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#include "tests/utils.h"
#include "audiographer/general/chunker.h"
#include <cassert>
using namespace AudioGrapher;
class ChunkerTest : public CppUnit::TestFixture
{
// TODO: Test EndOfInput handling
CPPUNIT_TEST_SUITE (ChunkerTest);
CPPUNIT_TEST (testSynchronousProcess);
CPPUNIT_TEST (testAsynchronousProcess);
CPPUNIT_TEST (testChoppingProcess);
CPPUNIT_TEST (testEndOfInputFlagHandling);
CPPUNIT_TEST_SUITE_END ();
public:
void setUp()
{
samples = 128;
random_data = TestUtils::init_random_data(samples);
sink.reset (new VectorSink<float>());
chunker.reset (new Chunker<float>(samples * 2));
}
void tearDown()
{
delete [] random_data;
}
void testSynchronousProcess()
{
chunker->add_output (sink);
samplecnt_t samples_output = 0;
ProcessContext<float> const context (random_data, samples, 1);
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((samplecnt_t) 0, samples_output);
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * samples, samples_output);
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, sink->get_array(), samples));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[samples], samples));
sink->reset();
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((samplecnt_t) 0, samples_output);
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * samples, samples_output);
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, sink->get_array(), samples));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[samples], samples));
}
void testAsynchronousProcess()
{
assert (samples % 2 == 0);
chunker->add_output (sink);
samplecnt_t samples_output = 0;
ProcessContext<float> const half_context (random_data, samples / 2, 1);
ProcessContext<float> const context (random_data, samples, 1);
// 0.5
chunker->process (half_context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((samplecnt_t) 0, samples_output);
// 1.5
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((samplecnt_t) 0, samples_output);
// 2.5
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * samples, samples_output);
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, sink->get_array(), samples / 2));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[samples / 2], samples));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[ 3 * samples / 2], samples / 2));
sink->reset();
// 3.5
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((samplecnt_t) 0, samples_output);
// 4.0
chunker->process (half_context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (2 * samples, samples_output);
CPPUNIT_ASSERT (TestUtils::array_equals (&random_data[samples / 2], sink->get_array(), samples / 2));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[samples / 2], samples));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[ 3 * samples / 2], samples / 2));
}
void testChoppingProcess()
{
sink.reset (new AppendingVectorSink<float>());
assert (samples % 2 == 0);
chunker.reset (new Chunker<float>(samples / 4));
chunker->add_output (sink);
samplecnt_t samples_output = 0;
ProcessContext<float> const half_context (random_data, samples / 2, 1);
ProcessContext<float> const context (random_data, samples, 1);
// 0.5
chunker->process (half_context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((samplecnt_t) samples / 2, samples_output);
// 1.5
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL ((samplecnt_t) samples / 2 * 3, samples_output);
// 2.5
chunker->process (context);
samples_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (samples / 2 * 5, samples_output);
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, sink->get_array(), samples / 2));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[samples / 2], samples));
CPPUNIT_ASSERT (TestUtils::array_equals (random_data, &sink->get_array()[ 3 * samples / 2], samples / 2));
}
void testEndOfInputFlagHandling()
{
boost::shared_ptr<ProcessContextGrabber<float> > grabber(new ProcessContextGrabber<float>());
assert (samples % 2 == 0);
chunker.reset (new Chunker<float>(samples));
chunker->add_output (grabber);
ProcessContext<float> const half_context (random_data, samples / 2, 1);
ProcessContext<float> const context (random_data, samples, 1);
context.set_flag(ProcessContext<>::EndOfInput);
// Process 0.5 then 1.0
chunker->process (half_context);
chunker->process (context);
// Should output two contexts
CPPUNIT_ASSERT_EQUAL((int)grabber->contexts.size(), 2);
ProcessContextGrabber<float>::ContextList::iterator it = grabber->contexts.begin();
// first 1.0 not end of input
CPPUNIT_ASSERT_EQUAL(it->samples(), samples);
CPPUNIT_ASSERT(!it->has_flag(ProcessContext<>::EndOfInput));
// Then 0.5 with end of input
++it;
CPPUNIT_ASSERT_EQUAL(it->samples(), samples / 2);
CPPUNIT_ASSERT(it->has_flag(ProcessContext<>::EndOfInput));
}
private:
boost::shared_ptr<Chunker<float> > chunker;
boost::shared_ptr<VectorSink<float> > sink;
float * random_data;
samplecnt_t samples;
};
CPPUNIT_TEST_SUITE_REGISTRATION (ChunkerTest);
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