testcase for JUnitTestRunner.

Submitted by:	Stephane Bailliez <sbailliez@imediation.com>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269317 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/IntrospectionHelper.java

@@ -555,11 +555,11 @@ public class IntrospectionHelper implements BuildListener {
 
     public void buildStarted(BuildEvent event) {}
     public void buildFinished(BuildEvent event) {
-	attributeTypes.clear();
-	attributeSetters.clear();
-	nestedTypes.clear();
-	nestedCreators.clear();
-	addText = null;
+        attributeTypes.clear();
+        attributeSetters.clear();
+        nestedTypes.clear();
+        nestedCreators.clear();
+        addText = null;
         helpers.clear();
     }
 

src/testcases/org/apache/tools/ant/taskdefs/optional/junit/JUnitTestRunnerTest.java

@@ -0,0 +1,190 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2000 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.junit;
+
+import java.io.*;
+import junit.framework.*;
+import org.apache.tools.ant.BuildException;
+
+/**
+ * Small testcase for the runner, tests are very very very basics.
+ * They must be enhanced with time.
+ *
+ * @author <a href="mailto:sbailliez@imediation.com">Stephane Bailliez</a>
+ */
+public class JUnitTestRunnerTest extends TestCase {
+
+    // mandatory constructor
+    public JUnitTestRunnerTest(String name){
+        super(name);
+    }
+
+    // check that having no suite generates no errors
+    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
+    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.
+    public void testInvalidSuite(){
+        TestRunner runner = createRunner(InvalidSuiteTestCase.class);
+        runner.run();
+        String error = runner.getFormatter().getError();
+        assertEquals(error, JUnitTestRunner.ERRORS, runner.getRetCode());
+        assert(error, error.indexOf("thrown on purpose") != -1);
+    }
+
+    // check that something which is not a testcase generates no errors
+    // at first even though this is incorrect.
+    public void testNoTestCase(){
+        TestRunner runner = createRunner(NoTestCase.class);
+        runner.run();
+        assertEquals(runner.getFormatter().getError(), JUnitTestRunner.FAILURES, runner.getRetCode());
+    }
+
+    // check that an exception in the constructor is noticed
+    public void testInvalidTestCase(){
+        TestRunner runner = createRunner(InvalidTestCase.class);
+        runner.run();
+        String error = runner.getFormatter().getError();
+        assertEquals(error, JUnitTestRunner.FAILURES, runner.getRetCode());
+        //@fixme as of now does not report the original stacktrace.
+        //assert(error, error.indexOf("thrown on purpose") != -1);
+    }
+    
+    protected TestRunner createRunner(Class clazz){
+        return new TestRunner(new JUnitTest(clazz.getName()), true, true);
+    }
+
+    // the test runner that wrap the dummy formatter that interests us
+    private final static class TestRunner extends JUnitTestRunner {
+        private ResultFormatter formatter = new ResultFormatter();
+        TestRunner(JUnitTest test, boolean x, boolean y){
+            super(test, x, y,  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 final static class ResultFormatter implements JUnitResultFormatter {
+        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(java.io.OutputStream out){}
+        public void startTest(Test t) {}
+        public void endTest(Test test) {}
+        public void addFailure(Test test, Throwable t) { }
+        public void addFailure(Test test, AssertionFailedError t) { }
+        public void addError(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 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 Test suite(){
+            return new TestSuite(SuiteTestCase.class);
+        }
+    }
+
+    public static class InvalidSuiteTestCase extends NoSuiteTestCase {
+        public InvalidSuiteTestCase(String name){ super(name); }
+        public static Test suite(){
+            throw new NullPointerException("thrown on purpose");
+        }
+    }
+    public static void main(String[] args){
+        junit.textui.TestRunner.run(JUnitTestRunnerTest.class);
+    }
+}
+