public void LayoutGroupOnMeasure()
{
tlog.Debug(tag, $"LayoutGroupOnMeasure START");
flagOnMeasureOverride = false;
Assert.False(flagOnMeasureOverride, "flagOnMeasureOverride should be false initial");
LayoutItem layoutItem = new LinearLayout();
View view = new View()
{
ExcludeLayouting = false,
Size = new Size(100, 150)
};
layoutItem.AttachToOwner(view);
var testingTarget = new MyLayoutGroup();
Assert.IsNotNull(testingTarget, "null handle");
Assert.IsInstanceOf <LayoutGroup>(testingTarget, "Should be an instance of LayoutGroup type.");
testingTarget.AttachToOwner(view);
testingTarget.Add(layoutItem);
MeasureSpecification measureWidth = new MeasureSpecification(new LayoutLength(50.0f), MeasureSpecification.ModeType.AtMost);
MeasureSpecification measureHeight = new MeasureSpecification(new LayoutLength(50.0f), MeasureSpecification.ModeType.AtMost);
testingTarget.OnMeasureTest(measureWidth, measureHeight);
Assert.True(flagOnMeasureOverride, "LayoutGroup overridden method not invoked.");
// Test LayoutChildren.Count == 0
flagOnMeasureOverride = false;
Assert.False(flagOnMeasureOverride, "flagOnMeasureOverride should be false initial");
testingTarget.Remove(layoutItem);
testingTarget.OnMeasureTest(measureWidth, measureHeight);
Assert.True(flagOnMeasureOverride, "LayoutGroup overridden method not invoked.");
testingTarget.Dispose();
tlog.Debug(tag, $"LayoutGroupOnMeasure END (OK)");
}