public void ClipsAreValid_RightInvalid_ReturnsFalse()
 {
     Assert.False(TimelineTools.ClipsAreValid(1, -1));
 }
 public void ClipsAreValid_SameIndex_ReturnsFalse()
 {
     Assert.False(TimelineTools.ClipsAreValid(1, 1));
 }
 public void ClipsAreValid_LeftInvalid_ReturnsFalse()
 {
     Assert.False(TimelineTools.ClipsAreValid(-1, 1));
 }
 public void ClipsAreValid_ReturnsTrue()
 {
     Assert.True(TimelineTools.ClipsAreValid(1, 2));
 }