public void When_IsAutoPropertyInheritance_Multi_Disabled()
{
var SUT = new MyObject();
var inner = new SubObject();
var inner2 = new SubObject();
SUT.SubObject = inner;
inner.Inner = inner2;
Assert.IsNull(inner.LastDataContextChangedValue);
SUT.DataContext = 42;
Assert.IsNull(inner.LastDataContextChangedValue);
Assert.AreEqual("", inner.MyStringProperty);
Assert.AreEqual("", inner2.MyStringProperty);
inner2.SetBinding(
SubObject.MyStringPropertyProperty,
new Binding()
{
}
);
Assert.AreEqual(42, inner.LastDataContextChangedValue);
Assert.AreEqual(42, inner2.LastDataContextChangedValue);
Assert.AreEqual("", inner.MyStringProperty);
Assert.AreEqual("42", inner2.MyStringProperty);
}
public void When_IsAutoPropertyInheritance_Disabled_TemplatedParent_Binding()
{
var SUT = new MyObject();
var inner = new SubObject();
SUT.SubObject = inner;
Assert.IsNull(inner.LastDataContextChangedValue);
var parent = new Grid()
{
Tag = 42
};
SUT.TemplatedParent = parent;
Assert.IsNull(inner.LastTemplatedParentChangedValue);
inner.SetBinding(
SubObject.DataContextProperty,
new Binding()
{
Path = "Tag",
RelativeSource = RelativeSource.TemplatedParent
}
);
Assert.AreEqual(parent, inner.LastTemplatedParentChangedValue);
Assert.AreEqual(42, inner.DataContext);
}
public void When_PropertyReset_Then_Parent_removed()
{
var SUT = new MyObject();
var inner = new SubObject();
SUT.SubObject = inner;
Assert.AreEqual(SUT, inner.GetParent());
SUT.SubObject = null;
Assert.IsNull(inner.GetParent());
}
public void When_IsAutoPropertyInheritance_Disabled_TemplatedParent()
{
var SUT = new MyObject();
var inner = new SubObject();
SUT.SubObject = inner;
Assert.IsNull(inner.LastDataContextChangedValue);
var parent = new Grid();
SUT.TemplatedParent = parent;
Assert.IsNull(inner.LastTemplatedParentChangedValue);
Assert.AreEqual(parent, inner.TemplatedParent);
Assert.AreEqual(parent, inner.LastTemplatedParentChangedValue);
}
public void When_IsAutoPropertyInheritance_Multi_DataContext_Read_Top()
{
var SUT = new MyObject();
var inner = new SubObject();
var inner2 = new SubObject();
SUT.SubObject = inner;
inner.Inner = inner2;
Assert.IsNull(inner.LastDataContextChangedValue);
SUT.DataContext = 42;
Assert.IsNull(inner.LastDataContextChangedValue);
Assert.IsNull(inner2.LastDataContextChangedValue);
// The order is important
Assert.AreEqual(42, inner2.DataContext);
Assert.AreEqual(42, inner.DataContext);
Assert.AreEqual(42, inner.LastDataContextChangedValue);
Assert.AreEqual(42, inner2.LastDataContextChangedValue);
}
