열라 심풀 테스트프레임웍.

Assert.java

package com.springapp.mvc;

public class Assert {
    public static void isNotNull(Object expected,String message) {
        if(null == expected){
            throw new AssertException(message);
        }
    }

    public static void isTrue(boolean expr) {
        isTrue(expr,"is not true");
    }

    public static void isTrue(boolean expr, String message) {
        if(false == expr){
            throw new AssertException(message);
        }
    }

    public static void assertEquals(int expected, int got) {
        isTrue(expected== got,String.format("%s != %s",expected, got));
    }
}

AssertException.java

package com.springapp.mvc;

public class AssertException extends RuntimeException {

    public AssertException(String message) {
        super(message);
    }
}

Reporter.java

package com.springapp.mvc;

public class Reporter {
    public void write(Test test) {
        System.out.println(String.format("[%5s] %s",test.getStatus(),test.getDescription()));
    }
}

Test.java

package com.springapp.mvc;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import static java.lang.System.err;

public class Test {
    private final Method method;
    private final Class<?> testClass;
    private TestStatus status=TestStatus.READY;

    public Test(Class<?> testClass, Method method) {
        this.testClass = testClass;
        this.method=method;
    }

    public void execute() {
        try {
            status = TestStatus.ING;
            method.invoke(testClass.newInstance());
            status = TestStatus.GREEN;

        } catch (IllegalAccessException e) {
            //e.printStackTrace();
            status = TestStatus.RED;
        } catch (InvocationTargetException e) {
            //e.printStackTrace();
            status = TestStatus.RED;
        } catch (InstantiationException e) {
            //e.printStackTrace();
            status = TestStatus.RED;
        }
    }

    public String getDescription(){
        Description description = method.getAnnotation(Description.class);
        return description.value();
    }

    public TestStatus getStatus(){
        return status;
    }

}

TestExtractor.java

package com.springapp.mvc;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

public class TestExtractor {

    public List<Test> extract(Class<?> testClass) {
        List<Test> tests = new ArrayList<Test>();

        for (Method each : testClass.getMethods()) {
            if (isTestMehtod(each)) {
                tests.add(new Test(testClass,each));
            }
        }
        return  tests;
    }

    private  boolean isTestMehtod(Method method) {
        final String TEST_PREFIX = "test";
        final String TEST_RETURN_TYPE = "void";

        return method.getName().startsWith(TEST_PREFIX)
                || method.getReturnType().equals(TEST_RETURN_TYPE);
    }
}

TestMain.java

package com.springapp.mvc;

public class TestMain {

    public static class FooTest {

        @Description("설명이거들랑 0 ")
        public void testForNonNullArgument(){
            Assert.isNotNull(null,"null값은 허용되지 않습니다.");
        }

        @Description("설명이거들랑 1 ")
        public void testDivisorNotZero(){
            Assert.isTrue(0!= 0,"0으로 나눌 수 없습니다.");
        }

        @Description("설명이거들랑 2 ")
        public void testArrayElement(){
            Assert.isTrue( 0 <= 3 && new String[]{"Dustin", "java"}.length > 3 ,"지정된 Array 요소 위치가 벗어났습니다.");
        }

        @Description("설명이거들랑 3 ")
        public void testArrayPosition(){
            Assert.isTrue( 0 <= 3 && new String[]{"Dustin", "java"}.length > 3 ,"지정된 Array 요소 위치가 벗어났습니다.");
        }

        @Description("설명이거들랑 4 ")
        public void testState(){
            Assert.isTrue(false, "반드시 true ");
        }


    }

    public static void main(String[] args) {

        TestRunner testRunner =new TestRunner(FooTest.class);
        testRunner.run();

    }
}

TestRunner.java

package com.springapp.mvc;

import java.util.List;

public class TestRunner {
    private final List<Test> tests;

    private Reporter reporter =new Reporter();

    public TestRunner(Class<?> testClass) {
        this.tests = new TestExtractor().extract(testClass);
    }

    public void run() {
        try{
            for (Test test : tests) {
                test.execute();
                reporter.write(test);
            }
        }catch(Exception e){
            e.printStackTrace();
        }
    }


}

TestStatus.java

package com.springapp.mvc;

public enum TestStatus {
   READY,ING,GREEN,RED
}