/*
* Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "ObjFW.h"
#import "ObjFWTest.h"
@interface OFMemoryStreamTests: OTTestCase
@end
static const char string[] = "abcdefghijkl";
@implementation OFMemoryStreamTests
- (void)testReadOnlyMemoryStream
{
OFMemoryStream *stream = [OFMemoryStream
streamWithMemoryAddress: (char *)string
size: sizeof(string)
writable: false];
char buffer[10];
/*
* Test the lowlevel methods, as otherwise OFStream will do one big
* read and we will not test OFMemoryStream.
*/
OTAssertEqual([stream lowlevelReadIntoBuffer: buffer length: 5], 5);
OTAssertEqual(memcmp(buffer, "abcde", 5), 0);
OTAssertEqual([stream lowlevelReadIntoBuffer: buffer length: 3], 3);
OTAssertEqual(memcmp(buffer, "fgh", 3), 0);
OTAssertEqual([stream lowlevelReadIntoBuffer: buffer length: 10], 5);
OTAssertEqual(memcmp(buffer, "ijkl", 5), 0);
OTAssertTrue([stream lowlevelIsAtEndOfStream]);
OTAssertEqual([stream lowlevelSeekToOffset: 0 whence: OFSeekCurrent],
sizeof(string));
OTAssertTrue([stream lowlevelIsAtEndOfStream]);
OTAssertEqual([stream lowlevelSeekToOffset: 4 whence: OFSeekSet], 4);
OTAssertFalse([stream lowlevelIsAtEndOfStream]);
OTAssertEqual([stream lowlevelReadIntoBuffer: buffer length: 10], 9);
OTAssertEqual(memcmp(buffer, "efghijkl", 9), 0);
OTAssertEqual([stream lowlevelSeekToOffset: -2 whence: OFSeekEnd], 11);
OTAssertEqual([stream lowlevelReadIntoBuffer: buffer length: 10], 2);
OTAssertEqual(memcmp(buffer, "l", 2), 0);
OTAssertEqual([stream lowlevelReadIntoBuffer: buffer length: 10], 0);
OTAssertThrowsSpecific([stream lowlevelWriteBuffer: "" length: 1],
OFWriteFailedException);
}
- (void)testReadWriteMemoryStream
{
OFMutableData *data = [OFMutableData dataWithCapacity: 13];
OFMemoryStream *stream;
[data increaseCountBy: 13];
stream = [OFMemoryStream streamWithMemoryAddress: data.mutableItems
size: data.count
writable: true];
OTAssertEqual([stream lowlevelWriteBuffer: "abcde" length: 5], 5);
OTAssertEqual([stream lowlevelWriteBuffer: "fgh" length: 3], 3);
OTAssertEqual([stream lowlevelWriteBuffer: "ijkl" length: 5], 5);
OTAssertEqual(memcmp(data.items, string, data.count), 0);
OTAssertEqual([stream lowlevelSeekToOffset: -3 whence: OFSeekEnd], 10);
OTAssertThrowsSpecific([stream lowlevelWriteBuffer: "xyz" length: 4],
OFWriteFailedException);
}
@end