/**
* Copyright (C) 2017 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 "mongo/bson/json.h"
#include "mongo/db/matcher/expression_parser.h"
#include "mongo/db/matcher/expression_with_placeholder.h"
#include "mongo/db/matcher/schema/expression_internal_schema_match_array_index.h"
#include "mongo/db/pipeline/expression_context_for_test.h"
#include "mongo/db/query/collation/collator_interface_mock.h"
#include "mongo/unittest/death_test.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
TEST(InternalSchemaMatchArrayIndexMatchExpression, RejectsNonArrays) {
auto filter = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 0, namePlaceholder: 'i', expression: {i: {$gt: 7}}}}}");
boost::intrusive_ptr expCtx(new ExpressionContextForTest());
auto expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
ASSERT_FALSE(expr.getValue()->matchesBSON(fromjson("{foo: 'blah'}")));
ASSERT_FALSE(expr.getValue()->matchesBSON(fromjson("{foo: 7}")));
ASSERT_FALSE(expr.getValue()->matchesBSON(fromjson("{foo: {i: []}}")));
}
TEST(InternalSchemaMatchArrayIndexMatchExpression, MatchesArraysWithMatchingElement) {
auto filter = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 0, namePlaceholder: 'i', expression: {i: {$elemMatch: {'bar': 7}}}}}}");
boost::intrusive_ptr expCtx(new ExpressionContextForTest());
auto expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
ASSERT_TRUE(expr.getValue()->matchesBSON(fromjson("{foo: [[{bar: 7}], [{bar: 5}]]}")));
ASSERT_TRUE(expr.getValue()->matchesBSON(fromjson("{foo: [[{bar: [3, 5, 7]}], [{bar: 5}]]}")));
filter = fromjson(
"{baz: {$_internalSchemaMatchArrayIndex:"
"{index: 2, namePlaceholder: 'i', expression: {i: {$type: 'string'}}}}}");
expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
ASSERT_TRUE(expr.getValue()->matchesBSON(fromjson("{baz: [0, 1, '2']}")));
}
TEST(InternalSchemaMatchArrayIndexMatchExpression, DoesNotMatchArrayIfMatchingElementNotAtIndex) {
auto filter = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 0, namePlaceholder: 'i', expression: {i: {$lte: 7}}}}}");
boost::intrusive_ptr expCtx(new ExpressionContextForTest());
auto expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
ASSERT_FALSE(expr.getValue()->matchesBSON(fromjson("{foo: [33, 0, 1, 2]}")));
filter = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 1, namePlaceholder: 'i', expression: {i: {$lte: 7}}}}}");
expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
ASSERT_FALSE(expr.getValue()->matchesBSON(fromjson("{foo: [0, 99, 1, 2]}")));
}
TEST(InternalSchemaMatchArrayIndexMatchExpression, MatchesIfNotEnoughArrayElements) {
auto filter = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 0, namePlaceholder: 'i', expression: {i: 1}}}}");
boost::intrusive_ptr expCtx(new ExpressionContextForTest());
auto expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
ASSERT_TRUE(expr.getValue()->matchesBSON(fromjson("{foo: []}")));
filter = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 4, namePlaceholder: 'i', expression: {i: 1}}}}");
expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
ASSERT_TRUE(expr.getValue()->matchesBSON(fromjson("{foo: ['no', 'no', 'no', 'no']}")));
}
TEST(InternalSchemaMatchArrayIndexMatchExpression, EquivalentToClone) {
auto filter = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 0, namePlaceholder: 'i', expression: {i: {$type: 'number'}}}}}");
boost::intrusive_ptr expCtx(new ExpressionContextForTest());
auto expr = MatchExpressionParser::parse(filter, expCtx);
ASSERT_OK(expr.getStatus());
auto clone = expr.getValue()->shallowClone();
ASSERT_TRUE(expr.getValue()->equivalent(clone.get()));
}
TEST(InternalSchemaMatchArrayIndexMatchExpression, HasSingleChild) {
auto query = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 0, namePlaceholder: 'i', expression: {i: {$type: 'number'}}}}}");
boost::intrusive_ptr expCtx(new ExpressionContextForTest());
auto objMatch = MatchExpressionParser::parse(query, expCtx);
ASSERT_OK(objMatch.getStatus());
ASSERT_EQ(objMatch.getValue()->numChildren(), 1U);
ASSERT(objMatch.getValue()->getChild(0));
}
DEATH_TEST(InternalSchemaMatchArrayIndexMatchExpression,
GetChildFailsIndexGreaterThanZero,
"Invariant failure i == 0") {
auto query = fromjson(
"{foo: {$_internalSchemaMatchArrayIndex:"
"{index: 0, namePlaceholder: 'i', expression: {i: {$type: 'number'}}}}}");
boost::intrusive_ptr expCtx(new ExpressionContextForTest());
auto objMatch = MatchExpressionParser::parse(query, expCtx);
ASSERT_OK(objMatch.getStatus());
objMatch.getValue()->getChild(1);
}
} // namespace
} // namespace mongo