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// Copyright 2018 The gVisor 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 "test/util/fs_util.h"
#include <errno.h>
#include <vector>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "test/util/posix_error.h"
#include "test/util/temp_path.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
namespace {
TEST(FsUtilTest, RecursivelyCreateDirManualDelete) {
const TempPath root = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
const std::string base_path =
JoinPath(root.path(), "/a/b/c/d/e/f/g/h/i/j/k/l/m");
ASSERT_THAT(Exists(base_path), IsPosixErrorOkAndHolds(false));
ASSERT_NO_ERRNO(RecursivelyCreateDir(base_path));
// Delete everything until we hit root and then stop, we want to try this
// without using RecursivelyDelete.
std::string cur_path = base_path;
while (cur_path != root.path()) {
ASSERT_THAT(Exists(cur_path), IsPosixErrorOkAndHolds(true));
ASSERT_NO_ERRNO(Rmdir(cur_path));
ASSERT_THAT(Exists(cur_path), IsPosixErrorOkAndHolds(false));
auto dir = Dirname(cur_path);
cur_path = std::string(dir);
}
}
TEST(FsUtilTest, RecursivelyCreateAndDeleteDir) {
const TempPath root = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
const std::string base_path =
JoinPath(root.path(), "/a/b/c/d/e/f/g/h/i/j/k/l/m");
ASSERT_THAT(Exists(base_path), IsPosixErrorOkAndHolds(false));
ASSERT_NO_ERRNO(RecursivelyCreateDir(base_path));
const std::string sub_path = JoinPath(root.path(), "a");
ASSERT_NO_ERRNO(RecursivelyDelete(sub_path, nullptr, nullptr));
ASSERT_THAT(Exists(sub_path), IsPosixErrorOkAndHolds(false));
}
TEST(FsUtilTest, RecursivelyCreateAndDeletePartial) {
const TempPath root = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
const std::string base_path =
JoinPath(root.path(), "/a/b/c/d/e/f/g/h/i/j/k/l/m");
ASSERT_THAT(Exists(base_path), IsPosixErrorOkAndHolds(false));
ASSERT_NO_ERRNO(RecursivelyCreateDir(base_path));
const std::string a = JoinPath(root.path(), "a");
auto listing = ASSERT_NO_ERRNO_AND_VALUE(ListDir(a, true));
ASSERT_THAT(listing, ::testing::Contains("b"));
ASSERT_EQ(listing.size(), 1);
listing = ASSERT_NO_ERRNO_AND_VALUE(ListDir(a, false));
ASSERT_THAT(listing, ::testing::Contains("."));
ASSERT_THAT(listing, ::testing::Contains(".."));
ASSERT_THAT(listing, ::testing::Contains("b"));
ASSERT_EQ(listing.size(), 3);
const std::string sub_path = JoinPath(root.path(), "/a/b/c/d/e/f");
ASSERT_NO_ERRNO(
CreateWithContents(JoinPath(Dirname(sub_path), "file"), "Hello World"));
std::string contents = "";
ASSERT_NO_ERRNO(GetContents(JoinPath(Dirname(sub_path), "file"), &contents));
ASSERT_EQ(contents, "Hello World");
ASSERT_NO_ERRNO(RecursivelyDelete(sub_path, nullptr, nullptr));
ASSERT_THAT(Exists(sub_path), IsPosixErrorOkAndHolds(false));
// The parent of the subpath (directory e) should still exist.
ASSERT_THAT(Exists(Dirname(sub_path)), IsPosixErrorOkAndHolds(true));
// The file we created along side f should also still exist.
ASSERT_THAT(Exists(JoinPath(Dirname(sub_path), "file")),
IsPosixErrorOkAndHolds(true));
}
} // namespace
} // namespace testing
} // namespace gvisor
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