protected IAccessable MapExpressionToProperty<TProperty>(
Expression<Func<TSource, TProperty>> source,
Expression<Func<TTarget, TProperty>> target
)
{
Contract.Assert(source != null);
var association = new ExpressionToPropertyAssociation<TSource, TTarget, TProperty>(source, target);
_associations.Add(association);
return association;
}
public void TestInverseMappingDoesNothing()
{
var foo = new Foo {
Id = 10
};
Expression <Func <Foo, int> > source = _ => _.Id * _.Id;
var sut = new ExpressionToPropertyAssociation <Foo, Bar, int>(source, _ => _.Id);
var bar = CreateReader(sut)(foo);
bar.Should().NotBeNull();
foo.Id.Should().Be(10);
}
public void TestStringMapping()
{
var foo = new Foo {
Name = "123"
};
Expression <Func <Foo, int> > source = _ => _.Name.Length;
var sut = new ExpressionToPropertyAssociation <Foo, Bar, int>(source, _ => _.Id);
var expected = source.Compile()(foo);
var bar = CreateReader(sut)(foo);
bar.Should().NotBeNull();
bar.Id.Should().Be(expected);
}
public void TestInverseMappingAssignsOnWrite()
{
var foo = new Foo {
Component = new Baz()
};
var bar = new Bar {
Id = 11
};
Expression <Func <Foo, int> > source = _ => _.Component.Id;
var sut = new ExpressionToPropertyAssociation <Foo, Bar, int>(source, _ => _.Id);
sut.Write();
CreateWriter(sut)(bar, foo);
foo.Component.Id.Should().Be(11);
}
