public void CanTranslateFetchCollectionClause()
{
var session = new Mock <ISession>();
var executor = new SpecificationExecutor();
var specification = new WithFetchCollection();
var queryable = executor.ExecuteSpecification(session.Object, specification);
var fetchManyMethodInfo = ReflectionHelper.FindMethod(
BindingFlags.Static | BindingFlags.Public,
typeof(EagerFetchingExtensionMethods),
nameof(EagerFetchingExtensionMethods.FetchMany),
null,
new ArgumentConstraint(typeof(IQueryable <>), 1),
new ArgumentConstraint(typeof(Expression <>).MakeGenericType(typeof(Func <,>)), 2));
var lambda = (MethodCallExpression)queryable.Expression;
Assert.Equal(ExpressionType.Call, lambda.NodeType);
Assert.Same(
fetchManyMethodInfo.MakeGenericMethod(typeof(User), typeof(Order)),
lambda.Method);
Assert.Same(
specification.Expression.Body,
((UnaryExpression)((LambdaExpression)((UnaryExpression)lambda.Arguments.ElementAt(1)).Operand).Body).Operand);
}
public void CanTranslateFetchCollectionClause()
{
var context = new Mock <Context>();
context
.Setup(x => x.Set <User>())
.Returns(new FakeSet <User>());
var executor = new SpecificationExecutor();
var specification = new WithFetchCollection();
var queryable = executor.ExecuteSpecification(context.Object, specification);
var fetchMethodInfo = ReflectionHelper.FindMethod(
BindingFlags.Static | BindingFlags.Public,
typeof(EntityFrameworkQueryableExtensions),
nameof(EntityFrameworkQueryableExtensions.Include),
null,
new ArgumentConstraint(typeof(IQueryable <>), 1),
new ArgumentConstraint(typeof(Expression <>).MakeGenericType(typeof(Func <,>)), 2));
var lambda = (MethodCallExpression)queryable.Expression;
Assert.Equal(ExpressionType.Call, lambda.NodeType);
Assert.Same(
fetchMethodInfo.MakeGenericMethod(typeof(User), typeof(ICollection <Order>)),
lambda.Method);
Assert.Same(
specification.Expression.Body,
((LambdaExpression)((UnaryExpression)lambda.Arguments.ElementAt(1)).Operand).Body);
}
