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");
}
public void BindApplyWithAggregateShouldReturnApplyClause()
{
var tokens = _parser.ParseApply("aggregate(UnitPrice with sum as TotalPrice)");
var binder = new ApplyBinder(FakeBindMethods.BindSingleValueProperty, _bindingState);
var actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
var transformations = actual.Transformations.ToList();
var aggregate = transformations[0] as AggregateTransformationNode;
aggregate.Should().NotBeNull();
aggregate.Kind.Should().Be(TransformationNodeKind.Aggregate);
aggregate.Statements.Should().NotBeNull();
aggregate.Statements.Should().HaveCount(1);
var statements = aggregate.Statements.ToList();
var statement = statements[0];
VerifyIsFakeSingleValueNode(statement.Expression);
statement.WithVerb.Should().Be(AggregationVerb.Sum);
statement.AsAlias.Should().Be("TotalPrice");
}
/// <summary>
/// Parses an <paramref name="apply"/> clause on the given <paramref name="elementType"/>, binding
/// the text into a metadata-bound or dynamic properties to be applied using the provided model.
/// </summary>
/// <param name="apply">String representation of the apply expression.</param>
/// <param name="configuration">The configuration used for binding.</param>
/// <param name="elementType">Type that the apply clause refers to.</param>
/// <param name="navigationSource">Navigation source that the elements being filtered are from.</param>
/// <returns>A <see cref="ApplyClause"/> representing the metadata bound apply expression.</returns>
private static ApplyClause ParseApplyImplementation(string apply, ODataUriParserConfiguration configuration, IEdmType elementType, IEdmNavigationSource navigationSource)
{
ExceptionUtils.CheckArgumentNotNull(configuration, "configuration");
ExceptionUtils.CheckArgumentNotNull(elementType, "elementType");
ExceptionUtils.CheckArgumentNotNull(apply, "apply");
// Get the syntactic representation of the apply expression
UriQueryExpressionParser expressionParser = new UriQueryExpressionParser(configuration.Settings.FilterLimit, configuration.EnableCaseInsensitiveUriFunctionIdentifier);
var applyTokens = expressionParser.ParseApply(apply);
// Bind it to metadata
BindingState state = new BindingState(configuration);
state.ImplicitRangeVariable = NodeFactory.CreateImplicitRangeVariable(elementType.ToTypeReference(), navigationSource);
state.RangeVariables.Push(state.ImplicitRangeVariable);
MetadataBinder binder = new MetadataBinder(state);
ApplyBinder applyBinder = new ApplyBinder(binder.Bind, state);
ApplyClause boundNode = applyBinder.BindApply(applyTokens);
return(boundNode);
}
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);
Assert.NotNull(actual);
AggregateTransformationNode aggregate = Assert.IsType <AggregateTransformationNode>(Assert.Single(actual.Transformations));
Assert.Equal(TransformationNodeKind.Aggregate, aggregate.Kind);
Assert.NotNull(aggregate.AggregateExpressions);
AggregateExpression statement = Assert.IsType <AggregateExpression>(Assert.Single(aggregate.AggregateExpressions));
VerifyIsFakeSingleValueNode(statement.Expression);
Assert.Equal(AggregationMethod.Sum, statement.Method);
Assert.Equal("TotalPrice", statement.Alias);
}
