public void ApplyTemplate_Should_Create_Visual_Child()
{
var target = new TemplatedControl
{
Template = new FuncControlTemplate(_ => new Decorator
{
Child = new Panel
{
Children = new Controls
{
new TextBlock(),
new Border(),
}
}
}),
};
target.ApplyTemplate();
var types = target.GetVisualDescendents().Select(x => x.GetType()).ToList();
Assert.Equal(
new[]
{
typeof(Decorator),
typeof(Panel),
typeof(TextBlock),
typeof(Border)
},
types);
Assert.Empty(target.GetLogicalChildren());
}
public void Templated_Children_Should_Have_TemplatedParent_Set()
{
var target = new TemplatedControl
{
Template = new FuncControlTemplate(_ => new Decorator
{
Child = new Panel
{
Children = new Controls
{
new TextBlock(),
new Border(),
}
}
}),
};
target.ApplyTemplate();
var templatedParents = target.GetVisualDescendents()
.OfType<IControl>()
.Select(x => x.TemplatedParent)
.ToList();
Assert.Equal(4, templatedParents.Count);
Assert.True(templatedParents.All(x => x == target));
}
public void Template_Doesnt_Get_Executed_On_Set()
{
bool executed = false;
var template = new FuncControlTemplate(_ =>
{
executed = true;
return new Control();
});
var target = new TemplatedControl
{
Template = template,
};
Assert.False(executed);
}
public void Template_Result_Becomes_Visual_Child()
{
Control templateResult = new Control();
var template = new FuncControlTemplate(_ =>
{
return templateResult;
});
var target = new TemplatedControl
{
Template = template,
};
target.Measure(new Size(100, 100));
var children = target.GetVisualChildren().ToList();
Assert.Equal(new[] { templateResult }, children);
}
public void Template_Gets_Executed_On_Measure()
{
bool executed = false;
var template = new FuncControlTemplate(_ =>
{
executed = true;
return new Control();
});
var target = new TemplatedControl
{
Template = template,
};
target.Measure(new Size(100, 100));
Assert.True(executed);
}
public void Templated_Child_Should_Be_NameScope()
{
var target = new TemplatedControl
{
Template = new FuncControlTemplate(_ => new Decorator
{
Child = new Panel
{
Children = new Controls
{
new TextBlock(),
new Border(),
}
}
}),
};
target.ApplyTemplate();
Assert.NotNull(NameScope.GetNameScope((Visual)target.GetVisualChildren().Single()));
}
public void TemplatedParent_Is_Set_On_Generated_Template()
{
Control templateResult = new Control();
var template = new ControlTemplate(_ =>
{
return templateResult;
});
var target = new TemplatedControl
{
Template = template,
};
target.Measure(new Size(100, 100));
Assert.Equal(target, templateResult.TemplatedParent);
}
public void Templated_Child_Should_Have_ApplyTemplate_Called_With_Logical_Then_Visual_Parent()
{
var target = new TemplatedControl
{
Template = new FuncControlTemplate(_ => new ApplyTemplateTracker())
};
target.ApplyTemplate();
var child = (ApplyTemplateTracker)target.GetVisualChildren().Single();
Assert.Equal(
new[]
{
new Tuple<IVisual, ILogical>(null, target),
new Tuple<IVisual, ILogical>(target, target),
},
child.Invocations);
}
public void Templated_Child_Should_Have_Parent_Set()
{
var target = new TemplatedControl
{
Template = new FuncControlTemplate(_ => new Decorator())
};
target.ApplyTemplate();
var child = (Decorator)target.GetVisualChildren().Single();
Assert.Equal(target, child.Parent);
Assert.Equal(target, child.GetLogicalParent());
}
public void Nested_Templated_Control_Should_Not_Have_Template_Applied()
{
var target = new TemplatedControl
{
Template = new FuncControlTemplate(_ => new ScrollViewer())
};
target.ApplyTemplate();
var child = (ScrollViewer)target.GetVisualChildren().Single();
Assert.Empty(child.GetVisualChildren());
}