How to use setPrinter method of junit.textui.TestRunner class

Best junit code snippet using junit.textui.TestRunner.setPrinter

Source:ForwardCompatibilityPrintingTest.java

...41			public void printErrors(TestResult result) {42				getWriter().println("Errors here");43			}44		};45		runner.setPrinter(printer);46		TestSuite suite= new TestSuite();47		suite.addTest(new TestCase() {48			@Override49			public void runTest() throws Exception {50				throw new Exception();51			}52		});53		runner.doRun(suite);54		assertEquals(expected, output.toString());55	}5657	public static class ATest {58		@Test public void error() {59			Assert.fail();60		}61	}62	63	public void testErrorAdapted() {64		ByteArrayOutputStream output= new ByteArrayOutputStream();65		TestRunner runner= new TestRunner(new TestResultPrinter(66				new PrintStream(output)));6768		String expected= expected(new String[] { ".E", "Time: 0",69				"Errors here", "", "FAILURES!!!",70				"Tests run: 1,  Failures: 0,  Errors: 1", "" });71		ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {72			@Override73			public void printErrors(TestResult result) {74				getWriter().println("Errors here");75			}76		};77		runner.setPrinter(printer);78		runner.doRun(new JUnit4TestAdapter(ATest.class));79		assertEquals(expected, output.toString());80	}8182	private String expected(String[] lines) {83		OutputStream expected= new ByteArrayOutputStream();84		PrintStream expectedWriter= new PrintStream(expected);85		for (int i= 0; i < lines.length; i++)86			expectedWriter.println(lines[i]);87		return expected.toString();88	}89}
...

Source:TestRunner.java

...18  public static void main(java.lang.String[]);19  public junit.framework.TestResult start(java.lang.String[]) throws java.lang.Exception;20  protected junit.framework.TestResult runSingleMethod(java.lang.String, java.lang.String, boolean) throws java.lang.Exception;21  protected void runFailed(java.lang.String);22  public void setPrinter(junit.textui.ResultPrinter);23}...

Source:TextRunnerSingleMethodTest.java

...18        }19    }20    public void testSingle() throws Exception {21        TestRunner t = new TestRunner();22        t.setPrinter(new ResultPrinter(new PrintStream(new ByteArrayOutputStream())));23        String[] args = {24                "-m", "junit.tests.runner.TextRunnerSingleMethodTest$InvocationTest.testWasInvoked"25        };26        fgWasInvoked = false;27        t.start(args);28        assertTrue(fgWasInvoked);29    }30}...

setPrinter

Using AI Code Generation

1package com.javatpoint;2import org.junit.runner.JUnitCore;3import org.junit.runner.Result;4import org.junit.runner.notification.Failure;5import org.junit.runner.notification.RunListener;6public class TestRunner extends RunListener {7   public static void main(String[] args) {8      JUnitCore core = new JUnitCore();9      core.addListener(new TestRunner());10      Result result = core.run(TestJunit.class);11      for (Failure failure : result.getFailures()) {12         System.out.println(failure.toString());13      }14      System.out.println(result.wasSuccessful());15   }16   public void testRunStarted(org.junit.runner.Description description)17      throws Exception {18      System.out.println("Number of test cases to execute: "19         + description.testCount());20   }21   public void testRunFinished(Result result) throws Exception {22      System.out.println("Number of test cases executed: "23         + result.getRunCount());24   }25   public void testStarted(org.junit.runner.Description description)26      throws Exception {27      System.out.println("Started executing test case: "28         + description.getMethodName());29   }30   public void testFinished(org.junit.runner.Description description)31      throws Exception {32      System.out.println("Finished executing test case: "33         + description.getMethodName());34   }35}

setPrinter

Using AI Code Generation

1import junit.textui.TestRunner;2import junit.framework.Test;3import junit.framework.TestCase;4import junit.framework.TestSuite;5public class TestRunnerTest extends TestCase {6   public TestRunnerTest(String name) {7      super(name);8   }9   public static void main(String args[]) {10      TestRunner.run(suite());11   }12   public static Test suite() {13      return new TestSuite(TestRunnerTest.class);14   }15   public void testAdd() {16      int result = 2 + 3;17      assertTrue(result == 5);18   }19   public void testSubtract() {20      int result = 5 - 3;21      assertTrue(result == 2);22   }23}24OK (1 test)25OK (2 tests)26        at junit.framework.Assert.fail(Assert.java:47)27        at junit.framework.Assert.assertTrue(Assert.java:20)28        at TestRunnerTest.testAdd(TestRunnerTest.java:19)29        at java.lang.reflect.Method.invoke(Native Method)30        at junit.framework.TestCase.runTest(TestCase.java:176)31        at junit.framework.TestCase.runBare(TestCase.java:141)32        at junit.framework.TestResult$1.protect(TestResult.java:122)33        at junit.framework.TestResult.runProtected(TestResult.java:142)34        at junit.framework.TestResult.run(TestResult.java:125)35        at junit.framework.TestCase.run(TestCase.java:129)36        at junit.framework.TestSuite.runTest(TestSuite.java:252)37        at junit.framework.TestSuite.run(TestSuite.java:247)38        at junit.textui.TestRunner.doRun(TestRunner.java:92)39        at junit.textui.TestRunner.run(TestRunner.java:70)40        at junit.textui.TestRunner.run(TestRunner.java:78)41        at TestRunnerTest.main(TestRunnerTest.java:9)

setPrinter

Using AI Code Generation

1package com.test;2import junit.framework.Test;3import junit.framework.TestSuite;4import junit.textui.TestRunner;5public class TestRunnerClass {6    public static void main(String[] args) {7        TestRunner runner = new TestRunner();8        runner.setPrinter(new MyPrinter());9        TestSuite suite = new TestSuite();10        suite.addTestSuite(TestClass.class);11        runner.doRun(suite);12    }13}14package com.test;15import java.io.PrintStream;16import junit.textui.ResultPrinter;17public class MyPrinter extends ResultPrinter {18    public MyPrinter(PrintStream writer) {19        super(writer);20    }21    protected void printHeader(long runTime) {22        getWriter().print("Custom Header");23        super.printHeader(runTime);24    }25    protected void printErrors(TestResult result) {26        getWriter().print("Custom Error");27        super.printErrors(result);28    }29    protected void printFailures(TestResult result) {30        getWriter().print("Custom Failure");31        super.printFailures(result);32    }33    protected void printFooter(TestResult result) {34        getWriter().print("Custom Footer");35        super.printFooter(result);36    }37}38package com.test;39import junit.framework.TestCase;40public class TestClass extends TestCase {41    public void test() {42        assertTrue(true);43    }44}45OK (1 test)

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