Junit基本注解学习（1）认识Junit基本注解@Before、@After、@Test、@BeforeClass、@AfterClass

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
 
public class BasicAnnotationTest {
    // Run once, e.g. Database connection, connection pool
    @BeforeClass
    public static void runOnceBeforeClass() {
        System.out.println("@BeforeClass - runOnceBeforeClass");
    }
 
    // Run once, e.g close connection, cleanup
    @AfterClass
    public static void runOnceAfterClass() {
        System.out.println("@AfterClass - runOnceAfterClass");
    }
 
    // Should rename to @BeforeTestMethod
    // e.g. Creating an similar object and share for all @Test
    @Before
    public void runBeforeTestMethod() {
        System.out.println("@Before - runBeforeTestMethod");
    }
 
    // Should rename to @AfterTestMethod
    @After
    public void runAfterTestMethod() {
        System.out.println("@After - runAfterTestMethod");
    }
 
    @Test
    public void test_method_1() {
        System.out.println("@Test - test_method_1");
    }
 
    @Test
    public void test_method_2() {
        System.out.println("@Test - test_method_2");
    }
}

@BeforeClass - runOnceBeforeClass
@Before - runBeforeTestMethod
@Test - test_method_1
@After - runAfterTestMethod
@Before - runBeforeTestMethod
@Test - test_method_2
@After - runAfterTestMethod
@AfterClass - runOnceAfterClass