/**
* Copyright (C) 2016 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see .
*
* 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 GNU Affero General 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
#include
#include "mongo/base/string_data.h"
#include "mongo/bson/bsonmisc.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/db/pipeline/aggregation_context_fixture.h"
#include "mongo/db/pipeline/document.h"
#include "mongo/db/pipeline/document_source_count.h"
#include "mongo/db/pipeline/document_source_group.h"
#include "mongo/db/pipeline/document_source_single_document_transformation.h"
#include "mongo/db/pipeline/document_value_test_util.h"
#include "mongo/db/pipeline/value.h"
namespace mongo {
namespace {
using boost::intrusive_ptr;
using std::list;
using std::vector;
class CountReturnsGroupAndProjectStages : public AggregationContextFixture {
public:
void testCreateFromBsonResult(BSONObj countSpec) {
list> result =
DocumentSourceCount::createFromBson(countSpec.firstElement(), getExpCtx());
ASSERT_EQUALS(result.size(), 2UL);
const auto* groupStage = dynamic_cast(result.front().get());
ASSERT(groupStage);
const auto* projectStage =
dynamic_cast(result.back().get());
ASSERT(projectStage);
auto explain = ExplainOptions::Verbosity::kQueryPlanner;
vector explainedStages;
groupStage->serializeToArray(explainedStages, explain);
projectStage->serializeToArray(explainedStages, explain);
ASSERT_EQUALS(explainedStages.size(), 2UL);
StringData countName = countSpec.firstElement().valueStringData();
Value expectedGroupExplain =
Value{Document{{"_id", Document{{"$const", BSONNULL}}},
{countName, Document{{"$sum", Document{{"$const", 1}}}}}}};
auto groupExplain = explainedStages[0];
ASSERT_VALUE_EQ(groupExplain["$group"], expectedGroupExplain);
Value expectedProjectExplain = Value{Document{{"_id", false}, {countName, true}}};
auto projectExplain = explainedStages[1];
ASSERT_VALUE_EQ(projectExplain["$project"], expectedProjectExplain);
}
};
TEST_F(CountReturnsGroupAndProjectStages, ValidStringSpec) {
BSONObj spec = BSON("$count"
<< "myCount");
testCreateFromBsonResult(spec);
spec = BSON("$count"
<< "quantity");
testCreateFromBsonResult(spec);
}
class InvalidCountSpec : public AggregationContextFixture {
public:
list> createCount(BSONObj countSpec) {
auto specElem = countSpec.firstElement();
return DocumentSourceCount::createFromBson(specElem, getExpCtx());
}
};
TEST_F(InvalidCountSpec, NonStringSpec) {
BSONObj spec = BSON("$count" << 1);
ASSERT_THROWS_CODE(createCount(spec), AssertionException, 40156);
spec = BSON("$count" << BSON("field1"
<< "test"));
ASSERT_THROWS_CODE(createCount(spec), AssertionException, 40156);
}
TEST_F(InvalidCountSpec, EmptyStringSpec) {
BSONObj spec = BSON("$count"
<< "");
ASSERT_THROWS_CODE(createCount(spec), AssertionException, 40157);
}
TEST_F(InvalidCountSpec, FieldPathSpec) {
BSONObj spec = BSON("$count"
<< "$x");
ASSERT_THROWS_CODE(createCount(spec), AssertionException, 40158);
}
TEST_F(InvalidCountSpec, EmbeddedNullByteSpec) {
BSONObj spec = BSON("$count"
<< "te\0st"_sd);
ASSERT_THROWS_CODE(createCount(spec), AssertionException, 40159);
}
TEST_F(InvalidCountSpec, PeriodInStringSpec) {
BSONObj spec = BSON("$count"
<< "test.string");
ASSERT_THROWS_CODE(createCount(spec), AssertionException, 40160);
}
} // namespace
} // namespace mongo