public void NewExpressionWithArgumentsShouldBeCaptures()
{
Expression <Func <int, Customer> > projection = x => new Customer(x);
var visitor = new MaterializedTypesVisitor();
visitor.Visit(projection);
visitor.MaterializedTypes.Should().BeEquivalentTo(new[] { typeof(Customer) });
}
public void SelectExpressionWithNoTypes()
{
Expression <Func <int, int> > projection = x => x;
var visitor = new MaterializedTypesVisitor();
visitor.Visit(projection);
visitor.MaterializedTypes.Should().BeEmpty();
}
public void AnonymousTypeShouldBeDetected()
{
Expression <Func <CustomerEntity, object> > projection = x => new { x.Id };
var visitor = new MaterializedTypesVisitor();
visitor.Visit(projection);
visitor.MaterializedTypes.Should().HaveCount(1)
.And.ContainSingle(t => t.Name.StartsWith("<") && t.Name.Contains("AnonymousType"));
}
public void MultipleOccuranceOfTypeWillBeIncludedOnce()
{
Expression <Func <CustomerEntity, Customer> > projection = x => new Customer
{
DeliveryAddress = new Address(),
WorkAddress = new Address(),
};
var visitor = new MaterializedTypesVisitor();
visitor.Visit(projection);
visitor.MaterializedTypes.Should().BeEquivalentTo(typeof(Customer), typeof(Address));
}
public void SubselectsTypesShouldBeFound()
{
Expression <Func <CustomerEntity, Customer> > projection = x => new Customer
{
PhoneNumbers = x.PhoneNumbers.Select(pn => new Contact {
Number = (PhoneNumber)pn.Number, Location = pn.Location
}).ToList(),
};
var visitor = new MaterializedTypesVisitor();
visitor.Visit(projection);
visitor.MaterializedTypes.Should().BeEquivalentTo(typeof(Contact), typeof(Customer));
}