| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| package org.apache.tools.ant.taskdefs.optional.junit; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.io.OutputStream; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| |
| import junit.framework.AssertionFailedError; |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.junit.Test; |
| |
| /** |
| * Small testcase for the runner, tests are very very very basics. |
| * They must be enhanced with time. |
| * |
| */ |
| public class JUnitTestRunnerTest { |
| |
| // check that a valid method name generates no errors |
| @Test |
| public void testValidMethod() { |
| TestRunner runner = createRunnerForTestMethod(ValidMethodTestCase.class, "testA"); |
| runner.run(); |
| assertEquals(runner.getFormatter().getError(), JUnitTestRunner.SUCCESS, runner.getRetCode()); |
| } |
| |
| // check that having an invalid method name generates an error |
| @Test |
| public void testInvalidMethod() { |
| TestRunner runner = createRunnerForTestMethod(InvalidMethodTestCase.class, "testInvalid"); |
| runner.run(); |
| String error = runner.getFormatter().getError(); |
| // might be FAILURES or ERRORS depending on JUnit version? |
| assertTrue(error, runner.getRetCode() != JUnitTestRunner.SUCCESS); |
| } |
| |
| // check that having no suite generates no errors |
| @Test |
| public void testNoSuite() { |
| TestRunner runner = createRunner(NoSuiteTestCase.class); |
| runner.run(); |
| assertEquals(runner.getFormatter().getError(), JUnitTestRunner.SUCCESS, runner.getRetCode()); |
| } |
| |
| // check that a suite generates no errors |
| @Test |
| public void testSuite() { |
| TestRunner runner = createRunner(SuiteTestCase.class); |
| runner.run(); |
| assertEquals(runner.getFormatter().getError(), JUnitTestRunner.SUCCESS, runner.getRetCode()); |
| } |
| |
| // check that an invalid suite generates an error. |
| @Test |
| public void testInvalidSuite() { |
| TestRunner runner = createRunner(InvalidSuiteTestCase.class); |
| runner.run(); |
| String error = runner.getFormatter().getError(); |
| assertEquals(error, JUnitTestRunner.ERRORS, runner.getRetCode()); |
| assertTrue(error, error.contains("thrown on purpose")); |
| } |
| |
| // check that something which is not a testcase generates no errors |
| // at first even though this is incorrect. |
| @Test |
| public void testNoTestCase() { |
| TestRunner runner = createRunner(NoTestCase.class); |
| runner.run(); |
| // On junit3 this is a FAILURE, on junit4 this is an ERROR |
| int ret = runner.getRetCode(); |
| |
| if (ret != JUnitTestRunner.FAILURES && ret != JUnitTestRunner.ERRORS) { |
| fail("Unexpected result " + ret + " from junit runner"); |
| } |
| // JUnit3 test |
| //assertEquals(runner.getFormatter().getError(), JUnitTestRunner.FAILURES, runner.getRetCode()); |
| } |
| |
| // check that something which is not a testcase doesn't generate an error |
| // when skipping non-test classes |
| @Test |
| public void testSkipNonTestsNoTestCase() { |
| TestRunner runner = createRunner(NoTestCase.class, true); |
| runner.run(); |
| assertEquals(runner.getFormatter().getError(), JUnitTestRunner.SUCCESS, runner.getRetCode()); |
| } |
| |
| // check that something which is not a testcase with a failing static init doesn't generate an error |
| // when skipping non-test classes |
| @Test |
| public void testSkipNonTestsNoTestCaseFailingStaticInit() { |
| TestRunner runner = createRunner(NoTestCaseStaticInitializerError.class, true); |
| runner.run(); |
| assertEquals(runner.getFormatter().getError(), JUnitTestRunner.SUCCESS, runner.getRetCode()); |
| } |
| |
| @Test |
| public void testStaticInitializerErrorTestCase() { |
| TestRunner runner = createRunner(StaticInitializerErrorTestCase.class); |
| runner.run(); |
| // On junit3 this is a FAILURE, on junit4 this is an ERROR |
| int ret = runner.getRetCode(); |
| if (ret != JUnitTestRunner.FAILURES && ret != JUnitTestRunner.ERRORS) { |
| fail("Unexpected result " + ret + " from junit runner"); |
| } |
| } |
| |
| // check that an exception in the constructor is noticed |
| @Test |
| public void testInvalidTestCase() { |
| TestRunner runner = createRunner(InvalidTestCase.class); |
| runner.run(); |
| // On junit3 this is a FAILURE, on junit4 this is an ERROR |
| int ret = runner.getRetCode(); |
| if (ret != JUnitTestRunner.FAILURES && ret != JUnitTestRunner.ERRORS) { |
| fail("Unexpected result " + ret + " from junit runner"); |
| } |
| // JUNIT3 test |
| //assertEquals(error, JUnitTestRunner.FAILURES, runner.getRetCode()); |
| //@fixme as of now does not report the original stacktrace. |
| //assertTrue(error, error.indexOf("thrown on purpose") != -1); |
| } |
| |
| // check that JUnit 4 synthetic AssertionFailedError gets message and cause from AssertionError |
| @Test |
| public void testJUnit4AssertionError() { |
| TestRunner runner = createRunnerForTestMethod(AssertionErrorTest.class, "throwsAssertionError"); |
| runner.run(); |
| |
| AssertionFailedError failure = runner.getFormatter().getFailure(); |
| assertEquals("failure message", failure.getMessage()); |
| |
| Throwable cause = failure.getCause(); |
| assertEquals(RuntimeException.class, cause.getClass()); |
| assertEquals("cause message", cause.getMessage()); |
| } |
| |
| protected TestRunner createRunner(Class<?> clazz) { |
| return new TestRunner(new JUnitTest(clazz.getName()), null, |
| true, true, true); |
| } |
| |
| protected TestRunner createRunner(Class<?> clazz, boolean skipNonTests) { |
| JUnitTest test = new JUnitTest(clazz.getName()); |
| test.setSkipNonTests(skipNonTests); |
| return new TestRunner(test, null, true, true, true); |
| } |
| |
| protected TestRunner createRunnerForTestMethod(Class<?> clazz, String method) { |
| return new TestRunner(new JUnitTest(clazz.getName()), new String[] {method}, |
| true, true, true); |
| } |
| |
| // the test runner that wrap the dummy formatter that interests us |
| private static final class TestRunner extends JUnitTestRunner { |
| private ResultFormatter formatter = new ResultFormatter(); |
| TestRunner(JUnitTest test, String[] methods, boolean haltonerror, |
| boolean filtertrace, boolean haltonfailure) { |
| super(test, methods, haltonerror, filtertrace, haltonfailure, |
| false, false, TestRunner.class.getClassLoader()); |
| // use the classloader that loaded this class otherwise |
| // it will not be able to run inner classes if this test |
| // is ran in non-forked mode. |
| addFormatter(formatter); |
| } |
| ResultFormatter getFormatter() { |
| return formatter; |
| } |
| } |
| |
| // dummy formatter just to catch the error |
| private static final class ResultFormatter implements JUnitResultFormatter { |
| private AssertionFailedError failure; |
| private Throwable error; |
| public void setSystemOutput(String output) { |
| } |
| public void setSystemError(String output) { |
| } |
| public void startTestSuite(JUnitTest suite) throws BuildException { |
| } |
| public void endTestSuite(JUnitTest suite) throws BuildException { |
| } |
| public void setOutput(OutputStream out) { |
| } |
| public void startTest(junit.framework.Test t) { |
| } |
| public void endTest(junit.framework.Test test) { |
| } |
| public void addFailure(junit.framework.Test test, AssertionFailedError t) { |
| failure = t; |
| } |
| AssertionFailedError getFailure() { |
| return failure; |
| } |
| public void addError(junit.framework.Test test, Throwable t) { |
| error = t; |
| } |
| String getError() { |
| if (error == null) { |
| return ""; |
| } |
| StringWriter sw = new StringWriter(); |
| error.printStackTrace(new PrintWriter(sw)); |
| return sw.toString(); |
| } |
| } |
| |
| public static class NoTestCase { |
| } |
| |
| public static class NoTestCaseStaticInitializerError { |
| static { |
| error(); |
| } |
| private static void error() { |
| throw new NullPointerException("thrown on purpose"); |
| } |
| } |
| |
| public static class InvalidMethodTestCase extends TestCase { |
| public InvalidMethodTestCase(String name) { |
| super(name); |
| } |
| public void testA() { |
| throw new NullPointerException("thrown on purpose"); |
| } |
| } |
| |
| public static class ValidMethodTestCase extends TestCase { |
| public ValidMethodTestCase(String name) { |
| super(name); |
| } |
| public void testA() { |
| // expected to be executed |
| } |
| public void testB() { |
| // should not be executed |
| throw new NullPointerException("thrown on purpose"); |
| } |
| } |
| |
| public static class InvalidTestCase extends TestCase { |
| public InvalidTestCase(String name) { |
| super(name); |
| throw new NullPointerException("thrown on purpose"); |
| } |
| } |
| |
| public static class NoSuiteTestCase extends TestCase { |
| public NoSuiteTestCase(String name) { |
| super(name); |
| } |
| public void testA() { |
| } |
| } |
| |
| public static class SuiteTestCase extends NoSuiteTestCase { |
| public SuiteTestCase(String name) { |
| super(name); |
| } |
| public static junit.framework.Test suite() { |
| return new TestSuite(SuiteTestCase.class); |
| } |
| } |
| |
| public static class InvalidSuiteTestCase extends NoSuiteTestCase { |
| public InvalidSuiteTestCase(String name) { |
| super(name); |
| } |
| public static junit.framework.Test suite() { |
| throw new NullPointerException("thrown on purpose"); |
| } |
| } |
| |
| public static class StaticInitializerErrorTestCase extends TestCase { |
| static { |
| error(); |
| } |
| private static void error() { |
| throw new NullPointerException("thrown on purpose"); |
| } |
| public void testA() { |
| } |
| } |
| |
| public static class AssertionErrorTest { |
| @Test |
| public void throwsAssertionError() { |
| AssertionError assertionError = new AssertionError("failure message"); |
| assertionError.initCause(new RuntimeException("cause message")); |
| throw assertionError; |
| } |
| } |
| } |