问题
I would like to mock the System.Diagnostics.Process.Start call, so i added a Fakes Assembly for the System Assembly.
The problem is that Start is a static method on System.Diagnostics.Process so i'm not getting a shim to be able to hock on a delegate for the Start method.
What is the correct way of doing this?
回答1:
So first of all you need to generate the Shim for the Process class.
After you create the Fakes for System you should see a folder called 'Fakes'. Inside that folder you need to edit the System.fakes file so that it will generate the Shims for System.Diagnostics.Process:
<Fakes xmlns="http://schemas.microsoft.com/fakes/2011/" Diagnostic="true">
<Assembly Name="System" Version="4.0.0.0"/>
<ShimGeneration>
<Add FullName="System.Diagnostics.Process"/>
</ShimGeneration>
</Fakes>
After compiling you will be able to see in Object Explorer that Fakes Shims for Process have been genereated.
To use the Shim in a test you need to configure the Fake Process.Start delegate. A test might end up looking something like this:
using (ShimsContext.Create())
{
System.Diagnostics.Fakes.ShimProcess.StartString = s =>
{
Console.WriteLine(s);
return new StubProcess();
};
// A call to your method under test that exectues Process.Start rather than calling it directly
var process = Process.Start("SomeString");
Assert.IsTrue(process is StubProcess);
}
Obviously you might want to include something more relevant to your scenario test in your delegate and assertions.
See MSDN link
回答2:
You can use anonymous delegate
()=> Process.Start("your.exe");
For example
class Program
{
static void Main(string[] args)
{
RunnerClass runner = new RunnerClass();
runner.runProgram += (exeFile) => Process.Start("your.exe");
string runApp = "run.exe";
runner.runProgram(runApp);
}
}
public class RunnerClass
{
public Action<string> runProgram;
}
来源:https://stackoverflow.com/questions/18610684/how-to-use-microsoft-fakes-assemblies-on-process-start