/// <summary>
/// Creates a new <see cref="Delegate"/> instance.
/// </summary>
/// <param name="request">The request that describes what to create.</param>
/// <param name="context">A context that can be used to create other specimens.</param>
/// <exception cref="ArgumentNullException"><paramref name="context"/> is null.</exception>
/// <returns>
/// A new <see cref="Delegate"/> instance, if <paramref name="request"/> is a request for a
/// <see cref="Delegate"/>; otherwise, a <see cref="NoSpecimen"/> instance.
/// </returns>
public object Create(object request, ISpecimenContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var delegateType = request as Type;
if (delegateType == null)
{
return(new NoSpecimen());
}
if (!typeof(Delegate).GetTypeInfo().IsAssignableFrom(delegateType))
{
return(new NoSpecimen());
}
var delegateMethod = delegateType.GetTypeInfo().GetMethod("Invoke");
var methodSpecimenParams = DelegateGenerator.CreateMethodSpecimenParameters(delegateMethod);
var methodSpecimenBody = DelegateGenerator.CreateMethodSpecimenBody(delegateMethod, context);
var delegateSpecimen = Expression.Lambda(delegateType, methodSpecimenBody, methodSpecimenParams).Compile();
return(delegateSpecimen);
}
public override void OneTimeSetup()
{
_delegateGeneratorInstanceType = typeof(DelegateGenerator);
_delegateGeneratorInstanceFixture = this.Create <DelegateGenerator>(true);
_delegateGeneratorInstance = _delegateGeneratorInstanceFixture ?? this.Create <DelegateGenerator>(false);
CurrentInstance = _delegateGeneratorInstanceFixture;
ConfigureIgnoringTests(); // Configure ignoring tests.
}
public void AUT_DelegateGenerator_Instantiated_Without_Parameter_No_Throw_Exception_Test()
{
// Arrange
DelegateGenerator instance = null;
// Act
var exception = CreateAnalyzer.GetThrownExceptionWhenCreate(out instance);
// Assert
instance.ShouldNotBeNull();
exception.ShouldBeNull();
}
public void AUT_DelegateGenerator_Constructor_Instantiation_With_Parameter_Test()
{
// Arrange
var delegateSpecification = this.CreateType <IRequestSpecification>();
DelegateGenerator instance = null;
Exception creationException = null;
// Act
Action createAction = () => instance = new DelegateGenerator(delegateSpecification);
creationException = ActionAnalyzer.GetActionException(createAction);
// Assert
instance.ShouldNotBeNull();
_delegateGeneratorInstance.ShouldNotBeNull();
_delegateGeneratorInstanceFixture.ShouldNotBeNull();
Should.NotThrow(createAction);
}
