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#include <cxxtest/TestSuite.h>
#include "common/stream.h"
class BufferedSeekableReadStreamTestSuite : public CxxTest::TestSuite {
public:
void test_traverse() {
byte contents[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
Common::MemoryReadStream ms(contents, 10);
Common::BufferedSeekableReadStream ssrs(&ms, 4);
byte i, b;
for (i = 0; i < 10; ++i) {
TS_ASSERT(!ssrs.eos());
TS_ASSERT_EQUALS(i, ssrs.pos());
ssrs.read(&b, 1);
TS_ASSERT_EQUALS(i, b);
}
TS_ASSERT(!ssrs.eos());
TS_ASSERT_EQUALS((uint)0, ssrs.read(&b, 1));
TS_ASSERT(ssrs.eos());
}
void test_seek() {
byte contents[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
Common::MemoryReadStream ms(contents, 10);
Common::BufferedSeekableReadStream ssrs(&ms, 4);
byte b;
TS_ASSERT_EQUALS(ssrs.pos(), 0);
ssrs.seek(1, SEEK_SET);
TS_ASSERT_EQUALS(ssrs.pos(), 1);
b = ssrs.readByte();
TS_ASSERT_EQUALS(b, 1);
ssrs.seek(5, SEEK_CUR);
TS_ASSERT_EQUALS(ssrs.pos(), 7);
b = ssrs.readByte();
TS_ASSERT_EQUALS(b, 7);
ssrs.seek(-3, SEEK_CUR);
TS_ASSERT_EQUALS(ssrs.pos(), 5);
b = ssrs.readByte();
TS_ASSERT_EQUALS(b, 5);
ssrs.seek(0, SEEK_END);
TS_ASSERT_EQUALS(ssrs.pos(), 10);
TS_ASSERT(!ssrs.eos());
b = ssrs.readByte();
TS_ASSERT(ssrs.eos());
ssrs.seek(-3, SEEK_END);
TS_ASSERT(!ssrs.eos());
TS_ASSERT_EQUALS(ssrs.pos(), 7);
b = ssrs.readByte();
TS_ASSERT_EQUALS(b, 7);
ssrs.seek(-8, SEEK_END);
TS_ASSERT_EQUALS(ssrs.pos(), 2);
b = ssrs.readByte();
TS_ASSERT_EQUALS(b, 2);
}
};
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