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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 "mongo/platform/decimal128.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/parser_gen.hpp"
#include "mongo/unittest/bson_test_util.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
TEST(CstMatchTest, ParsesEmptyPredicate) {
CNode output;
auto input = fromjson("{filter: {}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(), "{}");
}
TEST(CstMatchTest, ParsesEqualityPredicates) {
CNode output;
auto input = fromjson("{filter: {a: 5.0, b: NumberInt(10), _id: NumberLong(15)}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: \"<UserDouble 5.000000>\", <UserFieldname b>: \"<UserInt "
"10>\", <UserFieldname _id>: \"<UserLong 15>\" }");
}
TEST(CstMatchTest, ParsesLogicalOperatorsWithOneChild) {
{
CNode output;
auto input = fromjson("{filter: {$and: [{a: 1}]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname andExpr>: [ { <UserFieldname a>: \"<UserInt 1>\" } ] }");
}
{
CNode output;
auto input = fromjson("{filter: {$or: [{a: 1}]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname orExpr>: [ { <UserFieldname a>: \"<UserInt 1>\" } ] }");
}
{
CNode output;
auto input = fromjson("{filter: {$nor: [{a: 1}]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname norExpr>: [ { <UserFieldname a>: \"<UserInt 1>\" } ] }");
}
}
TEST(CstMatchTest, ParsesLogicalOperatorsWithMultipleChildren) {
{
CNode output;
auto input = fromjson("{filter: {$and: [{a: 1}, {b: 'bee'}]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname andExpr>: [ { <UserFieldname a>: \"<UserInt 1>\" }, { "
"<UserFieldname b>: \"<UserString bee>\" } ] }");
}
{
CNode output;
auto input = fromjson("{filter: {$or: [{a: 1}, {b: 'bee'}]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname orExpr>: [ { <UserFieldname a>: \"<UserInt 1>\" }, { "
"<UserFieldname b>: \"<UserString bee>\" } ] }");
}
{
CNode output;
auto input = fromjson("{filter: {$nor: [{a: 1}, {b: 'bee'}]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname norExpr>: [ { <UserFieldname a>: \"<UserInt 1>\" }, { "
"<UserFieldname b>: \"<UserString bee>\" } ] }");
}
}
TEST(CstMatchTest, ParsesNotWithRegex) {
CNode output;
auto input = fromjson("{filter: {a: {$not: /^a/}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname notExpr>: \"<UserRegex /^a/>\" } }");
}
TEST(CstMatchTest, ParsesNotWithChildExpression) {
CNode output;
auto input = fromjson("{filter: {a: {$not: {$not: /^a/}}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname notExpr>: { <KeyFieldname notExpr>: "
"\"<UserRegex /^a/>\" } } }");
}
TEST(CstMatchTest, ParsesExistsWithSimpleValueChild) {
CNode output;
auto input = fromjson("{filter: {a: {$exists: true}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname existsExpr>: \"<UserBoolean true>\" } }");
}
TEST(CstMatchTest, ParsesExistsWithCompoundValueChild) {
CNode output;
auto input = fromjson("{filter: {a: {$exists: [\"hello\", 5, true, \"goodbye\"]}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname existsExpr>: [ \"<UserString hello>\", "
"\"<UserInt 5>\", "
"\"<UserBoolean true>\", \"<UserString goodbye>\" ] } }");
}
TEST(CstMatchTest, ParsesExistsWithObjectChild) {
CNode output;
auto input = fromjson("{filter: {a: {$exists: {a: false }}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname existsExpr>: { <UserFieldname a>: "
"\"<UserBoolean false>\" } } }");
}
TEST(CstMatchTest, ParsesTypeSingleArgument) {
// Check that $type parses with a string argument - a BSON type alias
{
CNode output;
auto input = fromjson("{filter: {a: {$type: \"bool\" }}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname type>: \"<UserString bool>\" } }");
}
// Check that $type parses a number (corresponding to a BSON type)
{
CNode output;
auto input = fromjson("{filter: {a: {$type: 1}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname type>: \"<UserInt 1>\" } }");
}
}
TEST(CstMatchTest, ParsersTypeArrayArgument) {
CNode output;
auto input = fromjson("{filter: {a: {$type: [\"number\", 5, 127, \"objectId\"]}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname type>: [ \"<UserString number>\", \"<UserInt "
"5>\", \"<UserInt 127>\", "
"\"<UserString objectId>\" ] } }");
}
TEST(CstMatchTest, ParsesCommentWithSimpleValueChild) {
CNode output;
auto input = fromjson("{filter: {a: 1, $comment: true}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: \"<UserInt 1>\", <KeyFieldname commentExpr>: \"<UserBoolean "
"true>\" }");
}
TEST(CstMatchTest, ParsesCommentWithCompoundValueChild) {
CNode output;
auto input = fromjson("{filter: {a: 1, $comment: [\"hi\", 5]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: \"<UserInt 1>\", <KeyFieldname commentExpr>: [ \"<UserString "
"hi>\", \"<UserInt 5>\" ] }");
}
TEST(CstMatchTest, ParsesExpr) {
CNode output;
auto input = fromjson("{filter: {$expr: 123}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(), "{ <KeyFieldname expr>: \"<UserInt 123>\" }");
}
TEST(CstMatchTest, ParsesText) {
CNode output;
auto input = fromjson("{filter: {$text: {$search: \"abc\"}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname text>: { "
"<KeyFieldname caseSensitive>: \"<KeyValue absentKey>\", "
"<KeyFieldname diacriticSensitive>: \"<KeyValue absentKey>\", "
"<KeyFieldname language>: \"<KeyValue absentKey>\", "
"<KeyFieldname search>: \"<UserString abc>\" } }");
}
TEST(CstMatchTest, ParsesTextOptions) {
CNode output;
auto input = fromjson(
"{filter: {$text: {"
"$search: \"abc\", "
"$caseSensitive: true, "
"$diacriticSensitive: true, "
"$language: \"asdfzxcv\" } } }");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname text>: { "
"<KeyFieldname caseSensitive>: \"<UserBoolean true>\", "
"<KeyFieldname diacriticSensitive>: \"<UserBoolean true>\", "
"<KeyFieldname language>: \"<UserString asdfzxcv>\", "
"<KeyFieldname search>: \"<UserString abc>\" } }");
}
TEST(CstMatchTest, ParsesWhere) {
CNode output;
auto input = fromjson("{filter: {$where: \"return true;\"}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <KeyFieldname where>: \"<UserString return true;>\" }");
}
TEST(CstMatchTest, FailsToParseNotWithNonObject) {
CNode output;
auto input = fromjson("{filter: {a: {$not: 1}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected 1 (int), expecting object or regex at "
"element '1' within '$not' of input filter");
}
TEST(CstMatchTest, FailsToParseUnknownOperatorWithinNotExpression) {
CNode output;
auto input = fromjson("{filter: {a: {$not: {$and: [{a: 1}]}}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE(
ParserGen(lexer, nullptr).parse(), AssertionException, ErrorCodes::FailedToParse);
}
TEST(CstMatchTest, FailsToParseNotWithEmptyObject) {
CNode output;
auto input = fromjson("{filter: {a: {$not: {}}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE(
ParserGen(lexer, nullptr).parse(), AssertionException, ErrorCodes::FailedToParse);
}
TEST(CstMatchTest, FailsToParseDollarPrefixedPredicates) {
{
auto input = fromjson("{filter: {$atan2: [3, 5]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(
ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected ATAN2 at element '$atan2' of input filter");
}
{
auto input = fromjson("{filter: {$prefixed: 5}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(
ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected $-prefixed fieldname at element '$prefixed' of input filter");
}
{
auto input = fromjson("{filter: {$$ROOT: 5}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(
ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected $-prefixed fieldname at element '$$ROOT' of input filter");
}
}
TEST(CstMatchTest, FailsToParseDollarPrefixedPredicatesWithinLogicalExpression) {
auto input = fromjson("{filter: {$and: [{$prefixed: 5}]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(
ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected $-prefixed fieldname at element '$prefixed' within array at "
"index 0 within '$and' of input filter");
}
TEST(CstMatchTest, FailsToParseNonArrayLogicalKeyword) {
auto input = fromjson("{filter: {$and: {a: 5}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected object, expecting array at element "
"'start object' within '$and' of input filter");
}
TEST(CstMatchTest, FailsToParseNonObjectWithinLogicalKeyword) {
auto input = fromjson("{filter: {$or: [5]}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected arbitrary integer, expecting object at "
"element '5' within array at index 0 within '$or' of input filter");
}
TEST(CstMatchTest, FailsToParseLogicalKeywordWithEmptyArray) {
auto input = fromjson("{filter: {$nor: []}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected end of array, expecting object at "
"element 'end array' within '$nor' of input filter");
}
TEST(CstMatchTest, FailsToParseTypeWithBadSpecifier) {
// Shouldn't parse if the number given isn't a valid BSON type specifier.
{
auto input = fromjson("{filter: {a: {$type: 0}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE(
ParserGen(lexer, nullptr).parse(), AssertionException, ErrorCodes::FailedToParse);
}
// Shouldn't parse if the string given isn't a valid BSON type alias.
{
auto input = fromjson("{filter: {$type: {a: \"notABsonType\"}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE(
ParserGen(lexer, nullptr).parse(), AssertionException, ErrorCodes::FailedToParse);
}
// Shouldn't parse if any argument isn't a valid BSON type alias.
{
auto input = fromjson("{filter: {a: {$type: [1, \"number\", \"notABsonType\"]}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE(
ParserGen(lexer, nullptr).parse(), AssertionException, ErrorCodes::FailedToParse);
}
}
TEST(CstMatchTest, ParsesMod) {
CNode output;
auto input = fromjson("{filter: {a: {$mod: [3, 2.0]}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
auto parseTree = ParserGen(lexer, &output);
ASSERT_EQ(0, parseTree.parse());
ASSERT_EQ(output.toBson().toString(),
"{ <UserFieldname a>: { <KeyFieldname matchMod>: ["
" \"<UserInt 3>\", \"<UserDouble 2.000000>\" ] } }");
}
TEST(CstMatchTest, FailsToParseModWithEmptyArray) {
auto input = fromjson("{filter: {a: {$mod: []}}}");
BSONLexer lexer(input["filter"].embeddedObject(), ParserGen::token::START_MATCH);
ASSERT_THROWS_CODE_AND_WHAT(ParserGen(lexer, nullptr).parse(),
AssertionException,
ErrorCodes::FailedToParse,
"syntax error, unexpected end of array at "
"element 'end array' within '$mod' of input filter");
}
} // namespace
} // namespace mongo
|
