How to use getExpected method of junit.framework.ComparisonFailure class

Best junit code snippet using junit.framework.ComparisonFailure.getExpected

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...86 }87 private FailedComparison getFailedComparison(Throwable exception) {88 if (exception instanceof AssertionFailedError) {89 AssertionFailedError assertionFailedError= (AssertionFailedError) exception;90 ValueWrapper expected= assertionFailedError.getExpected();91 ValueWrapper actual= assertionFailedError.getActual();92 if (expected == null || actual == null) {93 return null;94 }95 return new FailedComparison(expected.getStringRepresentation(), actual.getStringRepresentation());96 }97 if (exception instanceof MultipleFailuresError) {98 String expectedStr= ""; /​/​$NON-NLS-1$99 String actualStr= ""; /​/​$NON-NLS-1$100 String delimiter= "\n\n"; /​/​$NON-NLS-1$101 List<Throwable> failures= ((MultipleFailuresError) exception).getFailures();102 for (Throwable assertionError : failures) {103 if (assertionError instanceof AssertionFailedError) {104 AssertionFailedError assertionFailedError= (AssertionFailedError) assertionError;105 ValueWrapper expected= assertionFailedError.getExpected();106 ValueWrapper actual= assertionFailedError.getActual();107 if (expected == null || actual == null) {108 return null;109 }110 expectedStr+= expected.getStringRepresentation() + delimiter;111 actualStr+= actual.getStringRepresentation() + delimiter;112 } else {113 return null;114 }115 }116 return new FailedComparison(expectedStr, actualStr);117 }118 /​/​ Avoid reference to ComparisonFailure initially to avoid NoClassDefFoundError for ComparisonFailure when junit.jar is not on the build path 119 String classname= exception.getClass().getName();120 if (classname.equals("junit.framework.ComparisonFailure")) { /​/​$NON-NLS-1$121 junit.framework.ComparisonFailure comparisonFailure= (junit.framework.ComparisonFailure) exception;122 return new FailedComparison(comparisonFailure.getExpected(), comparisonFailure.getActual());123 }124 if (classname.equals("org.junit.ComparisonFailure")) { /​/​$NON-NLS-1$125 org.junit.ComparisonFailure comparisonFailure= (org.junit.ComparisonFailure) exception;126 return new FailedComparison(comparisonFailure.getExpected(), comparisonFailure.getActual());127 }128 return null;129 }130 @Override131 public void executionSkipped(TestIdentifier testIdentifier, String reason) {132 if (testIdentifier.isContainer() && fTestPlan != null) {133 fTestPlan.getDescendants(testIdentifier).stream().filter(t -> t.isTest()).forEachOrdered(t -> notifySkipped(t));134 } else {135 notifySkipped(testIdentifier);136 }137 }138 private void notifySkipped(TestIdentifier testIdentifier) {139 /​/​ Send message to listeners which would be stale otherwise140 ITestIdentifier identifier= getIdentifier(testIdentifier, true, false);...

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...64 final int failureMessageLength = failureMessage != null ? failureMessage.length() : 0;65 attrs.put("details", failureIdx > -1 ? trace.substring(failureIdx + failureMessageLength) : trace);66 67 if (notification != null) {68 attrs.put("expected", notification.getExpected());69 attrs.put("actual", notification.getActual());70 final String filePath = notification.getFilePath();71 if (filePath != null) {72 attrs.put("expectedFile", filePath);73 }74 final String actualFilePath = notification.getActualFilePath();75 if (actualFilePath != null) {76 attrs.put("actualFile", actualFilePath);77 }78 final int expectedIdx = trace.indexOf("expected:<");79 final String comparisonFailureMessage;80 if (expectedIdx > 0) {81 comparisonFailureMessage = trace.substring(0, expectedIdx);82 }83 else if (failureIdx > -1) {84 comparisonFailureMessage = trace.substring(0, failureIdx + failureMessageLength);85 }86 else {87 comparisonFailureMessage = (failureMessageLength > 0 ? failureMessage + "\n" : "") + "Comparison Failure: ";88 }89 attrs.put("message", comparisonFailureMessage);90 }91 else {92 Throwable throwableCause = null;93 try {94 throwableCause = throwable.getCause();95 }96 catch (Throwable ignored) {}97 if (!isAssertionError(throwable.getClass()) && !isAssertionError(throwableCause != null ? throwableCause.getClass() : null)) {98 attrs.put("error", "true");99 }100 attrs.put("message", failureIdx > -1 ? trace.substring(0, failureIdx + failureMessageLength) 101 : failureMessage != null ? failureMessage : "");102 }103 }104 public static boolean isAssertionError(Class throwableClass) {105 if (throwableClass == null) return false;106 final String throwableClassName = throwableClass.getName();107 if (throwableClassName.equals(ASSERTION_CLASS_NAME) || throwableClassName.equals(ASSERTION_FAILED_CLASS_NAME)) return true;108 return isAssertionError(throwableClass.getSuperclass());109 }110 public String getFilePath() {111 return myFilePath;112 }113 public String getActualFilePath() {114 return myActualFilePath;115 }116 public String getExpected() {117 return myExpected;118 }119 public String getActual() {120 return myActual;121 }122 public static ComparisonFailureData create(Throwable assertion) {123 if (assertion instanceof FileComparisonFailure) {124 final FileComparisonFailure comparisonFailure = (FileComparisonFailure)assertion;125 return new ComparisonFailureData(comparisonFailure.getExpected(), comparisonFailure.getActual(), 126 comparisonFailure.getFilePath(), comparisonFailure.getActualFilePath());127 }128 try {129 return new ComparisonFailureData(getExpected(assertion), getActual(assertion));130 }131 catch (Throwable e) {132 return null;133 }134 }135 public static String getActual(Throwable assertion) throws IllegalAccessException, NoSuchFieldException {136 return get(assertion, ACTUAL, "fActual");137 }138 139 public static String getExpected(Throwable assertion) throws IllegalAccessException, NoSuchFieldException {140 return get(assertion, EXPECTED, "fExpected");141 }142 143 private static String get(final Throwable assertion, final Map staticMap, final String fieldName) throws IllegalAccessException, NoSuchFieldException {144 String actual;145 if (assertion instanceof ComparisonFailure) {146 actual = (String)((Field)staticMap.get(ComparisonFailure.class)).get(assertion);147 }148 else if (assertion instanceof org.junit.ComparisonFailure) {149 actual = (String)((Field)staticMap.get(org.junit.ComparisonFailure.class)).get(assertion);150 }151 else {152 Field field = assertion.getClass().getDeclaredField(fieldName);153 field.setAccessible(true);...

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...55 /​/​ Can't load method instructions.56 */​57 throw new UnsupportedOperationException("Method not decompiled: junit.framework.ComparisonFailure.getActual():java.lang.String");58 }59 public java.lang.String getExpected() {60 /​* JADX: method processing error */​61/​*62 Error: jadx.core.utils.exceptions.DecodeException: Load method exception in method: junit.framework.ComparisonFailure.getExpected():java.lang.String63 at jadx.core.dex.nodes.MethodNode.load(MethodNode.java:113)64 at jadx.core.dex.nodes.ClassNode.load(ClassNode.java:256)65 at jadx.core.ProcessClass.process(ProcessClass.java:34)66 at jadx.api.JadxDecompiler.processClass(JadxDecompiler.java:281)67 at jadx.api.JavaClass.decompile(JavaClass.java:59)68 at jadx.api.JadxDecompiler$1.run(JadxDecompiler.java:161)69Caused by: jadx.core.utils.exceptions.DecodeException: in method: junit.framework.ComparisonFailure.getExpected():java.lang.String70 at jadx.core.dex.instructions.InsnDecoder.decodeInsns(InsnDecoder.java:46)71 at jadx.core.dex.nodes.MethodNode.load(MethodNode.java:98)72 ... 5 more73Caused by: java.lang.IllegalArgumentException: bogus opcode: 00e574 at com.android.dx.io.OpcodeInfo.get(OpcodeInfo.java:1196)75 at com.android.dx.io.OpcodeInfo.getFormat(OpcodeInfo.java:1212)76 at com.android.dx.io.instructions.DecodedInstruction.decode(DecodedInstruction.java:72)77 at jadx.core.dex.instructions.InsnDecoder.decodeInsns(InsnDecoder.java:43)78 ... 6 more79*/​80 /​*81 /​/​ Can't load method instructions.82 */​83 throw new UnsupportedOperationException("Method not decompiled: junit.framework.ComparisonFailure.getExpected():java.lang.String");84 }85 public java.lang.String getMessage() {86 /​* JADX: method processing error */​87/​*88 Error: jadx.core.utils.exceptions.DecodeException: Load method exception in method: junit.framework.ComparisonFailure.getMessage():java.lang.String89 at jadx.core.dex.nodes.MethodNode.load(MethodNode.java:113)90 at jadx.core.dex.nodes.ClassNode.load(ClassNode.java:256)91 at jadx.core.ProcessClass.process(ProcessClass.java:34)92 at jadx.api.JadxDecompiler.processClass(JadxDecompiler.java:281)93 at jadx.api.JavaClass.decompile(JavaClass.java:59)94 at jadx.api.JadxDecompiler$1.run(JadxDecompiler.java:161)95Caused by: jadx.core.utils.exceptions.DecodeException: in method: junit.framework.ComparisonFailure.getMessage():java.lang.String96 at jadx.core.dex.instructions.InsnDecoder.decodeInsns(InsnDecoder.java:46)97 at jadx.core.dex.nodes.MethodNode.load(MethodNode.java:98)...

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...69 String status = (assumptionFailed || exception instanceof AssertionError) ? MessageIds.TEST_FAILED : MessageIds.TEST_ERROR;70 FailedComparison comparison = null;71 if (exception instanceof junit.framework.ComparisonFailure) {72 junit.framework.ComparisonFailure comparisonFailure = (junit.framework.ComparisonFailure) exception;73 comparison = new FailedComparison(comparisonFailure.getExpected(), comparisonFailure.getActual());74 } else if (exception instanceof org.junit.ComparisonFailure) {75 org.junit.ComparisonFailure comparisonFailure = (org.junit.ComparisonFailure) exception;76 comparison = new FailedComparison(comparisonFailure.getExpected(), comparisonFailure.getActual());77 }78 testReferenceFailure = new TestReferenceFailure(identifier, status, failure.getTrace(), comparison);79 } catch (RuntimeException e) {80 StringWriter stringWriter = new StringWriter();81 e.printStackTrace(new PrintWriter(stringWriter));82 testReferenceFailure = new TestReferenceFailure(identifier, MessageIds.TEST_FAILED, stringWriter.getBuffer().toString(), null);83 }84 fNotified.notifyTestFailed(testReferenceFailure);85 }86 @Override87 public void testIgnored(Description plan) throws Exception {88 /​/​ Send message to listeners which would be stale otherwise89 ITestIdentifier identifier = getIdentifier(plan, true, false);90 fNotified.notifyTestStarted(identifier);...

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...72 String status= (assumptionFailed || exception instanceof AssertionError) ? MessageIds.TEST_FAILED : MessageIds.TEST_ERROR;73 FailedComparison comparison= null;74 if (exception instanceof junit.framework.ComparisonFailure) {75 junit.framework.ComparisonFailure comparisonFailure= (junit.framework.ComparisonFailure) exception;76 comparison= new FailedComparison(comparisonFailure.getExpected(), comparisonFailure.getActual());77 } else if (exception instanceof org.junit.ComparisonFailure) {78 org.junit.ComparisonFailure comparisonFailure= (org.junit.ComparisonFailure) exception;79 comparison= new FailedComparison(comparisonFailure.getExpected(), comparisonFailure.getActual());80 }81 testReferenceFailure= new TestReferenceFailure(identifier, status, failure.getTrace(), comparison);82 } catch (RuntimeException e) {83 StringWriter stringWriter= new StringWriter();84 e.printStackTrace(new PrintWriter(stringWriter));85 testReferenceFailure= new TestReferenceFailure(identifier, MessageIds.TEST_FAILED, stringWriter.getBuffer().toString(), null);86 }87 fNotified.notifyTestFailed(testReferenceFailure);88 }89 @Override90 public void testIgnored(Description plan) throws Exception {91 /​/​ Send message to listeners which would be stale otherwise92 ITestIdentifier identifier= getIdentifier(plan, true, false);93 fNotified.notifyTestStarted(identifier);...

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getExpected

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1import junit.framework.ComparisonFailure;2public class ComparisonFailureTest {3 public static void main(String[] args) {4 ComparisonFailure comparisonFailure = new ComparisonFailure("message", "expected", "actual");5 System.out.println(comparisonFailure.getExpected());6 }7}8Recommended Posts: JUnit - getActual() method in ComparisonFailure class9JUnit - getActual() method in ComparisonFailure class10JUnit - getExpected() method in ComparisonFailure class

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getExpected

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1public class ComparisonFailureTest {2 public void testComparisonFailure() {3 try {4 assertEquals("a", "b");5 } catch (ComparisonFailure e) {6 String expected = e.getExpected();7 String actual = e.getActual();8 }9 }10}11public class ComparisonFailureTest {12 public void testComparisonFailure() {13 try {14 assertEquals("a", "b");15 } catch (ComparisonFailure e) {16 String expected = e.getExpected();17 String actual = e.getActual();18 }19 }20}

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getExpected

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1import org.junit.Test;2import org.junit.Assert;3import org.junit.ComparisonFailure;4public class ComparisonFailureTest {5 public void testGetExpected() {6 try {7 Assert.assertEquals("hello", "world");8 } catch (ComparisonFailure e) {9 System.out.println(e.getExpected());10 }11 }12}

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getExpected

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1public class TestJunit1 {2 String message = "Robert"; 3 MessageUtil messageUtil = new MessageUtil(message);4 public void testPrintMessage() { 5 System.out.println("Inside testPrintMessage()"); 6 assertEquals(message,messageUtil.printMessage());7 }8}9OK (1 test)10public class TestJunit1 {11 String message = "Robert"; 12 MessageUtil messageUtil = new MessageUtil(message);13 public void testPrintMessage() { 14 System.out.println("Inside testPrintMessage()"); 15 assertEquals(message,messageUtil.printMessage());16 }17}181) testPrintMessage(TestJunit1)19at org.junit.Assert.fail(Assert.java:88)20at org.junit.Assert.failNotEquals(Assert.java:743)21at org.junit.Assert.assertEquals(Assert.java:118)22at org.junit.Assert.assertEquals(Assert

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getExpected

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1import org.junit.Assert;2import org.junit.Test;3public class HelloWorldTest {4 public void testHelloWorld() {5 String expected = "Hello World";6 String actual = "Hello World";7 Assert.assertEquals(expected, actual);8 }9}10java -cp .;junit-4.12.jar;hamcrest-core-1.3.jar org.junit.runner.JUnitCore HelloWorldTest11 <property name="junitjar" value="${lib}/​junit-4.12.jar"/​>12 <property name="hamcrestjar" value="${lib}/​hamcrest-core-1.3.jar"/​>13 <property name="classpath" value="${build};${junitjar};${hamcrestjar}"/​>14 <mkdir dir="${build}"/​>15 <javac srcdir="${src}" destdir="${build}" classpath="${classpath}"/​>16 <java classpath="${classpath}" fork="true">17 <sysproperty key="ant.file" value="${ant.file}"/​>18 <sysproperty key="ant.home" value="${ant.home}"/​>19 <sysproperty key="ant.version" value="${ant.version}"/​>

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If you add in Hamcrest and JUnit4, you could do:

String x = "foo bar";
Assert.assertThat(x, CoreMatchers.containsString("foo"));

With some static imports, it looks a lot better:

assertThat(x, containsString("foo"));

The static imports needed would be:

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.CoreMatchers.containsString;
https://stackoverflow.com/questions/1092219/assertcontains-on-strings-in-junit

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