libs/audiographer/tests/general/peak_reader_test.cc

   1 #include "tests/utils.h"
   2
   3 #include "audiographer/general/peak_reader.h"
   4
   5 using namespace AudioGrapher;
   6
   7 class PeakReaderTest : public CppUnit::TestFixture
   8 {
   9   CPPUNIT_TEST_SUITE (PeakReaderTest);
  10   CPPUNIT_TEST (testProcess);
  11   CPPUNIT_TEST_SUITE_END ();
  12
  13   public:
  14         void setUp()
  15         {
  16                 frames = 128;
  17                 random_data = TestUtils::init_random_data(frames);
  18         }
  19
  20         void tearDown()
  21         {
  22                 delete [] random_data;
  23         }
  24
  25         void testProcess()
  26         {
  27                 reader.reset (new PeakReader());
  28                 ProcessContext<float> c (random_data, frames, 1);
  29
  30                 float peak = 1.5;
  31                 random_data[10] = peak;
  32                 reader->process (c);
  33                 CPPUNIT_ASSERT_EQUAL(peak, reader->get_peak());
  34
  35                 peak = 2.0;
  36                 random_data[10] = peak;
  37                 reader->process (c);
  38                 CPPUNIT_ASSERT_EQUAL(peak, reader->get_peak());
  39
  40                 peak = -2.1;
  41                 random_data[10] = peak;
  42                 reader->process (c);
  43                 float expected = fabs(peak);
  44                 CPPUNIT_ASSERT_EQUAL(expected, reader->get_peak());
  45         }
  46
  47   private:
  48         boost::shared_ptr<PeakReader> reader;
  49
  50         float * random_data;
  51         framecnt_t frames;
  52 };
  53
  54 CPPUNIT_TEST_SUITE_REGISTRATION (PeakReaderTest);