public void ZoomScale_ZoomOnCenterValue(AxisType axisType)
{
IFixture fixture = new Fixture().Customize(new ZedGraphCustomization());
double zoomFraction = this.random.NextDouble() * 2;
var min = fixture.Create <double>();
double centerValue = min + fixture.Create <double>();
double max = centerValue + fixture.Create <double>();
Axis axis = fixture.Create <Axis>()
.OfType(axisType)
.WithScale(min, max);
Scale scale = axis.Scale;
double linearMax = scale.Linearize(max);
double linearMin = scale.Linearize(min);
double expectedMin = scale.DeLinearize(centerValue - ((centerValue - linearMin) * zoomFraction));
double expectedMax = scale.DeLinearize(centerValue + ((linearMax - centerValue) * zoomFraction));
var sut = new TestZedGraphControl();
sut.ZoomScale(axis, zoomFraction, centerValue, ZoomOnCenterValue);
Assert.That(
scale.Min,
Is.EqualTo(expectedMin)
.Within(0.001),
"The scale's minimum was not the expected value");
Assert.That(
scale.Max,
Is.EqualTo(expectedMax)
.Within(0.001),
"The scale's maximum was not the expected value");
Assert.That(scale.MinAuto, Is.False, "The scale's automatic minimum flag was not set to false");
Assert.That(scale.MinAuto, Is.False, "The scale's automatic maximum flag was not set to false");
}
public void ZoomScale_AxisIsNull_DoesNotThrowException()
{
IFixture fixture = new Fixture().Customize(new ZedGraphCustomization());
var sut = new TestZedGraphControl();
Assert.That(
() => sut.ZoomScale(null, fixture.Create <double>(), fixture.Create <double>(), fixture.Create <bool>()),
Throws.Nothing);
}
public void ZoomScale_ZoomFractionGreaterThanMaximum_ScaleDoesNotChange()
{
IFixture fixture = new Fixture().Customize(new ZedGraphCustomization());
var min = fixture.Create <double>();
var max = fixture.Create <double>();
Axis axis = fixture.Create <Axis>()
.WithScale(min, max);
Scale scale = axis.Scale;
scale.MinAuto = scale.MaxAuto = true;
var sut = new TestZedGraphControl();
sut.ZoomScale(axis, MaxZoomFraction, fixture.Create <double>(), fixture.Create <bool>());
Assert.That(scale.Min, Is.EqualTo(min), "The scale's minimum value has changed unexpectantly");
Assert.That(scale.Max, Is.EqualTo(max), "The scale's maximum value has changed unexpectantly");
Assert.That(scale.MinAuto, Is.True, "The scale's automatic minimum flag appears to have changed");
Assert.That(scale.MaxAuto, Is.True, "The scale's automatic maximum flag appears to have changed");
}
public void MouseWheel()
{
IFixture fixture = new Fixture().Customize(new ZedGraphCustomization());
var sut = new TestZedGraphControl();
}
