public void PropertyContainer_Construct_ShouldConstructWhenDstContainerIsNull()
{
var src = new ClassContainerWithNestedClass {
Container = new ClassContainerWithPrimitives()
};
var dst = (ClassContainerWithNestedClass)null;
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(dst, Is.Not.Null);
Assert.That(dst.Container, Is.Not.Null);
}
}
public void PropertyContainer_Construct_ReferenceFieldConstructsNewInstanceWithDifferentSourceType()
{
var src = new StructContainerWithNestedStruct {
Container = new StructContainerWithPrimitives()
};
var dst = new ClassContainerWithNestedClass {
Container = null
};
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(dst.Container, Is.Not.Null);
}
}
public void PropertyContainer_Construct_ReferenceFieldAssignsNull()
{
var src = new ClassContainerWithNestedClass {
Container = null
};
var dst = new ClassContainerWithNestedClass {
Container = new ClassContainerWithPrimitives()
};
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(dst.Container, Is.Null);
}
}
public void PropertyContainer_Transfer_ReferenceFieldCopiesReference()
{
var src = new ClassContainerWithNestedClass {
Container = new ClassContainerWithPrimitives()
};
var dst = new ClassContainerWithNestedClass {
Container = null
};
using (var result = PropertyContainer.Transfer(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(dst.Container, Is.Not.Null);
Assert.That(ReferenceEquals(src.Container, dst.Container));
}
}
public void PropertyContainer_Construct_ReferenceFieldDoesNotDestroyExistingInstance()
{
var src = new ClassContainerWithNestedClass {
Container = new ClassContainerWithPrimitives()
};
var dst = new ClassContainerWithNestedClass {
Container = new ClassContainerWithPrimitives()
};
var reference = dst.Container;
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(ReferenceEquals(reference, dst.Container));
Assert.That(!ReferenceEquals(src.Container, dst.Container));
}
}
public void PropertyContainer_Transfer_ReferenceFieldWithDifferentSourceTypeDoesNotThrow()
{
var src = new StructContainerWithNestedStruct {
Container = new StructContainerWithPrimitives()
};
var dst = new ClassContainerWithNestedClass {
Container = null
};
Assert.DoesNotThrow(() =>
{
using (var result = PropertyContainer.Transfer(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
}
});
Assert.That(dst.Container, Is.Null);
}
public void PropertyContainer_Transfer_NestedPrimitiveFieldsWithDifferentContainerTypes()
{
var src = new StructContainerWithNestedStruct {
Container = new StructContainerWithPrimitives {
Int32Value = 10
}
};
var dst = new ClassContainerWithNestedClass {
Container = new ClassContainerWithPrimitives()
};
Assert.DoesNotThrow(() =>
{
using (var result = PropertyContainer.Transfer(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
}
});
Assert.That(dst.Container.Int32Value, Is.EqualTo(10));
}