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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/client.h"
#include "mongo/db/service_context_test_fixture.h"
#include "mongo/transport/transport_layer_mock.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/assert_util.h"
namespace mongo {
namespace {
class ThreadClientTest : public unittest::Test, public ScopedGlobalServiceContextForTest {};
TEST_F(ThreadClientTest, TestNoAssignment) {
ASSERT_FALSE(haveClient());
{ ThreadClient tc(getThreadName(), getGlobalServiceContext()); }
ASSERT_FALSE(haveClient());
}
TEST_F(ThreadClientTest, TestAssignment) {
ASSERT_FALSE(haveClient());
ThreadClient threadClient(getThreadName(), getGlobalServiceContext());
ASSERT_TRUE(haveClient());
}
TEST_F(ThreadClientTest, TestDifferentArgs) {
{
ASSERT_FALSE(haveClient());
ThreadClient tc(getGlobalServiceContext());
ASSERT_TRUE(haveClient());
}
{
ASSERT_FALSE(haveClient());
ThreadClient tc("Test", getGlobalServiceContext());
ASSERT_TRUE(haveClient());
}
{
ASSERT_FALSE(haveClient());
transport::TransportLayerMock mock;
transport::SessionHandle handle = mock.createSession();
ThreadClient tc(getThreadName(), getGlobalServiceContext(), handle);
ASSERT_TRUE(haveClient());
}
{
ASSERT_FALSE(haveClient());
auto sc = ServiceContext::make();
ThreadClient tc("Test", sc.get(), nullptr);
ASSERT_TRUE(haveClient());
}
}
TEST_F(ThreadClientTest, TestAlternativeClientRegion) {
ASSERT_FALSE(haveClient());
ThreadClient threadClient(getThreadName(), getGlobalServiceContext());
ServiceContext::UniqueClient swapClient = getGlobalServiceContext()->makeClient("swapClient");
{ AlternativeClientRegion altRegion(swapClient); }
ASSERT_TRUE(haveClient());
}
/**
* This test asserts that original thread names are restored after a ThreadClient object
* goes out of scope.
*/
TEST_F(ThreadClientTest, TestThreadName) {
ASSERT_FALSE(haveClient());
const auto originalThreadName = getThreadName();
{
ThreadClient threadClient("MyThreadClient", getGlobalServiceContext());
ASSERT_TRUE(haveClient());
// The instatiation of ThreadClient should have changed this thread name
ASSERT_NE(originalThreadName, getThreadName());
}
ASSERT_FALSE(haveClient());
// The original name for this thread should have been restored.
ASSERT_EQ(originalThreadName, getThreadName());
}
} // namespace
} // namespace mongo
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