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1、 Copyright 2002 Chinaxp. All rights reserved测试驱动的设计和开发 ( Test Driven Design and Development ) 基础篇Charles Huang import junit.framework.TestSuite; import junit.framework.Test;public class AccountDAOmySqlTest extends TestCase public AccountDAOmySqlTest(String name) super(name); 1111126 Copyright 2002 C
2、hinaxp. All rights reservedJunit( A sample)2. Override setUp() and tearDown() 如果需要，可以在setUp()中初始化需要的全局变量，资源等（比如 Database Connection, File I/O或Mock Objects等） 相应的，可以在tearDown()中释放资源（Database Connection,File I/O和Mock Objects等） public class AccountDAOmySqlTest extends TestCase private MysqlFixture mysql
3、FixtureIns = new MysqlFixture(); public void setUp() throws Exception mysqlFixtureIns.setUp(); public void tearDown() throws Exception mysqlFixtureIns.tearDown(); 1111127 Copyright 2002 Chinaxp. All rights reservedJunit( A sample)3.为被测试的Method写Test Case public void testAddAccountNormal() AccountDAOm
4、ySql dao = new AccountDAOmySql(); Account account = new Account(USER_NAME,“charles“,“charles_“); trydao.addAccount( account );Account account_new = dao.findByUserName( account.getUserName() );assertEquals(“Expecting charles“,account.getUserName(),account_new.getUserName() );assertEquals(“Expecting c
5、harles“,account.getPassword(),account_new.getPassword() );assertEquals(“Expecting “,account.getEmail(),account_new.getEmail() );dao.removeAccount( account.getUserName() );catch( final Exception e )e.printStackTrace();fail(“Unexpected exception:“ + e.toString(); 1111128 Copyright 2002 Chinaxp. All ri
6、ghts reservedJunit( A sample)public void testAddAccountAlreadyExist() AccountDAOmySql dao = null; Account account = null; try / Add an Account dao.addAccount( account ); fail(“AccountAlreadyExistException expected“); catch( final SQLException e )e.printStackTrace(); fail(“Unexpected exception:“ + e.
7、toString(); catch( final AccountNotFoundException notFound ) notFound.printStackTrace(); fail(“Unexpected exception: “ + notFound.toString() );catch( final AccountAlreadyExistException ex ) / Pass try dao.removeAccount( account.getUserName() ); catch( final SQLException sql ) sql.printStackTrace();
8、fail(“Unexpected exception “); 1111129 Copyright 2002 Chinaxp. All rights reservedJunit( A Sample) 运行这个Unit Test。 Junit提供两种运行界面：Swing(junit.swingui.TestRunner)C:sandboxforumjava -classpath ./classes;./lib/junit.jar;./lib/mysql_jdbc.jar;./lib/Tidy.jar;./lib/struts.jar junit.swingui.TestRunner org.red
9、soft.forum.dao.mysql.AccountDAOmySqlTest1111130 Copyright 2002 Chinaxp. All rights reservedJunit( A Sample)Text界面( junit.textui.TestRunner )1111131 Copyright 2002 Chinaxp. All rights reservedJunit Test SuiteTest Suite用来运行所有的Unit Tests Test Suite的数型结构： org.redsoft.forum.AllTest | |-org.redsoft.forum.
10、dao.AllTest | |-org.redsoft.forum.dao.mysql.AllTest | |-org.redsoft.forum.util.AllTest每个Package Level都由一个AllTest Test Suite 在每个Test Suite中， 加入在本package level中的所有单元测试例子( Unit Test Cases ) 加入子Package level中的所有AllTest Suite1111132 Copyright 2002 Chinaxp. All rights reservedJunit Test Suitepackage org.r
11、edsoft.forum.dao; public class AllTests public static void main(String args) junit.textui.TestRunner.run(suite(); public static Test suite() TestSuite suite = new TestSuite();/ 加入子package中的AllTest suite suite.addTest(org.redsoft.forum.dao.mysql.AllTests.suite();/ 加入本package level中的Unit Test case sui
12、te.addTestSuite(MysqlDataSourceTest.class);return suite; /EOC1111133 Copyright 2002 Chinaxp. All rights reservedJFC Unit一个Junit的Extension,用来测试Swing-based的Application。 一个最简单的Sample:测试一个Login Screen1111134 Copyright 2002 Chinaxp. All rights reservedJFC Unit代码片断：设置测试环境private LoginScreen loginScreen =
13、null; private TestHelper helper = null; public LoginScreenTest( String name ) super( name ); protected void setUp( ) throws Exception super.setUp( ); helper = new JFCTestHelper( );loginScreen = new LoginScreen( “LoginScreenTest: “ + getName( ) ); loginScreen.setVisible( true ); protected void tearDo
14、wn( ) throws Exception loginScreen = null; helper.cleanUp( this ); super.tearDown( ); 代码片断：测试图形界面 JDialog dialog; JButton exitButton = ( JButton ) helper.findNamedComponent( “ExitButton“, loginScreen, 0 ); assertNotNull( “Could not find the Exit button“, exitButton ); JButton enterButton = ( JButton
15、 ) helper.findNamedComponent( “EnterButton“, loginScreen, 0 ); assertNotNull( “Could not find the Enter button“, enterButton ); JTextField userNameField = ( JTextField ) helper.findNamedComponent( “LoginNameTextField“,loginScreen, 0 ); assertNotNull( “Could not find the userNameField“, userNameField
16、 ); assertEquals( “Username field is empty“, “, userNameField.getText( ) ); JTextField passwordField = ( JTextField ) helper.findNamedComponent( “PasswordTextField“, loginScreen, 0 ); assertNotNull( “Could not find the passwordField“, passwordField ); assertEquals( “Password field is empty“, “, passwordField.getText( )
