public void ModelFactorToSliderStep_RoundsToSteps()
{
SliderStepConverter converter = new SliderStepConverter(100, 10);
int step;
step = converter.ModelFactorToSliderStep(1.1 + 0.01);
Assert.AreEqual(1, step);
step = converter.ModelFactorToSliderStep(1.1 - 0.01);
Assert.AreEqual(1, step);
}
public void ModelFactorToValue_CalculatesCorrectly()
{
SliderStepConverter converter = new SliderStepConverter(100, 10);
double value;
value = converter.ModelFactorToValue(1.1);
Assert.AreEqual(100.0 * 1.1, value);
value = converter.ModelFactorToValue(0.9);
Assert.AreEqual(100.0 * 0.9, value);
}
public void SliderStepToModelFactor_CalculatesCorrectly()
{
SliderStepConverter converter = new SliderStepConverter(100, 10);
double factor;
// Step 0 is factor 1.0
factor = converter.SliderStepToModelFactor(0);
Assert.AreEqual(1.0, factor);
factor = converter.SliderStepToModelFactor(1);
Assert.AreEqual(110.0 / 100.0, factor);
factor = converter.SliderStepToModelFactor(-2);
Assert.AreEqual(80.0 / 100.0, factor);
}
public void ModelFactorToSliderStep_CalculatesCorrectly()
{
SliderStepConverter converter = new SliderStepConverter(100, 10);
int step;
// Factor 1.0 is step 0
step = converter.ModelFactorToSliderStep(1.0);
Assert.AreEqual(0, step);
step = converter.ModelFactorToSliderStep(1.1);
Assert.AreEqual(1, step);
step = converter.ModelFactorToSliderStep(0.8);
Assert.AreEqual(-2, step);
}
public void ModelFactorToValueAsInt_RoundsCorrectly()
{
SliderStepConverter converter = new SliderStepConverter(100, 10);
int value;
value = converter.ModelFactorToValueAsInt(1.1);
Assert.AreEqual(110, value);
value = converter.ModelFactorToValueAsInt(1.004);
Assert.AreEqual(100, value);
value = converter.ModelFactorToValueAsInt(1.0051);
Assert.AreEqual(101, value);
value = converter.ModelFactorToValueAsInt(0.9951);
Assert.AreEqual(100, value);
value = converter.ModelFactorToValueAsInt(0.994);
Assert.AreEqual(99, value);
}