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livetrax/libs/audiographer/tests/chunker_test.cc

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#include "utils.h"
#include "audiographer/chunker.h"
#include <cassert>
using namespace AudioGrapher;
class ChunkerTest : public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE (ChunkerTest);
CPPUNIT_TEST (testSynchronousProcess);
CPPUNIT_TEST (testAsynchronousProcess);
CPPUNIT_TEST_SUITE_END ();
public:
void setUp()
{
frames = 128;
random_data = TestUtils::init_random_data(frames);
sink.reset (new VectorSink<float>());
chunker.reset (new Chunker<float>(frames * 2));
}
void tearDown()
{
delete [] random_data;
}
void testSynchronousProcess()
{
chunker->add_output (sink);
nframes_t frames_output = 0;
ProcessContext<float> const context (random_data, frames, 1);
chunker->process (context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((nframes_t) 0, frames_output);
chunker->process (context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, sink->get_array(), frames));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[frames], frames));
sink->reset();
chunker->process (context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((nframes_t) 0, frames_output);
chunker->process (context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, sink->get_array(), frames));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[frames], frames));
}
void testAsynchronousProcess()
{
assert (frames % 2 == 0);
chunker->add_output (sink);
nframes_t frames_output = 0;
ProcessContext<float> const half_context (random_data, frames / 2, 1);
ProcessContext<float> const context (random_data, frames, 1);
// 0.5
chunker->process (half_context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((nframes_t) 0, frames_output);
// 1.5
chunker->process (context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((nframes_t) 0, frames_output);
// 2.5
chunker->process (context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, sink->get_array(), frames / 2));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[frames / 2], frames));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[ 3 * frames / 2], frames / 2));
sink->reset();
// 3.5
chunker->process (context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((nframes_t) 0, frames_output);
// 4.0
chunker->process (half_context);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_equals (&random_data[frames / 2], sink->get_array(), frames / 2));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[frames / 2], frames));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[ 3 * frames / 2], frames / 2));
}
private:
boost::shared_ptr<Chunker<float> > chunker;
boost::shared_ptr<VectorSink<float> > sink;
float * random_data;
nframes_t frames;
};
CPPUNIT_TEST_SUITE_REGISTRATION (ChunkerTest);