五、testNG异常处理
当程序出现异常或者测试中有异常测试案例可以使他抛出异常
例如:0不可以当做除数,如果将除数设置为0会抛出异常
在testNG上加上 expectedExceptions = ArithmeticException.class
运行测试案例测试通过
package com.lc.testngYiChang; import org.testng.annotations.Test; public class testNG04 { @Test(expectedExceptions = ArithmeticException.class) public void testNG04_01() { int a = 0 ; int b = 1 ; System.out.println("我是testNG04类的testNG04——01方法,我在异常之前打印。"); System.out.println("我是b/a "+b/a); System.out.println("我是testNG04类的testNG04——01方法,我在异常之后打印。"); } }
如果程序正常,在测方法上加上 expectedExceptions = ArithmeticException.class ,会报出程序异常
package com.lc.testngYiChang; import org.testng.annotations.Test; public class testNG04 { @Test(expectedExceptions = ArithmeticException.class) public void testNG04_01() { int a = 0 ; int b = 1 ; System.out.println("我是testNG04类的testNG04——01方法,我在异常之前打印。"); System.out.println("我是b/a "+b/b); System.out.println("我是testNG04类的testNG04——01方法,我在异常之后打印。"); } }
[TestNG] Running: C:\Users\lc\AppData\Local\Temp\testng-eclipse-466935271\testng-customsuite.xml 我是testNG04类的testNG04——01方法,我在异常之前打印。 我是b/a 1 我是testNG04类的testNG04——01方法,我在异常之后打印。 FAILED: testNG04_01 org.testng.TestException: Method testNG04.testNG04_01()[pri:0, instance:com.lc.testngYiChang.testNG04@256216b3] should have thrown an exception of type class java.lang.ArithmeticException at org.testng.internal.ExpectedExceptionsHolder.noException(ExpectedExceptionsHolder.java:89) at org.testng.internal.Invoker.handleInvocationResults(Invoker.java:1376) at org.testng.internal.Invoker.invokeMethod(Invoker.java:677) at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:816) at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1124) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108) at org.testng.TestRunner.privateRun(TestRunner.java:774) at org.testng.TestRunner.run(TestRunner.java:624) at org.testng.SuiteRunner.runTest(SuiteRunner.java:359) at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:354) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:312) at org.testng.SuiteRunner.run(SuiteRunner.java:261) at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) at org.testng.TestNG.runSuitesSequentially(TestNG.java:1191) at org.testng.TestNG.runSuitesLocally(TestNG.java:1116) at org.testng.TestNG.run(TestNG.java:1024) at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:112) at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:205) at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:176) =============================================== Default test Tests run: 1, Failures: 1, Skips: 0 =============================================== =============================================== Default suite Total tests run: 1, Failures: 1, Skips: 0 =============================================== [TestNG] Time taken by org.testng.reporters.EmailableReporter2@61064425: 11 ms [TestNG] Time taken by org.testng.reporters.jq.Main@16f65612: 59 ms [TestNG] Time taken by org.testng.reporters.JUnitReportReporter@6bc168e5: 5 ms [TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 5 ms [TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@77556fd: 27 ms [TestNG] Time taken by org.testng.reporters.XMLReporter@7a7b0070: 3 ms
另外如果程序出现异常 会在项目下test-output/testng-failed.xml 汇整错误信息,方便观察错误类、方法,方便回购测试