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// Copyright 2021 The Tint Authors.
//
// 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 "src/tint/utils/io/tmpfile.h"
#include <fstream>
#include "gtest/gtest.h"
namespace tint::utils {
namespace {
TEST(TmpFileTest, WriteReadAppendDelete) {
std::string path;
{
TmpFile tmp;
if (!tmp) {
GTEST_SKIP() << "Unable to create a temporary file";
}
path = tmp.Path();
// Write a string to the temporary file
tmp << "hello world\n";
// Check the content of the file
{
std::ifstream file(path);
ASSERT_TRUE(file);
std::string line;
EXPECT_TRUE(std::getline(file, line));
EXPECT_EQ(line, "hello world");
EXPECT_FALSE(std::getline(file, line));
}
// Write some more content to the file
tmp << 42;
// Check the content of the file again
{
std::ifstream file(path);
ASSERT_TRUE(file);
std::string line;
EXPECT_TRUE(std::getline(file, line));
EXPECT_EQ(line, "hello world");
EXPECT_TRUE(std::getline(file, line));
EXPECT_EQ(line, "42");
EXPECT_FALSE(std::getline(file, line));
}
}
// Check the file has been deleted when it fell out of scope
std::ifstream file(path);
ASSERT_FALSE(file);
}
TEST(TmpFileTest, FileExtension) {
const std::string kExt = ".foo";
std::string path;
{
TmpFile tmp(kExt);
if (!tmp) {
GTEST_SKIP() << "Unable create a temporary file";
}
path = tmp.Path();
}
ASSERT_GT(path.length(), kExt.length());
EXPECT_EQ(kExt, path.substr(path.length() - kExt.length()));
// Check the file has been deleted when it fell out of scope
std::ifstream file(path);
ASSERT_FALSE(file);
}
} // namespace
} // namespace tint::utils