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How to use getWriter method of junit.textui.ResultPrinter class

Best junit code snippet using junit.textui.ResultPrinter.getWriter

Source:UIMAResultPrinter.java

...59   * @see junit.textui.ResultPrinter#printHeader(long)60   */61  @Override62  protected void printHeader(long runTime) {63    getWriter().println();64    getWriter().println();65    getWriter().println("Time: " + elapsedTimeAsString(runTime));66  }67  /**68   * @see junit.textui.ResultPrinter#printErrors(junit.framework.TestResult)69   */70  @Override71  protected void printErrors(TestResult result) {72    printDefects(result.errors(), result.errorCount(), "error");73  }74  /**75   * @see junit.textui.ResultPrinter#printFailures(junit.framework.TestResult)76   */77  @Override78  protected void printFailures(TestResult result) {79    printDefects(result.failures(), result.failureCount(), "failure");80  }81  /**82   * @see junit.textui.ResultPrinter#printDefects(java.util.Enumeration, int, java.lang.String)83   */84  @Override85  protected void printDefects(Enumeration booBoos, int count, String type) {86    if (count == 0)87      return;88    if (count == 1)89      getWriter().println("There was " + count + " " + type + ":");90    else91      getWriter().println("There were " + count + " " + type + "s:");92    for (int i = 1; booBoos.hasMoreElements(); i++) {93      printDefect((TestFailure) booBoos.nextElement(), i);94    }95  }96  /**97   * @see junit.textui.ResultPrinter#printDefect(junit.framework.TestFailure, int)98   */99  @Override100  public void printDefect(TestFailure booBoo, int count) { // only public for testing purposes101    printDefectHeader(booBoo, count);102    printDefectTrace(booBoo);103  }104  /**105   * @see junit.textui.ResultPrinter#printDefectHeader(junit.framework.TestFailure, int)106   */107  @Override108  protected void printDefectHeader(TestFailure booBoo, int count) {109    // I feel like making this a println, then adding a line giving the throwable a chance to print110    // something111    // before we get to the stack trace.112    getWriter().print(count + ") " + booBoo.failedTest());113  }114  /**115   * @see junit.textui.ResultPrinter#printDefectTrace(junit.framework.TestFailure)116   */117  @Override118  protected void printDefectTrace(TestFailure booBoo) {119    getWriter().print(BaseTestRunner.getFilteredTrace(booBoo.trace()));120  }121  /**122   * @see junit.textui.ResultPrinter#printFooter(junit.framework.TestResult)123   */124  @Override125  protected void printFooter(TestResult result) {126    if (result.wasSuccessful()) {127      getWriter().println();128      getWriter().print("OK");129      getWriter().println(130              " (" + result.runCount() + " test" + (result.runCount() == 1 ? "" : "s") + ")");131    } else {132      getWriter().println();133      getWriter().println("FAILURES!!!");134      getWriter().println("Tests run: " + result.runCount() + ",  Failures: "135              + result.failureCount() + ",  Errors: " + result.errorCount());136    }137    getWriter().println();138  }139  /**140   * Returns the formatted string of the elapsed time. Duplicated from BaseTestRunner. Fix it.141   */142  @Override143  protected String elapsedTimeAsString(long runTime) {144    return NumberFormat.getInstance().format((double) runTime / 1000);145  }146  /**147   * @see junit.textui.ResultPrinter#getWriter()148   */149  @Override150  public PrintStream getWriter() {151    return this.fWriter;152  }153  /**154   * @see junit.framework.TestListener#addError(Test, Throwable)155   */156  @Override157  public void addError(Test test, Throwable t) {158    getWriter().print("error");159    this.currentTestSuccess = false;160    if (this.abortOnFail) {161      getWriter().println();162      getWriter().println();163      getWriter().println("Stop executing testcases...");164      getWriter().println("Print Stacktrace: ");165      getWriter().println();166      StackTraceElement[] stackTrace = t.getStackTrace();167      for (int i = 0; i < stackTrace.length; i++) {168        getWriter().println(stackTrace[i].toString());169      }170      throw new RuntimeException("Abort on error");171    }172  }173  /**174   * @see junit.framework.TestListener#addFailure(Test, AssertionFailedError)175   */176  @Override177  public void addFailure(Test test, AssertionFailedError t) {178    getWriter().print("failure");179    this.currentTestSuccess = false;180    if (this.abortOnFail) {181      getWriter().println();182      getWriter().println();183      getWriter().println("Stop executing testcases...");184      getWriter().println("Print Stacktrace: ");185      getWriter().println();186      StackTraceElement[] stackTrace = t.getStackTrace();187      for (int i = 0; i < stackTrace.length; i++) {188        getWriter().println(stackTrace[i].toString());189      }190      throw new RuntimeException("Abort on failure");191    }192  }193  /**194   * @see junit.framework.TestListener#endTest(Test)195   */196  @Override197  public void endTest(Test test) {198    if (this.currentTestSuccess == false)199      this.currentTestSuccess = true;200    else201      getWriter().print("ok");202  }203  /**204   * @see junit.framework.TestListener#startTest(Test)205   */206  @Override207  public void startTest(Test test) {208    this.testCounter++;209    String name = test.toString();210    String tempCurrentTestClass = name.substring(name.indexOf('(') + 1, name.lastIndexOf(')'));211    String testName = name.substring(0, name.indexOf('('));212    if (!tempCurrentTestClass.equals(this.currentTestClass)) {213      this.currentTestClass = tempCurrentTestClass;214      getWriter().println();215      getWriter().println();216      getWriter().print(this.currentTestClass);217      getWriter().println();218      for (int i = 0; i < this.currentTestClass.length(); i++)219        getWriter().print("=");220    }221    getWriter().println();222    getWriter().print(this.testCounter + ":  " + testName + ": ");223    if (this.fColumn++ >= 40 || this.teeOutputStream) {224      getWriter().println();225      this.fColumn = 0;226    }227  }228}...

Source:ResultPrinter.java

...28/*  28 */     printFooter(result);29/*     */   }30/*     */   31/*     */   void printWaitPrompt() {32/*  32 */     getWriter().println();33/*  33 */     getWriter().println("<RETURN> to continue");34/*     */   }35/*     */ 36/*     */ 37/*     */   38/*     */   protected void printHeader(long runTime) {39/*  39 */     getWriter().println();40/*  40 */     getWriter().println("Time: " + elapsedTimeAsString(runTime));41/*     */   }42/*     */   43/*     */   protected void printErrors(TestResult result) {44/*  44 */     printDefects(result.errors(), result.errorCount(), "error");45/*     */   }46/*     */   47/*     */   protected void printFailures(TestResult result) {48/*  48 */     printDefects(result.failures(), result.failureCount(), "failure");49/*     */   }50/*     */   51/*     */   protected void printDefects(Enumeration<TestFailure> booBoos, int count, String type) {52/*  52 */     if (count == 0)53/*  53 */       return;  if (count == 1) {54/*  54 */       getWriter().println("There was " + count + " " + type + ":");55/*     */     } else {56/*  56 */       getWriter().println("There were " + count + " " + type + "s:");57/*     */     } 58/*  58 */     for (int i = 1; booBoos.hasMoreElements(); i++) {59/*  59 */       printDefect(booBoos.nextElement(), i);60/*     */     }61/*     */   }62/*     */   63/*     */   public void printDefect(TestFailure booBoo, int count) {64/*  64 */     printDefectHeader(booBoo, count);65/*  65 */     printDefectTrace(booBoo);66/*     */   }67/*     */ 68/*     */ 69/*     */   70/*     */   protected void printDefectHeader(TestFailure booBoo, int count) {71/*  71 */     getWriter().print(count + ") " + booBoo.failedTest());72/*     */   }73/*     */   74/*     */   protected void printDefectTrace(TestFailure booBoo) {75/*  75 */     getWriter().print(BaseTestRunner.getFilteredTrace(booBoo.trace()));76/*     */   }77/*     */   78/*     */   protected void printFooter(TestResult result) {79/*  79 */     if (result.wasSuccessful()) {80/*  80 */       getWriter().println();81/*  81 */       getWriter().print("OK");82/*  82 */       getWriter().println(" (" + result.runCount() + " test" + ((result.runCount() == 1) ? "" : "s") + ")");83/*     */     } else {84/*     */       85/*  85 */       getWriter().println();86/*  86 */       getWriter().println("FAILURES!!!");87/*  87 */       getWriter().println("Tests run: " + result.runCount() + ",  Failures: " + result.failureCount() + ",  Errors: " + result.errorCount());88/*     */     } 89/*     */ 90/*     */     91/*  91 */     getWriter().println();92/*     */   }93/*     */ 94/*     */ 95/*     */ 96/*     */ 97/*     */   98/*     */   protected String elapsedTimeAsString(long runTime) {99/*  99 */     return NumberFormat.getInstance().format(runTime / 1000.0D);100/*     */   }101/*     */   102/*     */   public PrintStream getWriter() {103/* 103 */     return this.fWriter;104/*     */   }105/*     */ 106/*     */ 107/*     */ 108/*     */   109/*     */   public void addError(Test test, Throwable e) {110/* 110 */     getWriter().print("E");111/*     */   }112/*     */ 113/*     */ 114/*     */ 115/*     */   116/*     */   public void addFailure(Test test, AssertionFailedError t) {117/* 117 */     getWriter().print("F");118/*     */   }119/*     */ 120/*     */ 121/*     */ 122/*     */ 123/*     */   124/*     */   public void endTest(Test test) {}125/*     */ 126/*     */ 127/*     */ 128/*     */   129/*     */   public void startTest(Test test) {130/* 130 */     getWriter().print(".");131/* 131 */     if (this.fColumn++ >= 40) {132/* 132 */       getWriter().println();133/* 133 */       this.fColumn = 0;134/*     */     } 135/*     */   }136/*     */ }137/* Location:              /home/arpit/Downloads/Picking-Tool-6.5.2.jar!/junit/textui/ResultPrinter.class138 * Java compiler version: 5 (49.0)139 * JD-Core Version:       1.1.3140 */...

Source:TextFeedbackTest.java

...70		String expected= expected(new String[]{".F", "Time: 0", "Failures here", "", "FAILURES!!!", "Tests run: 1,  Failures: 1,  Errors: 0", ""});71		ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {72			@Override73			public void printFailures(TestResult result) {74				getWriter().println("Failures here");75			}76		};77		runner.setPrinter(printer);78		TestSuite suite = new TestSuite();79		suite.addTest(new TestCase() { @Override80		public void runTest() {throw new AssertionFailedError();}});81		runner.doRun(suite);82		assertEquals(expected, output.toString());83	}84	85	public void testError() {86		String expected= expected(new String[]{".E", "Time: 0", "Errors here", "", "FAILURES!!!", "Tests run: 1,  Failures: 0,  Errors: 1", ""});87		ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {88			@Override89			public void printErrors(TestResult result) {90				getWriter().println("Errors here");91			}92		};93		runner.setPrinter(printer);94		TestSuite suite = new TestSuite();95		suite.addTest(new TestCase() { @Override96		public void runTest() throws Exception {throw new Exception();}});97		runner.doRun(suite);98		assertEquals(expected, output.toString());99	}100	101	private String expected(String[] lines) {102		OutputStream expected= new ByteArrayOutputStream();103		PrintStream expectedWriter= new PrintStream(expected);104		for (int i= 0; i < lines.length; i++)
...

Source:ForwardCompatibilityPrintingTest.java

...38				"Tests run: 1,  Failures: 0,  Errors: 1", "" });39		ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {40			@Override41			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	}
...

getWriter

Using AI Code Generation

1package com.javatpoint;  2import org.junit.Test;  3import static org.junit.Assert.assertEquals;  4public class TestJunit1 {  5String message = "Robert";  6MessageUtil messageUtil = new MessageUtil(message);  7public void testPrintMessage() {  8System.out.println("Inside testPrintMessage()");  9assertEquals(message,messageUtil.printMessage());  10}  11}12package com.javatpoint;  13import org.junit.runner.JUnitCore;  14import org.junit.runner.Result;  15import org.junit.runner.notification.Failure;  16public class TestRunner {  17public static void main(String[] args) {  18Result result = JUnitCore.runClasses(TestJunit1.class);  19for (Failure failure : result.getFailures()) {  20System.out.println(failure.toString());  21}  22System.out.println(result.wasSuccessful());  23}  24}25Inside testPrintMessage()

getWriter

Using AI Code Generation

1package com.javatpoint;  2import org.junit.runner.JUnitCore;  3import org.junit.runner.Result;  4import org.junit.runner.notification.Failure;  5import java.io.*;  6public class TestRunner{  7public static void main(String[] args){  8Result result=JUnitCore.runClasses(TestJunit.class);  9for (Failure failure : result.getFailures()) {  10System.out.println(failure.toString());  11}  12System.out.println(result.wasSuccessful());  13try{  14FileWriter fw=new FileWriter("D:\\testout.txt");  15fw.write(result.toString());  16fw.close();  17}catch(Exception e){System.out.println(e);}  18System.out.println("Success...");  19}  20}21OK (1 test)

getWriter

Using AI Code Generation

1package com.example;2import java.io.PrintWriter;3import java.io.StringWriter;4import junit.framework.Test;5import junit.framework.TestCase;6import junit.framework.TestResult;7import junit.textui.ResultPrinter;8public class JunitTest extends TestCase {9   public void testAdd() {10      assertEquals(2, 1 + 1);11   }12   public void testMultiply() {13      assertEquals(6, 2 * 3);14   }15   public static void main(String[] args) {16      TestResult result = new TestResult();17      Test test = new JunitTest("testAdd");18      ResultPrinter printer = new ResultPrinter(new PrintWriter(new StringWriter()));19      printer.print(result, test);20   }21}22package com.example;23import java.io.PrintWriter;24import java.io.StringWriter;25import junit.framework.Test;26import junit.framework.TestCase;27import junit.framework.TestResult;28import junit.textui.ResultPrinter;29public class JunitTest extends TestCase {30   public void testAdd() {31      assertEquals(2, 1 + 1);32   }33   public void testMultiply() {34      assertEquals(6, 2 * 3);35   }36   public static void main(String[] args) {37      TestResult result = new TestResult();38      Test test = new JunitTest("testAdd");39      ResultPrinter printer = new ResultPrinter(new PrintWriter(new StringWriter()));40      printer.print(result, test);41   }42}43package com.example;44import org.junit.After;45import org.junit.Before;46import org.junit.Test;47public class JunitTest {48   public void before() {49      System.out.println("Before");50   }51   public void testAdd() {52      System.out.println("Add");53   }

getWriter

Using AI Code Generation

1public class TestRunner {2    public static void main(String[] args) {3        Result result = JUnitCore.runClasses(TestJunit.class);4        for (Failure failure : result.getFailures()) {5            System.out.println(failure.toString());6        }7        System.out.println(result.wasSuccessful());8    }9}

getWriter

Using AI Code Generation

1import java.io.PrintWriter;2import java.io.StringWriter;3import junit.framework.Test;4import junit.framework.TestResult;5import junit.framework.TestSuite;6import junit.textui.ResultPrinter;7public class TestRunner {8   public static void main(String[] args) {9      TestResult result = new TestResult();10      TestSuite suite = new TestSuite(TestJunit1.class);11      suite.addTest(new TestJunit2("testAdd"));12      suite.run(result);13      StringWriter sw = new StringWriter();14      PrintWriter pw = new PrintWriter(sw);15      ResultPrinter printer = new ResultPrinter(pw);16      printer.print(result);17      System.out.println(sw.toString());18   }19}20import junit.framework.Test;21import junit.framework.TestSuite;22import junit.textui.TestRunner;23public class TestRunner {24   public static void main(String[] args) {25      TestRunner runner = new TestRunner();26      TestResult result = runner.doRun(suite());27      System.exit(result.errorCount() + result.failureCount());28   }29   public static Test suite() {30      TestSuite suite = new TestSuite(TestJunit1.class);31      suite.addTest(new TestJunit2("testAdd"));32      return suite;33   }34}35import junit.framework.Test;36import junit.framework.TestSuite;37import junit.textui.TestRunner;38public class TestRunner {39   public static void main(String[] args) {40      TestRunner runner = new TestRunner();41      TestResult result = runner.doRun(suite());42      System.exit(result.errorCount() + result.failureCount());43   }44   public static Test suite() {45      TestSuite suite = new TestSuite();46      suite.addTest(new TestJunit1("testAdd"));47      suite.addTest(new TestJunit2("testAdd"));48      return suite;49   }50}51import junit.framework.Test;52import junit.framework.TestSuite;53import junit.swingui.TestRunner;54public class TestRunner {

getWriter

Using AI Code Generation

1package com.example;2import junit.framework.Test;3import junit.framework.TestResult;4import junit.textui.ResultPrinter;5import junit.textui.TestRunner;6import java.io.*;7public class TestRunner {8  public static void main(String[] args) {9    try {10      TestResult result = new TestResult();11      ResultPrinter printer = new ResultPrinter(new PrintWriter(new FileWriter("testresults.txt")));12      result.addListener(printer);13      Test test = new TestSuite(MyTest.class);14      test.run(result);15      printer.print(result);16    } catch (IOException e) {17      e.printStackTrace();18    }19  }20}

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JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
What is the JUnit framework
Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.