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How to use isStandard method of org.assertj.core.internal.ComparatorBasedComparisonStrategy class

Best Assertj code snippet using org.assertj.core.internal.ComparatorBasedComparisonStrategy.isStandard

Source:ShouldBeEqual.java

...47    public AssertionError newAssertionError(Description description, Representation representation) {48        String message = smartErrorMessage(description, representation);49        // only use JUnit error message if the comparison strategy used was standard, otherwise we need to mention50        // comparison strategy in the assertion error message to make it clear to the user it was used.51        if (comparisonStrategy.isStandard() && !actualAndExpectedHaveSameStringRepresentation()) {52            // comparison strategy is standard -> try to build an AssertionFailedError used in JUnit 5 that is nicely displayed in IDEs53            AssertionError assertionFailedError = assertionFailedError(message, representation);54            // assertionFailedError != null means that JUnit 5 and opentest4j are in the classpath55            if (assertionFailedError != null) {56                return assertionFailedError;57            }58            // Junit5 was not used, try to build a JUnit 4 ComparisonFailure that is nicely displayed in IDEs59            AssertionError error = comparisonFailure(description);60            // error != null means that JUnit 4 was in the classpath and we build a ComparisonFailure.61            if (error != null) {62                return error;63            }64        }65        AssertionError assertionFailedError = assertionFailedError(message, representation);66        // assertionFailedError != null means that JUnit 5 and opentest4j was in the classpath67        if (assertionFailedError != null) {68            return assertionFailedError;69        }70        // No JUnit in the classpath => fall back to default error message71        return Failures.instance().failure(message);72    }73    private AssertionError comparisonFailure(Description description) {74        try {75            AssertionError comparisonFailure = newComparisonFailure(76                descriptionFormatter.format(description).trim());77            Failures.instance().removeAssertJRelatedElementsFromStackTraceIfNeeded(comparisonFailure);78            return comparisonFailure;79        } catch (Throwable e) {80            return null;81        }82    }83    private AssertionError newComparisonFailure(String description) throws Exception {84        Object o = constructorInvoker.newInstance("org.junit.ComparisonFailure",85            MSG_ARG_TYPES,86            description,87            representation.toStringOf(expected),88            representation.toStringOf(actual));89        if (o instanceof AssertionError) {90            return (AssertionError) o;91        }92        return null;93    }94    private AssertionError assertionFailedError(String message, Representation representation) {95        try {96            Object o = constructorInvoker.newInstance("org.opentest4j.AssertionFailedError",97                MSG_ARG_TYPES_FOR_ASSERTION_FAILED_ERROR,98                message,99                representation.toStringOf(expected),100                representation.toStringOf(actual));101            if (o instanceof AssertionError) {102                AssertionError assertionError = (AssertionError) o;103                Failures.instance().removeAssertJRelatedElementsFromStackTraceIfNeeded(assertionError);104                return assertionError;105            }106            return null;107        } catch (Throwable e) {108            return null;109        }110    }111    /**112     * Builds and returns an error message from the given description using expected and actual basic113     * representation if their description differ otherwise use defaultDetailedErrorMessage to represent them114     * differently.115     */116    protected String smartErrorMessage(Description description, Representation representation) {117        if (actualAndExpectedHaveSameStringRepresentation()) {118            // This happens for example when actual = 42f and expected = 42d, which will give this error:119            // actual : "42" and expected : "42".120            // JUnit 4 manages this case even worst, it will output something like :121            // "java.lang.String expected:java.lang.String<42.0> but was: java.lang.String<42.0>"122            // which makes things even more confusing since we lost the fact that 42 was a float or a double.123            // It is therefore better to built our own description without using ComparisonFailure, the124            // only drawback is that it won't look nice in IDEs.125            return defaultDetailedErrorMessage(description, representation);126        }127        return comparisonStrategy.isStandard()128            ? messageFormatter.format(description, representation, EXPECTED_BUT_WAS_MESSAGE, expected, actual)129            : messageFormatter.format(description, representation, EXPECTED_BUT_WAS_MESSAGE_USING_COMPARATOR,130                expected, actual, comparisonStrategy);131    }132    protected boolean actualAndExpectedHaveSameStringRepresentation() {133        return Objects.equals(representation.toStringOf(actual), representation.toStringOf(expected));134    }135    /**136     * Builds and returns an error message from description using detailedExpected() and detailed representation.137     *138     * @param description139     * @param representation140     * @return141     */...

Source:ComparatorBasedComparisonStrategy.java

...192  public boolean isGreaterThan(Object actual, Object other) {193    return comparator.compare(actual, other) > 0;194  }195  @Override196  public boolean isStandard() {197    return false;198  }199}...

isStandard

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.ComparatorBasedComparisonStrategy;3import org.junit.Test;4import java.util.Comparator;5public class TestClass {6    public void test() {7        ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy();8        Comparator<String> comparator = new Comparator<String>() {9            public int compare(String o1, String o2) {10                return o1.compareTo(o2);11            }12        };13        Assertions.assertThat(strategy.isStandard(comparator)).isTrue();14    }15}16import org.assertj.core.api.Assertions;17import org.assertj.core.internal.ComparatorBasedComparisonStrategy;18import org.junit.Test;19import java.util.Comparator;20public class TestClass {21    public void test() {22        ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy();23        Comparator<String> comparator = new Comparator<String>() {24            public int compare(String o1, String o2) {25                return o1.compareTo(o2);26            }27        };28        Assertions.assertThat(strategy.isStandard(comparator)).isFalse();29    }30}

isStandard

Using AI Code Generation

1public class Test {2    public static void main(String[] args) {3        ComparatorBasedComparisonStrategy c = new ComparatorBasedComparisonStrategy();4        System.out.println(c.isStandard(new Comparator<Object>() {5            public int compare(Object o1, Object o2) {6                return 0;7            }8        }));9    }10}11public class Test {12    public static void main(String[] args) {13        ComparatorBasedComparisonStrategy c = new ComparatorBasedComparisonStrategy();14        System.out.println(c.isStandard(new Comparator<Object>() {15            public int compare(Object o1, Object o2) {16                return 0;17            }18        }));19    }20}21public boolean isStandard(Comparator<?> comparator) {22    return comparator == null || comparator == STANDARD_COMPARATOR;23}24public static final Comparator<Object> STANDARD_COMPARATOR = new StandardComparator();25private static class StandardComparator implements Comparator<Object>, Serializable {26    private static final long serialVersionUID = 1L;27    public int compare(Object o1, Object o2) {28      return compareForEquals(o1, o2);29    }30  }

isStandard

Using AI Code Generation

1public class Test {2    public static void main(String[] args) {3        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();4        cbcs.isStandardComparator();5    }6}7public class Test {8    public static void main(String[] args) {9        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();10        cbcs.isStandardComparator();11    }12}13public class Test {14    public static void main(String[] args) {15        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();16        cbcs.isStandardComparator();17    }18}19public class Test {20    public static void main(String[] args) {21        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();22        cbcs.isStandardComparator();23    }24}25public class Test {26    public static void main(String[] args) {27        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();28        cbcs.isStandardComparator();29    }30}31public class Test {32    public static void main(String[] args) {33        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();34        cbcs.isStandardComparator();35    }36}37public class Test {38    public static void main(String[] args) {39        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();40        cbcs.isStandardComparator();41    }42}43public class Test {44    public static void main(String[] args) {45        ComparatorBasedComparisonStrategy cbcs = new ComparatorBasedComparisonStrategy();46        cbcs.isStandardComparator();47    }48}

isStandard

Using AI Code Generation

1package org.assertj.core.internal;2import org.assertj.core.api.Assertions;3import org.assertj.core.internal.ComparatorBasedComparisonStrategy;4import org.junit.Test;5public class ComparatorBasedComparisonStrategy_isStandard_Test {6  public void should_return_true_if_comparator_is_null() {7    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(null);8    Assertions.assertThat(strategy.isStandard()).isTrue();9  }10}11package org.assertj.core.internal;12import org.assertj.core.api.Assertions;13import org.assertj.core.internal.ComparatorBasedComparisonStrategy;14import org.junit.Test;15public class ComparatorBasedComparisonStrategy_isStandard_Test {16  public void should_return_false_if_comparator_is_not_null() {17    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new TestComparator());18    Assertions.assertThat(strategy.isStandard()).isFalse();19  }20}21package org.assertj.core.internal;22import org.assertj.core.api.Assertions;23import org.assertj.core.internal.ComparatorBasedComparisonStrategy;24import org.junit.Test;25public class ComparatorBasedComparisonStrategy_isStandard_Test {26  public void should_return_false_if_comparator_is_not_null() {27    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new TestComparator());28    Assertions.assertThat(strategy.isStandard()).isFalse();29  }30}31package org.assertj.core.internal;32import org.assertj.core.api.Assertions;33import org.assertj.core.internal.ComparatorBasedComparisonStrategy;34import org.junit.Test;35public class ComparatorBasedComparisonStrategy_isStandard_Test {36  public void should_return_false_if_comparator_is_not_null() {37    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new TestComparator());38    Assertions.assertThat(strategy.isStandard()).isFalse();39  }40}

isStandard

Using AI Code Generation

1package org.assertj.core.internal;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.util.Lists.newArrayList;4import static org.assertj.core.util.Sets.newLinkedHashSet;5import java.util.Comparator;6import java.util.List;7import java.util.Set;8import org.junit.Test;9public class ComparatorBasedComparisonStrategy_isStandard_Test {10  public void should_return_true_if_comparator_is_standard() {11    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(Comparator.naturalOrder());12    assertThat(strategy.isStandard()).isTrue();13  }14  public void should_return_false_if_comparator_is_not_standard() {15    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new Comparator<Object>() {16      public int compare(Object o1, Object o2) {17        return 0;18      }19    });20    assertThat(strategy.isStandard()).isFalse();21  }22  public void should_return_false_if_comparator_is_null() {23    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(null);24    assertThat(strategy.isStandard()).isFalse();25  }26  public void should_return_false_if_comparator_is_not_standard_and_is_not_comparable() {27    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new Comparator<Object>() {28      public int compare(Object o1, Object o2) {29        return 0;30      }31    });32    assertThat(strategy.isStandard()).isFalse();33  }34  public void should_return_true_if_comparator_is_standard_and_is_comparable() {35    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(Comparator.naturalOrder());36    assertThat(strategy.isStandard()).isTrue();37  }38  public void should_return_false_if_comparator_is_not_standard_and_is_comparable() {39    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new Comparator<Object>() {40      public int compare(Object o1, Object o2) {41        return 0;42      }43    });44    assertThat(strategy.isStandard()).isFalse();45  }46  public void should_return_true_if_comparator_is_standard_and_is_comparable_and_is_iterable() {47    ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(Comparator.naturalOrder());48    assertThat(strategy.isStandard()).isTrue();49  }

isStandard

Using AI Code Generation

1public class Test {2    public static void main(String[] args) {3        ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new Comparator() {4            public int compare(Object o1, Object o2) {5                return 0;6            }7        });8        System.out.println(strategy.isStandard());9    }10}11import java.util.Comparator;12import java.util.List;13import java.util.stream.Collectors;14import java.util.stream.IntStream;15import org.assertj.core.api.Assertions;16import org.assertj.core.internal.ComparatorBasedComparisonStrategy;17import org.assertj.core.internal.StandardComparisonStrategy;18import org.junit.Test;19public class Test {20    public void test() {21        ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new Comparator() {22            public int compare(Object o1, Object o2) {23                return 0;24            }25        });26        Assertions.assertThat(strategy.isStandard()).isFalse();27    }28    public void test2() {29        ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(new Comparator() {30            public int compare(Object o1, Object o2) {31                return 0;32            }33        });34        List<Integer> list = IntStream.range(1, 10).boxed().collect(Collectors.toList());35        Assertions.assertThat(list).usingComparator(strategy).contains(1, 2, 3);36    }37    public void test3() {38        StandardComparisonStrategy strategy = StandardComparisonStrategy.instance();39        List<Integer> list = IntStream.range(1, 10).boxed().collect(Collectors.toList());40        Assertions.assertThat(list).usingComparator(strategy).contains(1, 2, 3);41    }42}

isStandard

Using AI Code Generation

1public class AssertJTest {2    public static void main(String[] args) {3        ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy();4        System.out.println(strategy.isStandardComparator());5    }6}7So, in this article we saw the importance of using AssertJ for testing and how to use it. We also saw the different ways to use it. I hope you enjoyed this article. If you have any questions or sugge

isStandard

Using AI Code Generation

1public class 1 {2    public static void main(String[] args) {3        Comparator<String> comparator = (String s1, String s2) -> s1.compareTo(s2);4        ComparatorBasedComparisonStrategy strategy = new ComparatorBasedComparisonStrategy(comparator);5        System.out.println("Is standard comparator: " + strategy.isStandard(comparator));6    }7}

isStandard

Using AI Code Generation

1public boolean isStandard(Comparator<?> comparator) {2    return getComparatorBasedComparisonStrategy().isStandard(comparator);3}4public boolean isStandard(Comparator<?> comparator) {5    return getComparatorBasedComparisonStrategy().isStandard(comparator);6}7public boolean isStandard(Comparator<?> comparator) {8    return getComparatorBasedComparisonStrategy().isStandard(comparator);9}10public boolean isStandard(Comparator<?> comparator) {11    return getComparatorBasedComparisonStrategy().isStandard(comparator);12}13public boolean isStandard(Comparator<?> comparator) {14    return getComparatorBasedComparisonStrategy().isStandard(comparator);15}16public boolean isStandard(Comparator<?> comparator) {17    return getComparatorBasedComparisonStrategy().isStandard(comparator);18}19public boolean isStandard(Comparator<?> comparator) {20    return getComparatorBasedComparisonStrategy().isStandard(comparator

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