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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/bson/bsonobjbuilder.h"
#include "mongo/client/remote_command_targeter_mock.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/dbdirectclient.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/s/implicit_create_collection.h"
#include "mongo/s/request_types/create_collection_gen.h"
#include "mongo/s/shard_server_test_fixture.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/assert_util.h"
namespace mongo {
namespace {
class ImplicitCreateTest : public ShardServerTestFixture {
public:
void expectConfigCreate(const NamespaceString& expectedNss, const Status& response) {
onCommand([&](const executor::RemoteCommandRequest& request) {
auto configHostStatus = configTargeterMock()->findHost(nullptr, {});
ASSERT_OK(configHostStatus.getStatus());
auto configHost = configHostStatus.getValue();
ASSERT_EQ(configHost, request.target);
auto cmdName = request.cmdObj.firstElement().fieldName();
ASSERT_EQ(ConfigsvrCreateCollection::kCommandName, cmdName);
ASSERT_EQ("admin", request.dbname);
ASSERT_EQ(expectedNss.ns(), request.cmdObj.firstElement().String());
BSONObjBuilder responseBuilder;
CommandHelpers::appendCommandStatusNoThrow(responseBuilder, response);
return responseBuilder.obj();
});
}
};
TEST_F(ImplicitCreateTest, NormalCreate) {
const NamespaceString kNs("test.user");
auto future = launchAsync([this, &kNs] {
ThreadClient tc("Test", getGlobalServiceContext());
auto opCtx = cc().makeOperationContext();
ASSERT_OK(onCannotImplicitlyCreateCollection(opCtx.get(), kNs));
});
expectConfigCreate(kNs, Status::OK());
future.default_timed_get();
}
TEST_F(ImplicitCreateTest, CanCallOnCannotImplicitAgainAfterError) {
const NamespaceString kNs("test.user");
auto future = launchAsync([this, &kNs] {
ThreadClient tc("Test", getGlobalServiceContext());
auto opCtx = cc().makeOperationContext();
auto status = onCannotImplicitlyCreateCollection(opCtx.get(), kNs);
ASSERT_EQ(ErrorCodes::FailPointEnabled, status);
});
// return a non retryable error (just for testing) so the handler won't retry.
expectConfigCreate(kNs, {ErrorCodes::FailPointEnabled, "deliberate error"});
future.default_timed_get();
// Retry, but this time config server will return success
future = launchAsync([this, &kNs] {
ThreadClient tc("Test", getGlobalServiceContext());
auto opCtx = cc().makeOperationContext();
ASSERT_OK(onCannotImplicitlyCreateCollection(opCtx.get(), kNs));
});
expectConfigCreate(kNs, Status::OK());
future.default_timed_get();
}
TEST_F(ImplicitCreateTest, ShouldNotCallConfigCreateIfCollectionExists) {
const NamespaceString kNs("test.user");
auto future = launchAsync([this, &kNs] {
ThreadClient tc("Test", getGlobalServiceContext());
auto opCtx = cc().makeOperationContext();
auto status = onCannotImplicitlyCreateCollection(opCtx.get(), kNs);
ASSERT_EQ(ErrorCodes::FailPointEnabled, status);
});
// return a non retryable error (just for testing) so the handler won't retry.
expectConfigCreate(kNs, {ErrorCodes::FailPointEnabled, "deliberate error"});
future.default_timed_get();
// Simulate config server successfully creating the collection despite returning error.
DBDirectClient client(operationContext());
BSONObj result;
ASSERT_TRUE(
client.runCommand(kNs.db().toString(), BSON("create" << kNs.coll().toString()), result));
// Retry, but this time config server will return success
future = launchAsync([this, &kNs] {
ThreadClient tc("Test", getGlobalServiceContext());
auto opCtx = cc().makeOperationContext();
ASSERT_OK(onCannotImplicitlyCreateCollection(opCtx.get(), kNs));
});
// Not expecting this shard to send any remote command.
future.default_timed_get();
}
} // unnamed namespace
} // namespace mongo
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