Add test for sine_wave_cycle

scottmacphersonmusic · May 18, 2015 · 3e315b4 · 3e315b4
1 parent f3393c9
commit 3e315b4
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/test/note_test.rb b/test/note_test.rb
@@ -5,6 +5,7 @@ def setup
  @frequency = 220.to_f
  @duration = 2.0
  @sample_rate = 22050
+ @cycles_per_frame = @frequency / @sample_rate
  @note = MusicTheory::Note.new(frequency: @frequency, duration: @duration)
  end
 
@@ -14,7 +15,11 @@ def test_total_frames
  end
 
  def test_cycles_per_frame
- cycles_per_frame = @frequency / @sample_rate
- assert_equal cycles_per_frame, @note.cycles_per_frame
+ assert_equal @cycles_per_frame, @note.cycles_per_frame
+ end
+
+ def test_sine_wave_cycle
+ sine_wave_cycle = 2 * Math::PI * @cycles_per_frame
+ assert_equal sine_wave_cycle, @note.sine_wave_cycle
  end
 end