Add some (lame) first version of RawStream unit tests. Currently all it does it, checking, whether readBuffer works for 8bit and 16bit samples.

svn-id: r47849

1 files changed, 82 insertions, 0 deletions

diff --git a/test/sound/raw.h b/test/sound/raw.h
new file mode 100644
index 0000000000..bedee869ec
--- /dev/null
+++ b/test/sound/raw.h
@@ -0,0 +1,82 @@
+#include <cxxtest/TestSuite.h>
+
+#include "sound/decoders/raw.h"
+
+#include "common/stream.h"
+#include "common/endian.h"
+
+#include <math.h>
+#include <limits>
+
+class RawStreamTestSuite : public CxxTest::TestSuite
+{
+public:
+	template<typename T>
+	T *createSine(int sampleRate, int time) {
+		T *sine = (T *)malloc(sizeof(T) * time * sampleRate);
+
+		const T maxValue = std::numeric_limits<T>::max();
+
+		for (int i = 0; i < time * sampleRate; ++i)
+			sine[i] = (T)(sin((double)i / sampleRate * 2 * PI) * maxValue);
+
+		// Convert to BE
+		if (sizeof(T) == 2) {
+			for (int i = 0; i < time * sampleRate; ++i)
+				WRITE_BE_UINT16(&sine[i], sine[i]);
+		}
+
+		return sine;
+	}
+
+	template<typename T>
+	Audio::SeekableAudioStream *createSineStream(int sampleRate, int time, const T **sineP) {
+		T *sine = createSine<T>(sampleRate, time);
+
+		Common::SeekableReadStream *sD = new Common::MemoryReadStream((const byte *)sine, sizeof(T) * sampleRate * time, DisposeAfterUse::YES);
+		Audio::SeekableAudioStream *s = Audio::makeRawStream(sD, sampleRate, (sizeof(T) == 2) ? Audio::FLAG_16BITS : 0);
+
+		if (sineP)
+			*sineP = sine;
+
+		return s;
+	}
+
+	void test_read_buffer_8_bit_mono() {
+		const int sampleRate = 11025;
+		const int time = 2;
+
+		const int8 *sine = 0;
+		Audio::SeekableAudioStream *s = createSineStream<int8>(sampleRate, time, &sine);
+
+		int16 *buffer = new int16[sampleRate * time];
+		TS_ASSERT_EQUALS(s->readBuffer(buffer, sampleRate * time), sampleRate * time);
+
+		for (int i = 0; i < sampleRate * time; ++i)
+			TS_ASSERT_EQUALS(buffer[i], sine[i] << 8);
+
+		TS_ASSERT_EQUALS(s->endOfData(), true);
+
+		delete[] buffer;
+		delete s;
+	}
+
+	void test_read_buffer_16_bit_mono() {
+		const int sampleRate = 11025;
+		const int time = 2;
+
+		const int16 *sine = 0;
+		Audio::SeekableAudioStream *s = createSineStream<int16>(sampleRate, time, &sine);
+
+		int16 *buffer = new int16[sampleRate * time];
+		TS_ASSERT_EQUALS(s->readBuffer(buffer, sampleRate * time), sampleRate * time);
+
+		for (int i = 0; i < sampleRate * time; ++i)
+			TS_ASSERT_EQUALS(buffer[i], (int16)READ_BE_UINT16(&sine[i]));
+
+		TS_ASSERT_EQUALS(s->endOfData(), true);
+
+		delete[] buffer;
+		delete s;
+	}
+};