1 files changed, 53 insertions, 0 deletions
diff --git a/libs/audiographer/tests/peak_reader_test.cc b/libs/audiographer/tests/peak_reader_test.cc
new file mode 100644
index 0000000000..dce03b6caf
--- /dev/null
+++ b/libs/audiographer/tests/peak_reader_test.cc
@@ -0,0 +1,53 @@
+#include "utils.h"
+#include "audiographer/peak_reader.h"
+
+using namespace AudioGrapher;
+
+class PeakReaderTest : public CppUnit::TestFixture
+{
+  CPPUNIT_TEST_SUITE (PeakReaderTest);
+  CPPUNIT_TEST (testProcess);
+  CPPUNIT_TEST_SUITE_END ();
+
+  public:
+	void setUp()
+	{
+		frames = 128;
+		random_data = TestUtils::init_random_data(frames);
+	}
+
+	void tearDown()
+	{
+		delete [] random_data;
+	}
+
+	void testProcess()
+	{
+		reader.reset (new PeakReader());
+		ProcessContext<float> c (random_data, frames, 1);
+		
+		float peak = 1.5;
+		random_data[10] = peak;
+		reader->process (c);
+		CPPUNIT_ASSERT_EQUAL(peak, reader->get_peak());
+		
+		peak = 2.0;
+		random_data[10] = peak;
+		reader->process (c);
+		CPPUNIT_ASSERT_EQUAL(peak, reader->get_peak());
+		
+		peak = -2.1;
+		random_data[10] = peak;
+		reader->process (c);
+		float expected = fabs(peak);
+		CPPUNIT_ASSERT_EQUAL(expected, reader->get_peak());
+	}
+
+  private:
+	boost::shared_ptr<PeakReader> reader;
+
+	float * random_data;
+	nframes_t frames;
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION (PeakReaderTest);