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#include <cxxtest/TestSuite.h>
#include "common/memstream.h"
class MemoryReadStreamTestSuite : public CxxTest::TestSuite {
public:
void test_seek_set() {
byte contents[] = { 'a', 'b', '\n', '\n', 'c', '\n' };
Common::MemoryReadStream ms(contents, sizeof(contents));
ms.seek(0, SEEK_SET);
TS_ASSERT_EQUALS(ms.pos(), 0);
TS_ASSERT(!ms.eos());
ms.seek(1, SEEK_SET);
TS_ASSERT_EQUALS(ms.pos(), 1);
TS_ASSERT(!ms.eos());
ms.seek(5, SEEK_SET);
TS_ASSERT_EQUALS(ms.pos(), 5);
TS_ASSERT(!ms.eos());
}
void test_seek_cur() {
byte contents[] = { 'a', 'b', '\n', '\n', 'c' };
Common::MemoryReadStream ms(contents, sizeof(contents));
ms.seek(3, SEEK_CUR);
TS_ASSERT_EQUALS(ms.pos(), 3);
TS_ASSERT(!ms.eos());
ms.seek(-1, SEEK_CUR);
TS_ASSERT_EQUALS(ms.pos(), 2);
TS_ASSERT(!ms.eos());
ms.seek(3, SEEK_CUR);
TS_ASSERT_EQUALS(ms.pos(), 5);
TS_ASSERT(!ms.eos());
ms.seek(-1, SEEK_CUR);
TS_ASSERT_EQUALS(ms.pos(), 4);
TS_ASSERT(!ms.eos());
}
void test_seek_end() {
byte contents[] = { 'a', 'b', '\n', '\n', 'c' };
Common::MemoryReadStream ms(contents, sizeof(contents));
ms.seek(0, SEEK_END);
TS_ASSERT_EQUALS(ms.pos(), 5);
TS_ASSERT(!ms.eos());
ms.seek(-1, SEEK_END);
TS_ASSERT_EQUALS(ms.pos(), 4);
TS_ASSERT(!ms.eos());
ms.seek(-5, SEEK_END);
TS_ASSERT_EQUALS(ms.pos(), 0);
TS_ASSERT(!ms.eos());
}
void test_seek_read_le() {
byte contents[] = { 1, 2, 3, 4, 5, 6, 7 };
Common::MemoryReadStream ms(contents, sizeof(contents));
TS_ASSERT_EQUALS(ms.readUint16LE(), 0x0201UL);
TS_ASSERT_EQUALS(ms.pos(), 2);
TS_ASSERT_EQUALS(ms.readUint32LE(), 0x06050403UL);
TS_ASSERT_EQUALS(ms.pos(), 6);
TS_ASSERT_EQUALS(ms.readByte(), 0x07);
TS_ASSERT_EQUALS(ms.pos(), 7);
TS_ASSERT(!ms.eos());
}
void test_seek_read_be() {
byte contents[] = { 1, 2, 3, 4, 5, 6, 7 };
Common::MemoryReadStream ms(contents, sizeof(contents));
TS_ASSERT_EQUALS(ms.readUint16BE(), 0x0102UL);
TS_ASSERT_EQUALS(ms.pos(), 2);
TS_ASSERT_EQUALS(ms.readUint32BE(), 0x03040506UL);
TS_ASSERT_EQUALS(ms.pos(), 6);
TS_ASSERT_EQUALS(ms.readByte(), 0x07);
TS_ASSERT_EQUALS(ms.pos(), 7);
TS_ASSERT(!ms.eos());
}
void test_eos() {
byte contents[] = { 1, 2, 3, 4, 5, 6, 7 };
Common::MemoryReadStream ms(contents, sizeof(contents));
// Read after the end of the stream
for (int32 i = 0; i <= ms.size(); ++i)
ms.readByte();
// The eos flag should be set here
TS_ASSERT(ms.eos());
// Seeking should reset the eos flag
ms.seek(0, SEEK_SET);
TS_ASSERT(!ms.eos());
}
};
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