Initial commit

test/common/bufferedseekablereadstream.h

@@ -0,0 +1,94 @@
+#include <cxxtest/TestSuite.h>
+
+#include "common/memstream.h"
+#include "common/bufferedstream.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::SeekableReadStream &ssrs
+			= *Common::wrapBufferedSeekableReadStream(&ms, 4, DisposeAfterUse::NO);
+
+		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());
+
+		delete &ssrs;
+	}
+
+	void test_seek() {
+		byte contents[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+		Common::MemoryReadStream ms(contents, 10);
+
+		Common::SeekableReadStream &ssrs
+			= *Common::wrapBufferedSeekableReadStream(&ms, 4, DisposeAfterUse::NO);
+		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);
+
+		ssrs.seek(5, SEEK_CUR);
+		TS_ASSERT_EQUALS(ssrs.pos(), 8);
+		ssrs.seek(-1, SEEK_CUR);
+		TS_ASSERT_EQUALS(ssrs.pos(), 7);
+		b = ssrs.readByte();
+		TS_ASSERT_EQUALS(b, 7);
+
+		byte readBuffer[8];
+		ssrs.seek(0, SEEK_SET);
+		TS_ASSERT_EQUALS(ssrs.pos(), 0);
+		ssrs.readByte();
+		b = ssrs.read(&readBuffer, 8);
+		ssrs.seek(-1, SEEK_CUR);
+		TS_ASSERT_EQUALS(ssrs.pos(), 8);
+		b = ssrs.readByte();
+		TS_ASSERT_EQUALS(b, 8);
+
+		delete &ssrs;
+	}
+};