TM: Mock private/readonly variables

Hi Sony,

You can use Isolator ObjectState API (You'll need to reference Typemock.dll)
ObjectState has two static methods:
SetField(object obj, string fieldName, object value)
And
GetField(object obj, string fieldName)

Usage example:

public class A
{
    private int _x;
    public int GetX
    {
        get { return _x; }
    }
}
[Test]
public void TestPrivate()
{
    A a = new A();
    ObjectState.SetField(a, "_x", 5);
    Assert.AreEqual(5, a.GetX);
}

Please let me know if it helps.

Hi Ohad,

Thanks for your reply. As per our understanding 'ObjectState.SetField' is used for setting value of a private variable.
Our requirement is to initialize readonly private variable. We are ignoring the constructor call but want to initialize readonly variables which are being used in the method we want to test. Kindly suggest some way to achieve the above. Thanks

Hi Sony,

This will work also for readonly fields :)

public class A
{
    private readonly int _x = 1;
    public int GetX
    {
        get { return _x; }
    }
}

[Test]
public void Method_Scenario_() 
{
    A a = new A();
    ObjectState.SetField(a, "_x", 5);
    Assert.AreEqual(5, a.GetX);
}

Hi Ohad,

Thanks for your reply. As per our understanding 'ObjectState.SetField' is used for setting value of a private variable.
Our requirement is to initialize readonly private variable. We are ignoring the constructor call but want to initialize readonly variables which are being used in the method we want to test. Kindly suggest some way to achieve the above. Thanks

Hi Sony,

Please notice that in the example code in my previous post the field is readonly. :)
ObjectState.SetField will work in that case.