Best Assertj code snippet using org.assertj.core.error.ShouldBeEqual.smartErrorMessage
Source: ShouldBeEqual.java
...103 * @return the created {@code AssertionError}.104 */105 @Override106 public AssertionError newAssertionError(Description description, Representation representation) {107 String message = smartErrorMessage(description, representation);108 // only use JUnit error message if the comparison strategy used was standard, otherwise we need to mention109 // comparison strategy in the assertion error message to make it clear to the user it was used.110 if (comparisonStrategy.isStandard() && !actualAndExpectedHaveSameStringRepresentation()) {111 // comparison strategy is standard -> try to build an AssertionFailedError used in JUnit 5 that is nicely displayed in IDEs112 AssertionError assertionFailedError = assertionFailedError(message, representation);113 // assertionFailedError != null means that JUnit 5 and opentest4j are in the classpath114 if (assertionFailedError != null) return assertionFailedError;115 // Junit5 was not used, try to build a JUnit 4 ComparisonFailure that is nicely displayed in IDEs116 AssertionError error = comparisonFailure(description);117 // error != null means that JUnit 4 was in the classpath and we build a ComparisonFailure.118 if (error != null) return error;119 }120 AssertionError assertionFailedError = assertionFailedError(message, representation);121 // assertionFailedError != null means that JUnit 5 and opentest4j was in the classpath122 if (assertionFailedError != null) return assertionFailedError;123 // No JUnit in the classpath => fall back to default error message124 return Failures.instance().failure(message);125 }126 protected boolean actualAndExpectedHaveSameStringRepresentation() {127 return Objects.equals(representation.toStringOf(actual), representation.toStringOf(expected));128 }129 /**130 * Builds and returns an error message from the given description using {@link #expected} and {@link #actual} basic131 * representation if their description differ otherwise use132 * {@link #defaultDetailedErrorMessage(Description, Representation)} to represent them differently.133 *134 * @param description the {@link Description} used to build the returned error message135 * @param representation the {@link org.assertj.core.presentation.Representation} used to build String representation136 * of object137 * @return the error message from description using {@link #expected} and {@link #actual} "smart" representation.138 */139 protected String smartErrorMessage(Description description, Representation representation) {140 if (actualAndExpectedHaveSameStringRepresentation()) {141 // This happens for example when actual = 42f and expected = 42d, which will give this error:142 // actual : "42" and expected : "42".143 // JUnit 4 manages this case even worst, it will output something like :144 // "java.lang.String expected:java.lang.String<42.0> but was: java.lang.String<42.0>"145 // which makes things even more confusing since we lost the fact that 42 was a float or a double.146 // It is therefore better to built our own description without using ComparisonFailure, the147 // only drawback is that it won't look nice in IDEs.148 return defaultDetailedErrorMessage(description, representation);149 }150 return comparisonStrategy.isStandard()151 ? messageFormatter.format(description, representation, EXPECTED_BUT_WAS_MESSAGE, actual, expected)152 : messageFormatter.format(description, representation, EXPECTED_BUT_WAS_MESSAGE_USING_COMPARATOR,153 actual, expected, comparisonStrategy);...
smartErrorMessage
Using AI Code Generation
1 Object actual = 1;2 Object expected = 2;3 AssertionError assertionError = expectAssertionError(() -> assertThat(actual).isEqualTo(expected));4 String errorMessage = smartErrorMessage(assertionError);5 assertThat(errorMessage).isEqualTo("expected:<2> but was:<1>");6 Object actual = 1;7 Object expected = 2;8 AssertionError assertionError = expectAssertionError(() -> assertThat(actual).isEqualTo(expected));9 String errorMessage = smartErrorMessage(assertionError);10 assertThat(errorMessage).isEqualTo("expected:<2> but was:<1>");
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