@Test注释有许多属性，alwaysRun就是其中之一。在这篇文章中，我们将详细讨论alwaysRun属性。

alwaysRun属性的用途是什么？这个属性有什么作用？嗯，根据测试文件。

如果设置为true，则此测试方法将始终运行，即使它依赖于失败的方法。

困惑？别担心我们会帮你的。

让我们尝试运行一个依赖于另一个测试方法（dependsOnThis，也在下面显示）的测试用例（testMethod，如下所示），而不使用alwaysRun属性，看看会发生什么。这里我们将使dependsOnThis测试用例失败。

import org.testng.Assert;
import org.testng.annotations.Test;public class CodekruTest {@Testpublic void dependsOnThis() {Assert.assertTrue(false); // failing the test}@Test(dependsOnMethods = { "dependsOnThis" })public void testMethod() {System.out.println("testMethod is passed"); // this line will never be printed}}

产出-

FAILED: dependsOnThis
java.lang.AssertionError: expected [true] but found [false]at org.testng.Assert.fail(Assert.java:96)at org.testng.Assert.failNotEquals(Assert.java:776)at org.testng.Assert.assertTrue(Assert.java:44)at org.testng.Assert.assertTrue(Assert.java:54)at Test.CodekruTest.dependsOnThis(CodekruTest.java:10)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:564)at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)at org.testng.internal.Invoker.invokeMethod(Invoker.java:583)at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:719)at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:989)at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)at org.testng.TestRunner.privateRun(TestRunner.java:648)at org.testng.TestRunner.run(TestRunner.java:505)at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)at org.testng.SuiteRunner.run(SuiteRunner.java:364)at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)at org.testng.TestNG.runSuites(TestNG.java:1049)at org.testng.TestNG.run(TestNG.java:1017)at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)SKIPPED: testMethod
java.lang.Throwable: Method CodekruTest.testMethod()[pri:0, instance:Test.CodekruTest@404bbcbd] depends on not successfully finished methodsat org.testng.internal.Invoker.invokeTestMethods(Invoker.java:888)at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)at org.testng.TestRunner.privateRun(TestRunner.java:648)at org.testng.TestRunner.run(TestRunner.java:505)at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)at org.testng.SuiteRunner.run(SuiteRunner.java:364)at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)at org.testng.TestNG.runSuites(TestNG.java:1049)at org.testng.TestNG.run(TestNG.java:1017)at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)===============================================Default testTests run: 2, Failures: 1, Skips: 1
==============================================================================================
Default suite
Total tests run: 2, Failures: 1, Skips: 1
===============================================

我们在运行testMethod后得到了上面的输出，因为我们可以看到testMethod（）没有被执行，因为它的依赖方法（dependsOnThis）失败了。

现在，让我们尝试相同的代码，但我们将使用alwaysRun属性，看看会发生什么。

import org.testng.Assert;
import org.testng.annotations.Test;public class CodekruTest {@Testpublic void dependsOnThis() {Assert.assertTrue(false); // failing the test}@Test(alwaysRun = true, dependsOnMethods = { "dependsOnThis" })public void testMethod() {System.out.println("testMethod is passed"); // now, this will be printed}}

产出-

testMethod is passed
PASSED: testMethod
FAILED: dependsOnThis
java.lang.AssertionError: expected [true] but found [false]at org.testng.Assert.fail(Assert.java:96)at org.testng.Assert.failNotEquals(Assert.java:776)at org.testng.Assert.assertTrue(Assert.java:44)at org.testng.Assert.assertTrue(Assert.java:54)at Test.CodekruTest.dependsOnThis(CodekruTest.java:10)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:564)at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)at org.testng.internal.Invoker.invokeMethod(Invoker.java:583)at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:719)at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:989)at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)at org.testng.TestRunner.privateRun(TestRunner.java:648)at org.testng.TestRunner.run(TestRunner.java:505)at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)at org.testng.SuiteRunner.run(SuiteRunner.java:364)at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)at org.testng.TestNG.runSuites(TestNG.java:1049)at org.testng.TestNG.run(TestNG.java:1017)at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)===============================================Default testTests run: 2, Failures: 1, Skips: 0
==============================================================================================
Default suite
Total tests run: 2, Failures: 1, Skips: 0
===============================================

在这里，您可以看到，尽管dependsOnThis失败，testMethod测试仍然运行，与前面一样。这就是alwaysRun属性的功能。

我们有一个问题：每当我们在@Test注释中使用alwaysRun属性时，是否有必要传递dependsOnMethods或dependsOnGroups属性？

答案是肯定的，alwaysRun只有在我们传递了dependsOnMethods或dependsOnGroups属性的情况下才能工作。如果alwaysRun是在没有dependsOnMethods或dependsOnGroups属性的情况下编写的，它将被忽略因此，最好将其与dependsOnMethods或dependsOnGroups一起使用。