Chapter 4 Unit Testing
Focus IntelliTest Code Exploration
Sometimes, IntelliTest needs a bit of help focusing code exploration. This can happen if you have an Interface as a parameter to a method and more than one class implements that Interface. Consider the code in Listing 4-14.
Listing 4-14. Focusing Code Exploration
public class ShipFreight
{
public void CalculateFreightCosts(IShippable box)
{
}
}
class Crate : IShippable
{
public bool CustomsCleared { get; }
}
class Package : IShippable
{
public bool CustomsCleared { get; }
}
public interface IShippable
{
bool CustomsCleared { get; }
}
If you ran IntelliTest on the CalculateFreightCosts method, then you will receive warnings as can be seen in Figure 4-20.
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Chapter 4 Unit Testing
Figure 4-20. Focus code exploration
You can tell IntelliTest which class to use to test the interface. Assume that I want to use the Package class to test the Interface. Now, just select the second warning and click the Fix button on the menu as seen in Figure 4-21.
Figure 4-21. Tell IntelliTest which class to use
IntelliTest now updates the PexAssemblyInfo.cs file by adding [assembly: PexUseType(typeof(Package))] to the end of the file to tell IntelliTest which class to use. Running IntelliTest again results in no more warnings being displayed.
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