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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/db/matcher/expression_always_boolean.h"
#include "mongo/unittest/death_test.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
TEST(AlwaysFalseMatchExpression, RejectsAllObjects) {
AlwaysFalseMatchExpression falseExpr;
ASSERT_FALSE(falseExpr.matchesBSON(BSON("a" << BSONObj())));
ASSERT_FALSE(falseExpr.matchesBSON(BSON("a" << 1)));
ASSERT_FALSE(falseExpr.matchesBSON(BSON("a"
<< "string")));
ASSERT_FALSE(falseExpr.matchesBSON(BSONObj()));
}
TEST(AlwaysFalseMatchExpression, EquivalentReturnsCorrectResults) {
auto falseExpr = std::make_unique<AlwaysFalseMatchExpression>();
ASSERT_TRUE(falseExpr->equivalent(falseExpr.get()));
ASSERT_TRUE(falseExpr->equivalent(falseExpr->clone().get()));
AlwaysTrueMatchExpression trueExpr;
ASSERT_FALSE(falseExpr->equivalent(&trueExpr));
}
TEST(AlwaysTrueMatchExpression, AcceptsAllObjects) {
AlwaysTrueMatchExpression trueExpr;
ASSERT_TRUE(trueExpr.matchesBSON(BSON("a" << BSONObj())));
ASSERT_TRUE(trueExpr.matchesBSON(BSON("a" << 1)));
ASSERT_TRUE(trueExpr.matchesBSON(BSON("a"
<< "string")));
ASSERT_TRUE(trueExpr.matchesBSON(BSONObj()));
}
TEST(AlwaysTrueMatchExpression, EquivalentReturnsCorrectResults) {
auto trueExpr = std::make_unique<AlwaysTrueMatchExpression>();
ASSERT_TRUE(trueExpr->equivalent(trueExpr.get()));
ASSERT_TRUE(trueExpr->equivalent(trueExpr->clone().get()));
AlwaysFalseMatchExpression falseExpr;
ASSERT_FALSE(trueExpr->equivalent(&falseExpr));
}
DEATH_TEST_REGEX(AlwaysTrueMatchExpression,
GetChildFailsIndexGreaterThanZero,
"Tripwire assertion.*6400202") {
auto trueExpr = std::make_unique<AlwaysTrueMatchExpression>();
ASSERT_EQ(trueExpr->numChildren(), 0);
ASSERT_THROWS_CODE(trueExpr->getChild(0), AssertionException, 6400202);
}
DEATH_TEST_REGEX(AlwaysFalseMatchExpression,
GetChildFailsIndexGreaterThanZero,
"Tripwire assertion.*6400202") {
auto falseExpr = std::make_unique<AlwaysFalseMatchExpression>();
ASSERT_EQ(falseExpr->numChildren(), 0);
ASSERT_THROWS_CODE(falseExpr->getChild(0), AssertionException, 6400202);
}
} // namespace
} // namespace mongo
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