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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/db/exec/sbe/expression_test_base.h"
#include "mongo/db/exec/sbe/values/bson.h"
#include "mongo/db/query/datetime/date_time_support.h"
namespace mongo::sbe {
class SBECoerceToStringTest : public EExpressionTestFixture {
public:
void runAndAssertNothing(const vm::CodeFragment* compiledExpr) {
auto [runTag, runVal] = runCompiledExpression(compiledExpr);
value::ValueGuard guard(runTag, runVal);
ASSERT_EQUALS(runTag, sbe::value::TypeTags::Nothing);
ASSERT_EQUALS(runVal, 0);
}
void runAndAssertExpression(const vm::CodeFragment* compiledExpr,
const std::string& expectedString) {
auto [runTag, runVal] = runCompiledExpression(compiledExpr);
value::ValueGuard guard(runTag, runVal);
ASSERT_EQUALS(value::getStringView(runTag, runVal), expectedString);
}
};
TEST_F(SBECoerceToStringTest, BasicCoerceToString) {
value::OwnedValueAccessor coerceToStringAccessor;
auto coerceToStringSlot = bindAccessor(&coerceToStringAccessor);
auto coerceToStringExpr = sbe::makeE<sbe::EFunction>(
"coerceToString", sbe::makeEs(makeE<EVariable>(coerceToStringSlot)));
auto compiledExpr = compileExpression(*coerceToStringExpr);
// Int32_t test.
coerceToStringAccessor.reset(sbe::value::TypeTags::NumberInt32,
value::bitcastFrom<int32_t>(42));
runAndAssertExpression(compiledExpr.get(), "42");
// Int64_t test.
coerceToStringAccessor.reset(sbe::value::TypeTags::NumberInt64,
value::bitcastFrom<int64_t>(42));
runAndAssertExpression(compiledExpr.get(), "42");
// Double test.
coerceToStringAccessor.reset(sbe::value::TypeTags::NumberDouble,
value::bitcastFrom<double>(42.213));
runAndAssertExpression(compiledExpr.get(), "42.213");
// Decimal test.
auto [decTag, decVal] = value::makeCopyDecimal(Decimal128(42.213));
coerceToStringAccessor.reset(decTag, decVal);
runAndAssertExpression(compiledExpr.get(), "42.2130000000000");
// BSONString test.
auto bsonString = BSON("string"
<< "hello");
auto bsonStringVal = value::bitcastFrom(bsonString["string"].value());
coerceToStringAccessor.reset(value::TypeTags::bsonString, bsonStringVal);
runAndAssertExpression(compiledExpr.get(), "hello");
// Date test.
coerceToStringAccessor.reset(sbe::value::TypeTags::Date, value::bitcastFrom<uint64_t>(4400));
runAndAssertExpression(compiledExpr.get(), "1970-01-01T00:00:04.400Z");
// TimeStamp test.
coerceToStringAccessor.reset(sbe::value::TypeTags::Timestamp,
value::bitcastFrom<uint64_t>(17179869186));
Timestamp ts(17179869186);
runAndAssertExpression(compiledExpr.get(), ts.toString());
// Nothing test.
coerceToStringAccessor.reset(sbe::value::TypeTags::Nothing, 0);
runAndAssertNothing(compiledExpr.get());
// BSONObj test.
auto bsonObj = BSON("number" << 42);
auto bsonData = value::bitcastFrom(bsonObj.objdata());
auto [bsonTag, bsonVal] = value::copyValue(value::TypeTags::bsonObject, bsonData);
coerceToStringAccessor.reset(bsonTag, bsonVal);
runAndAssertNothing(compiledExpr.get());
// Array test.
auto [arrTag, arrVal] = value::makeNewArray();
coerceToStringAccessor.reset(arrTag, arrVal);
runAndAssertNothing(compiledExpr.get());
// ArraySet test.
auto [arrSetTag, arrSetVal] = value::makeNewArraySet();
coerceToStringAccessor.reset(arrSetTag, arrSetVal);
runAndAssertNothing(compiledExpr.get());
}
} // namespace mongo::sbe
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