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// Copyright 2020 The Chromium OS 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 "brillo/namespaces/mock_platform.h"
#include "brillo/namespaces/mount_namespace.h"
#include "brillo/namespaces/platform.h"
#include <unistd.h>
#include <memory>
#include <base/files/file_path.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
using ::testing::_;
using ::testing::DoAll;
using ::testing::NiceMock;
using ::testing::Return;
using ::testing::SetArgPointee;
namespace brillo {
class MountNamespaceTest : public ::testing::Test {
public:
MountNamespaceTest() {}
~MountNamespaceTest() {}
void SetUp() {}
void TearDown() {}
protected:
NiceMock<MockPlatform> platform_;
private:
DISALLOW_COPY_AND_ASSIGN(MountNamespaceTest);
};
TEST_F(MountNamespaceTest, CreateNamespace) {
std::unique_ptr<MountNamespace> ns =
std::make_unique<MountNamespace>(base::FilePath(), &platform_);
EXPECT_CALL(platform_, Fork()).WillOnce(Return(1));
EXPECT_CALL(platform_, Mount(_, _, _, _, _)).WillOnce(Return(0));
EXPECT_CALL(platform_, Waitpid(_, _))
.WillOnce(DoAll(SetArgPointee<1>(0x00000000), Return(0)));
EXPECT_TRUE(ns->Create());
EXPECT_CALL(platform_, Unmount(ns->path(), _, _)).WillOnce(Return(true));
}
TEST_F(MountNamespaceTest, CreateNamespaceFailedOnWaitpid) {
std::unique_ptr<MountNamespace> ns =
std::make_unique<MountNamespace>(base::FilePath(), &platform_);
EXPECT_CALL(platform_, Fork()).WillOnce(Return(1));
EXPECT_CALL(platform_, Mount(_, _, _, _, _)).WillOnce(Return(0));
EXPECT_CALL(platform_, Waitpid(_, _)).WillOnce(Return(-1));
EXPECT_FALSE(ns->Create());
}
TEST_F(MountNamespaceTest, CreateNamespaceFailedOnMount) {
std::unique_ptr<MountNamespace> ns =
std::make_unique<MountNamespace>(base::FilePath(), &platform_);
EXPECT_CALL(platform_, Fork()).WillOnce(Return(1));
EXPECT_CALL(platform_, Mount(_, _, _, _, _)).WillOnce(Return(-1));
EXPECT_FALSE(ns->Create());
}
TEST_F(MountNamespaceTest, CreateNamespaceFailedOnStatus) {
std::unique_ptr<MountNamespace> ns =
std::make_unique<MountNamespace>(base::FilePath(), &platform_);
EXPECT_CALL(platform_, Fork()).WillOnce(Return(1));
EXPECT_CALL(platform_, Mount(_, _, _, _, _)).WillOnce(Return(0));
EXPECT_CALL(platform_, Waitpid(_, _))
.WillOnce(DoAll(SetArgPointee<1>(0xFFFFFFFF), Return(0)));
EXPECT_FALSE(ns->Create());
}
TEST_F(MountNamespaceTest, DestroyAfterUnmountFailsAndUnmountSucceeds) {
std::unique_ptr<MountNamespace> ns =
std::make_unique<MountNamespace>(base::FilePath(), &platform_);
EXPECT_CALL(platform_, Fork()).WillOnce(Return(1));
EXPECT_CALL(platform_, Mount(_, _, _, _, _)).WillOnce(Return(0));
EXPECT_CALL(platform_, Waitpid(_, _))
.WillOnce(DoAll(SetArgPointee<1>(0x00000000), Return(0)));
EXPECT_TRUE(ns->Create());
EXPECT_CALL(platform_, Unmount(ns->path(), _, _)).WillOnce(Return(false));
EXPECT_FALSE(ns->Destroy());
EXPECT_CALL(platform_, Unmount(ns->path(), _, _)).WillOnce(Return(true));
EXPECT_TRUE(ns->Destroy());
}
} // namespace brillo
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