Assign Class

Typemock Isolator Developer Guide

Passing this class as to Args as a Parameter Checker to mock ref and out parameters. Enterprise Edition users can swap normal argument too. See IParameters

Inheritance Hierarchy

SystemObject
TypeMockAssign

Namespace: TypeMock
Assembly: TypeMock (in TypeMock.dll) Version: 9.3.8.0 (9.3.8.0)

Syntax

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public class Assign

Public Class Assign

The Assign type exposes the following members.

Constructors

	Name	Description
	Assign	Create a new Assign object that will mock ref and out arguments

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Methods

	Name	Description
	AndCheck	Validate the parameter before assigning it a value.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsCheckingSameType	A boolean method the checks if the "other" object is the same type as the object that called the method.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

Use this class to mock ref and out parameters. Enterprise Edition Users can use the Assign class to replace arguments of a method at run time. This is useful in conjunction with Mock.ExpectUnmockedCall(String, Type) and complex types, where it is easier to change an argument then to mock all the methods. Here is an example of using Assign

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[Test]
public void CheckRefAndOut() 
{
    Mock mock = MockManager.Mock(typeof(TestedClass));
    TestedClass t = new TestedClass();
    // Check that first arg is "rr" and assign it with "changed"
    // Assign the second arg with 3, don't check (same as Check.IsAny())
    mock.ExpectCall("SomeMethod").Args(new Assign("changed").AndCheck("rr"), new Assign(3));
    int a ;
    string s = "rr";
    t.SomeMethod(ref s,out a);
    Assert.AreEqual(3,a);
    Assert.AreEqual("changed",s);
    MockManager.Verify();
}

<Test()> _
Public Sub CheckRefAndOut()
    Dim mock As Mock = MockManager.Mock(GetType(TestedClass))
    Dim t As TestedClass = New TestedClass
    ' Check that first arg is "rr" and assign it with "changed"
    ' Assign the second arg with 3, don't check (same as Check.IsAny())
    mock.ExpectCall("SomeMethod").Args(New Assign("changed").AndCheck("rr"), New Assign(3))
    Dim a As Integer
    Dim s As String = "rr"
    t.SomeMethod(s,a)
    Assert.AreEqual(3,a)
    Assert.AreEqual("changed",s)
    MockManager.Verify()
End Sub

Another way to assign ref and out parameter is by using the DynamicReturnValue

Note
Typemock Isolator doesn't check that the parameter is actually passed by ref

Note
Assign will might work correctly for un-mocked expectations. See CONTINUE_WITH_METHOD

Note
Assigning arrays is currently not supported

Reference

TypeMock Namespace