JUNIT4 's entry Class-Junitcore__junitcore

Overview

Junitcore as the JUNIT4 entry class (containing the static Main method), defines a series of methods to start junit completion of reflection execution on the test class

Using the following programming methods:

public static void Main (string[] args) {
    results result = junitcore.runclasses (mytest.class);//Test class object for
    ( Failure Failure:result.getFailures ()) {//Fail print failure information
        System.out.println (failure.tostring ()) for failure to execute
    ;}

START Process

1, create a default computer (responsible for calling Runnerbuilder Create runner instance), call the following code

    public static result Runclasses (Computer Computer, Class<?> ... classes) {return
        new Junitcore (). Run (Computer , classes);
    }

2, according to the incoming class object, constructs a request, the code is as follows

    Public result Run (Computer Computer, Class<?> ... classes) {return
        run (request.classes (Computer, classes)) c2/>}

Create different Runnerbuilder according to different annotations, such as @test words is Junit4builder

The annotations on classes and methods are scanned and validated when the runner is created to construct the correct test logic

    public static Request classes (Computer Computer, Class<?> ... classes) {
        try {
            Alldefaultpossibilitiesbuilder builder = new Alldefaultpossibilitiesbuilder ();
            Runner suite = Computer.getsuite (builder, classes);
            Return runner (suite);
        catch (Initializationerror e) {return
            runner (new Errorreportingrunner (E, classes));
        }
    

3, according to reqeust get runner and start

    Public result run (Request request) {return
        run (Request.getrunner ());
    }

    Public result Run (Runner Runner) {result result
        = new result ();
        Runlistener listener = Result.createlistener ();
        Notifier.addfirstlistener (listener);
        try {
            notifier.firetestrunstarted (runner.getdescription ());
            Runner.run (notifier);
            Notifier.firetestrunfinished (result);
        } finally {
            RemoveListener (listener);
        }
        return result;
    }

sequence Diagram