public void Calculate_DeltaPosZero_ReturnsFalse()
{
IScroller scroller = Substitute.For <IScroller>();
scroller.GetElementCursorOffsetInPixel(Arg.Any <float>(), Arg.Any <int>()).Returns(0f);
ElementIsScrolledToIncreaseCursorOffsetCalculator calculator = new ElementIsScrolledToIncreaseCursorOffsetCalculator(scroller);
float anyLocalPosOnAxis = 222222222f;
for (int i = 0; i < 2; i++)
{
bool actual = calculator.Calculate(0f, anyLocalPosOnAxis, i);
Assert.That(actual, Is.False);
}
}
public void Calculate_DeltaPosNonZero_ElementCursorOfffsetPixelIsNotZero_Various(float cursorOffsetInPixel, float deltaPosOnAxis, bool expected)
{
IScroller scroller = Substitute.For <IScroller>();
scroller.GetElementCursorOffsetInPixel(Arg.Any <float>(), Arg.Any <int>()).Returns(cursorOffsetInPixel);
ElementIsScrolledToIncreaseCursorOffsetCalculator calculator = new ElementIsScrolledToIncreaseCursorOffsetCalculator(scroller);
float anyLocalPosOnAxis = -1111111f;
for (int i = 0; i < 2; i++)
{
bool actual = calculator.Calculate(deltaPosOnAxis, anyLocalPosOnAxis, i);
Assert.That(actual, Is.EqualTo(expected));
}
}