public void ElementShouldBeVisible_IfInputIsAlphaNumeric(Key key, Visibility expected)
{
// arrange
_addSymbolView.Setup(x => x.Visibility).Returns(Visibility.Collapsed);
_addSymbolView.Setup(x => x.SetSymbol(It.Is <string>(s => s == ConvertToString(key))));
// act
VisibilityBehaviors.DoShowWhenKeystroke(_addSymbolView.Object, key);
// assert
_addSymbolView.VerifySet(x => x.Visibility = expected);
}
public void ShouldNotProcessIfKeystrokeIsNonAlphaNumeric(Key key)
{
// arrange
_addSymbolView.Setup(x => x.Visibility).Returns(Visibility.Collapsed);
_addSymbolView.Setup(x => x.SetSymbol(It.Is <string>(s => s == ConvertToString(key))));
// act
VisibilityBehaviors.DoShowWhenKeystroke(_addSymbolView.Object, key);
// assert
_addSymbolView.VerifySet(x => x.Visibility = Visibility.Collapsed, Times.Never);
_addSymbolView.VerifySet(x => x.Visibility = Visibility.Visible, Times.Never);
}