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// expression_parser_test.cpp
/**
* Copyright (C) 2013 10gen 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 <http://www.gnu.org/licenses/>.
*/
#include "mongo/unittest/unittest.h"
#include "mongo/db/matcher/expression_parser.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/json.h"
#include "mongo/db/matcher/expression.h"
#include "mongo/db/matcher/expression_leaf.h"
namespace mongo {
TEST( MatchExpressionParserTest, SimpleEQ1 ) {
BSONObj query = BSON( "x" << 2 );
StatusWithMatchExpression result = MatchExpressionParser::parse( query );
ASSERT_TRUE( result.isOK() );
ASSERT( result.getValue()->matchesBSON( BSON( "x" << 2 ) ) );
ASSERT( !result.getValue()->matchesBSON( BSON( "x" << 3 ) ) );
}
TEST( MatchExpressionParserTest, Multiple1 ) {
BSONObj query = BSON( "x" << 5 << "y" << BSON( "$gt" << 5 << "$lt" << 8 ) );
StatusWithMatchExpression result = MatchExpressionParser::parse( query );
ASSERT_TRUE( result.isOK() );
ASSERT( result.getValue()->matchesBSON( BSON( "x" << 5 << "y" << 7 ) ) );
ASSERT( result.getValue()->matchesBSON( BSON( "x" << 5 << "y" << 6 ) ) );
ASSERT( !result.getValue()->matchesBSON( BSON( "x" << 6 << "y" << 7 ) ) );
ASSERT( !result.getValue()->matchesBSON( BSON( "x" << 5 << "y" << 9 ) ) );
ASSERT( !result.getValue()->matchesBSON( BSON( "x" << 5 << "y" << 4 ) ) );
}
TEST( AtomicMatchExpressionTest, Simple1 ) {
BSONObj query = BSON( "x" << 5 << "$atomic" << BSON( "$gt" << 5 << "$lt" << 8 ) );
StatusWithMatchExpression result = MatchExpressionParser::parse( query );
ASSERT_TRUE( result.isOK() );
query = BSON( "x" << 5 << "$isolated" << 1 );
result = MatchExpressionParser::parse( query );
ASSERT_TRUE( result.isOK() );
query = BSON( "x" << 5 << "y" << BSON( "$isolated" << 1 ) );
result = MatchExpressionParser::parse( query );
ASSERT_FALSE( result.isOK() );
}
StatusWith<int> fib( int n ) {
if ( n < 0 ) return StatusWith<int>( ErrorCodes::BadValue, "paramter to fib has to be >= 0" );
if ( n <= 1 ) return StatusWith<int>( 1 );
StatusWith<int> a = fib( n - 1 );
StatusWith<int> b = fib( n - 2 );
if ( !a.isOK() ) return a;
if ( !b.isOK() ) return b;
return StatusWith<int>( a.getValue() + b.getValue() );
}
TEST( StatusWithTest, Fib1 ) {
StatusWith<int> x = fib( -2 );
ASSERT( !x.isOK() );
x = fib(0);
ASSERT( x.isOK() );
ASSERT( 1 == x.getValue() );
x = fib(1);
ASSERT( x.isOK() );
ASSERT( 1 == x.getValue() );
x = fib(2);
ASSERT( x.isOK() );
ASSERT( 2 == x.getValue() );
x = fib(3);
ASSERT( x.isOK() );
ASSERT( 3 == x.getValue() );
}
}
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