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#include "tests/utils.h"
#include "audiographer/general/normalizer.h"
#include "audiographer/general/peak_reader.h"
using namespace AudioGrapher;
class NormalizerTest : public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE (NormalizerTest);
CPPUNIT_TEST (testConstAmplify);
CPPUNIT_TEST_SUITE_END ();
public:
void setUp()
{
samples = 1024;
}
void tearDown()
{
delete [] random_data;
}
void testConstAmplify()
{
float target = 0.0;
random_data = TestUtils::init_random_data(samples, 0.5);
normalizer.reset (new Normalizer(target));
peak_reader.reset (new PeakReader());
sink.reset (new VectorSink<float>());
ProcessContext<float> const c (random_data, samples, 1);
peak_reader->process (c);
float peak = peak_reader->get_peak();
normalizer->alloc_buffer (samples);
normalizer->set_peak (peak);
normalizer->add_output (sink);
normalizer->process (c);
peak_reader->reset();
ConstProcessContext<float> normalized (sink->get_array(), samples, 1);
peak_reader->process (normalized);
peak = peak_reader->get_peak();
CPPUNIT_ASSERT (-FLT_EPSILON <= (peak - 1.0) && (peak - 1.0) <= 0.0);
}
private:
boost::shared_ptr<Normalizer> normalizer;
boost::shared_ptr<PeakReader> peak_reader;
boost::shared_ptr<VectorSink<float> > sink;
float * random_data;
samplecnt_t samples;
};
CPPUNIT_TEST_SUITE_REGISTRATION (NormalizerTest);
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