public void ParentChanged_Attached_Methods_Should_Be_Called_In_Right_Order()
{
var target = new TestRoot();
var child = new TestVisual();
int changed = 0;
int attched = 0;
int i = 1;
child.VisualParentChangedCalled += (s, e) => changed = i++;
child.AttachedToVisualTreeCalled += (s, e) => attched = i++;
target.AddChild(child);
Assert.Equal(1, changed);
Assert.Equal(2, attched);
}
public void Adding_Children_Should_Fire_OnAttachedToVisualTree()
{
var child2 = new TestVisual();
var child1 = new TestVisual { Child = child2 };
var root = new TestRoot();
var called1 = false;
var called2 = false;
child1.AttachedToVisualTree += (s, e) => called1 = true;
child2.AttachedToVisualTree += (s, e) => called2 = true;
root.Child = child1;
Assert.True(called1);
Assert.True(called2);
}
public void ParentChanged_Detached_Methods_Should_Be_Called_In_Right_Order()
{
var target = new TestRoot();
var child = new TestVisual();
int changed = 0;
int detached = 0;
int i = 1;
target.AddChild(child);
child.VisualParentChangedCalled += (s, e) => changed = i++;
child.DetachedFromVisualTreeCalled += (s, e) => detached = i++;
target.ClearChildren();
Assert.Equal(1, changed);
Assert.Equal(2, detached);
}
public void Removing_Children_Should_Fire_OnDetachedFromVisualTree()
{
var child2 = new TestVisual();
var child1 = new TestVisual { Child = child2 };
var root = new TestRoot();
var called1 = false;
var called2 = false;
root.Child = child1;
child1.DetachedFromVisualTree += (s, e) => called1 = true;
child2.DetachedFromVisualTree += (s, e) => called2 = true;
root.Child = null;
Assert.True(called1);
Assert.True(called2);
}
public void Controls_Should_Remove_Themselves_From_NameScopes_In_Attached_Property()
{
var child2 = new TestVisual { Name = "bar" };
var child1 = new TestVisual { Name = "foo", Child = child2,[NameScope.NameScopeProperty] = new NameScope() };
var root = new TestRoot { Child = child1 };
root.Child = null;
Assert.Null(root.Find("foo"));
Assert.Null(root.Find("bar"));
Assert.Null(NameScope.GetNameScope(child1).Find("bar"));
}
public void Controls_Should_Remove_Themselves_From_Root_NameScope()
{
var child2 = new TestVisual { Name = "bar" };
var child1 = new TestVisual { Name = "foo", Child = child2 };
var root = new TestRoot { Child = child1 };
root.Child = null;
Assert.Null(root.Find("foo"));
Assert.Null(root.Find("bar"));
}
public void Controls_Should_Add_Themselves_To_NameScopes_In_Attached_Property()
{
var child2 = new TestVisual { Name = "bar", [NameScope.NameScopeProperty] = new NameScope() };
var child1 = new TestVisual { Name = "foo", Child = child2};
var root = new TestRoot { Child = child1 };
Assert.Same(child1, root.Find("foo"));
Assert.Null(root.Find("bar"));
Assert.Same(child2, NameScope.GetNameScope(child2).Find("bar"));
}
public void Controls_Should_Add_Themselves_To_Root_NameScope()
{
var child2 = new TestVisual { Name = "bar" };
var child1 = new TestVisual { Name = "foo", Child = child2 };
var root = new TestRoot { Child = child1 };
Assert.Same(child1, root.Find("foo"));
Assert.Same(child2, root.Find("bar"));
}