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/**
* Copyright (C) 2020-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 <string>
#include "mongo/bson/json.h"
#include "mongo/db/cst/bson_lexer.h"
#include "mongo/db/cst/c_node.h"
#include "mongo/db/cst/key_fieldname.h"
#include "mongo/db/cst/key_value.h"
#include "mongo/db/cst/pipeline_parser_gen.hpp"
#include "mongo/unittest/bson_test_util.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
TEST(CstTest, BuildsAndPrints) {
{
const auto cst = CNode{CNode::ObjectChildren{
{KeyFieldname::atan2,
CNode{CNode::ArrayChildren{CNode{UserDouble{3.0}}, CNode{UserDouble{2.0}}}}}}};
ASSERT_BSONOBJ_EQ(
fromjson("{atan2: [\"<UserDouble 3.000000>\", \"<UserDouble 2.000000>\"]}"),
cst.toBson());
}
{
const auto cst = CNode{CNode::ObjectChildren{
{KeyFieldname::project,
CNode{CNode::ObjectChildren{{UserFieldname{"a"}, CNode{KeyValue::trueKey}},
{KeyFieldname::id, CNode{KeyValue::falseKey}}}}}}};
ASSERT_BSONOBJ_EQ(
fromjson("{project : {a: \"<KeyValue trueKey>\", id: \"<KeyValue falseKey>\"}}"),
cst.toBson());
}
}
TEST(CstGrammarTest, EmptyPipeline) {
CNode output;
auto input = fromjson("{pipeline: []}");
BSONLexer lexer(input["pipeline"].Array());
auto parseTree = PipelineParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_TRUE(stdx::get_if<CNode::ArrayChildren>(&output.payload));
ASSERT_EQ(0, stdx::get_if<CNode::ArrayChildren>(&output.payload)->size());
}
TEST(CstGrammarTest, InvalidPipelineSpec) {
{
CNode output;
auto input = fromjson("{pipeline: [{}]}");
BSONLexer lexer(input["pipeline"].Array());
auto parseTree = PipelineParserGen(lexer, &output);
ASSERT_EQ(1, parseTree.parse());
}
{
CNode output;
auto input = fromjson("{pipeline: [{$unknownStage: {}}]}");
BSONLexer lexer(input["pipeline"].Array());
auto parseTree = PipelineParserGen(lexer, &output);
ASSERT_EQ(1, parseTree.parse());
}
{
ASSERT_THROWS_CODE(
[] {
CNode output;
auto input = fromjson("{pipeline: 'not an array'}");
BSONLexer lexer(input["pipeline"].Array());
}(),
AssertionException,
13111);
}
}
TEST(CstGrammarTest, ParsesInternalInhibitOptimization) {
{
CNode output;
auto input = fromjson("{pipeline: [{$_internalInhibitOptimization: {}}]}");
BSONLexer lexer(input["pipeline"].Array());
auto parseTree = PipelineParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
auto stages = stdx::get<CNode::ArrayChildren>(output.payload);
ASSERT_EQ(1, stages.size());
ASSERT(KeyFieldname::inhibitOptimization == stages[0].firstKeyFieldname());
}
{
CNode output;
auto input = fromjson("{pipeline: [{$_internalInhibitOptimization: 'invalid'}]}");
BSONLexer lexer(input["pipeline"].Array());
auto parseTree = PipelineParserGen(lexer, &output);
ASSERT_EQ(1, parseTree.parse());
}
}
} // namespace
} // namespace mongo
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