Initial commit

test/common/bufferedreadstream.h

@@ -0,0 +1,60 @@
+#include <cxxtest/TestSuite.h>
+
+#include "common/memstream.h"
+#include "common/bufferedstream.h"
+
+class BufferedReadStreamTestSuite : 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);
+
+		// Use a buffer size of 4 -- note that 10 % 4 != 0,
+		// so we test what happens if the cache can't be completely
+		// refilled.
+		Common::ReadStream &srs = *Common::wrapBufferedReadStream(&ms, 4, DisposeAfterUse::NO);
+
+		byte i, b;
+		for (i = 0; i < 10; ++i) {
+			TS_ASSERT(!srs.eos());
+
+			b = srs.readByte();
+			TS_ASSERT_EQUALS(i, b);
+		}
+
+		TS_ASSERT(!srs.eos());
+
+		b = srs.readByte();
+
+		TS_ASSERT(srs.eos());
+
+		delete &srs;
+	}
+
+	void test_traverse2() {
+		byte contents[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
+		Common::MemoryReadStream ms(contents, 9);
+
+		Common::ReadStream &brs = *Common::wrapBufferedReadStream(&ms, 4, DisposeAfterUse::NO);
+
+		// Traverse the stream with reads of 2 bytes. The size is not
+		// a multiple of 2, so we can test the final partial read.
+
+		byte i, b[2];
+		for (i = 0; i < 4; ++i) {
+			TS_ASSERT(!brs.eos());
+
+			int n = brs.read(b, 2);
+			TS_ASSERT_EQUALS(n, 2);
+		}
+
+		TS_ASSERT(!brs.eos());
+
+		int n = brs.read(b, 2);
+		TS_ASSERT_EQUALS(n, 1);
+
+		TS_ASSERT(brs.eos());
+
+		delete &brs;
+	}
+};