/gtest.h"
#include "helper.h" // NOLINT(build/include)
#include "libpng.h" // NOLINT(build/include)
#include "sandboxed_api/sandbox2/util/fileops.h"
#include "sandboxed_api/sandbox2/util/path.h"
#include "sandboxed_api/sandbox2/util/temp_file.h"
#include "sandboxed_api/util/status_matchers.h"
namespace {
using ::sapi::IsOk;
using ::testing::Eq;
using ::testing::IsTrue;
TEST(SandboxTest, ReadWrite) {
std::string infile = GetFilePath("pngtest.png");
absl::StatusOr<std::string> status_or_path =
sandbox2::CreateNamedTempFileAndClose("output.png");
ASSERT_THAT(status_or_path, IsOk()) << "Could not create temp output file";
std::string outfile = sandbox2::file::JoinPath(
sandbox2::file_util::fileops::GetCWD(), status_or_path.value());
LibPNGSapiSandbox sandbox;
sandbox.AddFile(infile);
sandbox.AddFile(outfile);
ASSERT_THAT(sandbox.Init(), IsOk()) << "Couldn't initialize Sandboxed API";
LibPNGApi api(&sandbox);
sapi::v::Struct<png_image> image;
sapi::v::ConstCStr infile_var(infile.c_str());
sapi::v::ConstCStr outfile_var(outfile.c_str());
image.mutable_data()->version = PNG_IMAGE_VERSION;
absl::StatusOr<int> status_or_int = api.png_image_begin_read_from_file(
image.PtrBoth(), infile_var.PtrBefore());
ASSERT_THAT(status_or_int, IsOk())
<< "fatal error when invoking png_image_begin_read_from_file";
ASSERT_THAT(status_or_int.value(), IsTrue())
<< "png_image_begin_read_from_file failed: "
<< image.mutable_data()->message;
image.mutable_data()->format = PNG_FORMAT_RGBA;
ASSERT_THAT(image.mutable_data()->version, Eq(PNG_IMAGE_VERSION))
<< "image version changed";
sapi::v::Array<uint8_t> buffer(PNG_IMAGE_SIZE(*image.mutable_data()));
sapi::v::NullPtr null = sapi::v::NullPtr();
status_or_int = api.png_image_finish_read(image.PtrBoth(), &null,
buffer.PtrBoth(), 0, &null);
ASSERT_THAT(status_or_int, IsOk())
<< "fatal error when invoking png_image_finish_read";
ASSERT_THAT(status_or_int.value(), IsTrue())
<< "png_image_finish_read failed: " << image.mutable_data()->message;
ASSERT_THAT(image.mutable_data()->version, Eq(PNG_IMAGE_VERSION))
<< "image version changed";
ASSERT_THAT(image.mutable_data()->format, Eq(PNG_FORMAT_RGBA))
<< "image format changed";
status_or_int = api.png_image_write_to_file(
image.PtrBoth(), outfile_var.PtrBefore(), 0, buffer.PtrBoth(), 0, &null);
ASSERT_THAT(status_or_int, IsOk())
<< "fatal error when invoking png_image_write_to_file";
ASSERT_THAT(status_or_int.value(), IsTrue())
<< "png_image_finish_read failed: " << image.mutable_data()->message;
ASSERT_THAT(image.mutable_data()->version, Eq(PNG_IMAGE_VERSION))
<< "image version changed";
ASSERT_THAT(image.mutable_data()->format, Eq(PNG_FORMAT_RGBA))
<< "image format changed";
}
} // namespace