public void BindApplyWithAggregateShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("aggregate(UnitPrice with sum as TotalPrice)");
ApplyBinder binder = new ApplyBinder(FakeBindMethods.BindSingleComplexProperty, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
AggregateTransformationNode aggregate = transformations[0] as AggregateTransformationNode;
aggregate.Should().NotBeNull();
aggregate.Kind.Should().Be(TransformationNodeKind.Aggregate);
aggregate.AggregateExpressions.Should().NotBeNull();
aggregate.AggregateExpressions.Should().HaveCount(1);
List <AggregateExpressionBase> statements = aggregate.AggregateExpressions.ToList();
AggregateExpression statement = statements[0] as AggregateExpression;
statement.Should().NotBeNull();
VerifyIsFakeSingleValueNode(statement.Expression);
statement.Method.Should().Be(AggregationMethod.Sum);
statement.Alias.Should().Be("TotalPrice");
}
