How to use compare method of org.assertj.core.api.ComparatorFactory class

Best Assertj code snippet using org.assertj.core.api.ComparatorFactory.compare

Source:ComparatorFactory.java

...20  public Comparator<Double> doubleComparatorWithPrecision(double precision) {21    // can't use <> with anonymous class in java 822    return new Comparator<Double>() {23      @Override24      public int compare(Double double1, Double double2) {25        if (Doubles.instance().isNanOrInfinite(precision)) {26          throw new IllegalArgumentException("Precision should not be Nan or Infinity!");27        }28        // handle NAN or Infinity cases with Java Float behavior (and not BigDecimal that are used afterwards)29        if (Doubles.instance().isNanOrInfinite(double1) || Doubles.instance().isNanOrInfinite(double2)) {30          return Double.compare(double1, double2);31        }32        // if floats are close enough they are considered equal, otherwise we compare as BigDecimal which does exact computation.33        return isWithinPrecision(double1, double2, precision) ? 0 : asBigDecimal(double1).compareTo(asBigDecimal(double2));34      }35      @Override36      public String toString() {37        return "double comparator at precision " + precision + " (values are considered equal if diff == precision)";38      }39    };40  }41  public Comparator<Float> floatComparatorWithPrecision(float precision) {42    // can't use <> with anonymous class in java 843    return new Comparator<Float>() {44      @Override45      public int compare(Float float1, Float float2) {46        Floats floats = Floats.instance();47        if (floats.isNanOrInfinite(precision)) {48          throw new IllegalArgumentException("Precision should not be Nan or Infinity!");49        }50        // handle NAN or Infinity cases with Java Float behavior (and not BigDecimal that are used afterwards)51        if (floats.isNanOrInfinite(float1) || floats.isNanOrInfinite(float2)) {52          return Float.compare(float1, float2);53        }54        // if floats are close enough they are considered equal, otherwise we compare as BigDecimal which does exact computation.55        return isWithinPrecision(float1, float2, precision) ? 0 : asBigDecimal(float1).compareTo(asBigDecimal(float2));56      }57      @Override58      public String toString() {59        return "float comparator at precision " + precision + " (values are considered equal if diff == precision)";60      }61    };62  }63  /**64   * Convert to a precise BigDecimal object using an intermediate String.65   *66   * @param <T> type of expected and precision, which should be the subclass of java.lang.Number and java.lang.Comparable67   * @param number the Number to convert68   * @return the built BigDecimal69   */70  private static <T extends Number> BigDecimal asBigDecimal(T number) {71    return new BigDecimal(String.valueOf(number));72  }73  /**74   * Returns true if the abs(expected - precision) is &lt;= precision, false otherwise.75   * @param actual    the actual value76   * @param expected  the expected value77   * @param precision the acceptable precision78   *79   * @param <T> type of number to compare including the precision80   * @return whether true if the abs(expected - precision) is &lt;= precision, false otherwise.81   */82  private static <T extends Number> boolean isWithinPrecision(T actual, T expected, T precision) {83    BigDecimal expectedBigDecimal = asBigDecimal(expected);84    BigDecimal actualBigDecimal = asBigDecimal(actual);85    BigDecimal absDifference = expectedBigDecimal.subtract(actualBigDecimal).abs();86    BigDecimal precisionAsBigDecimal = asBigDecimal(precision);87    return absDifference.compareTo(precisionAsBigDecimal) <= 0;88  }89}...

Source:ComparatorFactory_doubleComparatorWithPrecision_Test.java

...35  void should_evaluate_to_be_equal(Double double1, Double double2, Double precision) {36    // GIVEN37    Comparator<Double> comparator = INSTANCE.doubleComparatorWithPrecision(precision);38    // WHEN39    int comparisonValue = comparator.compare(double1, double2);40    int inverseComparisonValue = comparator.compare(double2, double1);41    // THEN42    then(comparisonValue).isZero();43    then(inverseComparisonValue).isZero();44  }45  @ParameterizedTest46  @CsvSource({47      "1.1, 1.0, 0.05",48      "0.111, 0.110, 0.00099",49      "0.12346, 0.12345, 0.0000099",50      "0.7654321, 0.7654320, 0.000000099",51      "0.7654321, 0.7654320, 9e-8",52      "1.2464, 1.2463, 0.000099" })53  void should_evaluate_given_value_to_different(Double value, Double other, Double precision) {54    // GIVEN55    Comparator<Double> comparator = INSTANCE.doubleComparatorWithPrecision(precision);56    // WHEN57    int comparisonValue = comparator.compare(value, other);58    int inverseComparisonValue = comparator.compare(other, value);59    // THEN60    then(comparisonValue).isOne();61    then(inverseComparisonValue).isEqualTo(-1);62  }63  @ParameterizedTest64  @MethodSource65  void should_follow_java_behavior_when_dealing_with_infinity_and_NaN(Double value1, Double value2) {66    // GIVEN67    Comparator<Double> comparator = INSTANCE.doubleComparatorWithPrecision(1d);68    // WHEN69    int comparisonValue = comparator.compare(value1, value2);70    int javaComparisonValue = value1.compareTo(value2);71    // THEN72    then(comparisonValue).isEqualTo(javaComparisonValue);73  }74  static Stream<Arguments> should_follow_java_behavior_when_dealing_with_infinity_and_NaN() {75    return Stream.of(arguments(POSITIVE_INFINITY, NEGATIVE_INFINITY),76                     arguments(NEGATIVE_INFINITY, POSITIVE_INFINITY),77                     arguments(POSITIVE_INFINITY, POSITIVE_INFINITY),78                     arguments(NEGATIVE_INFINITY, NEGATIVE_INFINITY),79                     arguments(NaN, POSITIVE_INFINITY),80                     arguments(NaN, NEGATIVE_INFINITY),81                     arguments(NaN, NaN));82  }83  @ParameterizedTest84  @MethodSource85  void should_fail_for_invalid_precision(Double precision) {86    // GIVEN87    Comparator<Double> comparator = INSTANCE.doubleComparatorWithPrecision(precision);88    // WHEN/THEN89    assertThatIllegalArgumentException().isThrownBy(() -> comparator.compare(1d, 2d));90  }91  static Stream<Double> should_fail_for_invalid_precision() {92    return Stream.of(NaN, POSITIVE_INFINITY, NEGATIVE_INFINITY);93  }94}...

Source:ComparatorFactory_floatComparatorWithPrecision_Test.java

...35  void should_evaluate_to_be_equal(Float float1, Float float2, Float precision) {36    // GIVEN37    Comparator<Float> comparator = INSTANCE.floatComparatorWithPrecision(precision);38    // WHEN39    int comparisonValue = comparator.compare(float1, float2);40    int inverseComparisonValue = comparator.compare(float2, float1);41    // THEN42    then(comparisonValue).isZero();43    then(inverseComparisonValue).isZero();44  }45  @ParameterizedTest46  @CsvSource({47      "1.1, 1.0, 0.05",48      "0.111, 0.110, 0.00099",49      "0.12346, 0.12345, 0.0000099",50      "0.7654321, 0.7654320, 0.000000099",51      "0.7654321, 0.7654320, 9e-8",52      "1.2464, 1.2463, 0.000099" })53  void should_evaluate_given_value_to_different(Float value, Float other, Float precision) {54    // GIVEN55    Comparator<Float> comparator = INSTANCE.floatComparatorWithPrecision(precision);56    // WHEN57    int comparisonValue = comparator.compare(value, other);58    int inverseComparisonValue = comparator.compare(other, value);59    // THEN60    then(comparisonValue).isOne();61    then(inverseComparisonValue).isEqualTo(-1);62  }63  @ParameterizedTest64  @MethodSource65  void should_follow_java_behavior_when_dealing_with_infinity_and_NaN(Float value1, Float value2) {66    // GIVEN67    Comparator<Float> comparator = INSTANCE.floatComparatorWithPrecision(1f);68    // WHEN69    int comparisonValue = comparator.compare(value1, value2);70    int javaComparisonValue = value1.compareTo(value2);71    // THEN72    then(comparisonValue).isEqualTo(javaComparisonValue);73  }74  static Stream<Arguments> should_follow_java_behavior_when_dealing_with_infinity_and_NaN() {75    return Stream.of(arguments(POSITIVE_INFINITY, NEGATIVE_INFINITY),76                     arguments(NEGATIVE_INFINITY, POSITIVE_INFINITY),77                     arguments(POSITIVE_INFINITY, POSITIVE_INFINITY),78                     arguments(NEGATIVE_INFINITY, NEGATIVE_INFINITY),79                     arguments(NaN, POSITIVE_INFINITY),80                     arguments(NaN, NEGATIVE_INFINITY),81                     arguments(NaN, NaN));82  }83  @ParameterizedTest84  @MethodSource85  void should_fail_for_invalid_precision(Float precision) {86    // GIVEN87    Comparator<Float> comparator = INSTANCE.floatComparatorWithPrecision(precision);88    // WHEN/THEN89    assertThatIllegalArgumentException().isThrownBy(() -> comparator.compare(1f, 2f));90  }91  static Stream<Float> should_fail_for_invalid_precision() {92    return Stream.of(NaN, POSITIVE_INFINITY, NEGATIVE_INFINITY);93  }94}...

compare

Using AI Code Generation

1package org.example;2import java.util.Comparator;3import org.assertj.core.api.AbstractAssert;4import org.assertj.core.api.ComparatorFactory;5import org.assertj.core.api.IterableAssert;6import org.assertj.core.api.ObjectAssert;7import org.assertj.core.api.ObjectAssertFactory;8import org.assertj.core.api.ObjectArrayAssert;9import org.assertj.core.api.ObjectArrayAssertFactory;10import org.assertj.core.api.ObjectEnumerableAssert;11import org.assertj.core.api.ObjectEnumerableAssertFactory;12import org.assertj.core.api.ObjectEnumerableAssertBase;13import org.assertj.core.api.ObjectEnumerableAssertBaseTest;14import org.assertj.core.api.ObjectListAssert;15import org.assertj.core.api.ObjectListAssertFactory;16import org.assertj.core.api.ObjectSetAssert;17import org.assertj.core.api.ObjectSetAssertFactory;18import org.assertj.core.api.ObjectSortedSetAssert;19import org.assertj.core.api.ObjectSortedSetAssertFactory;20import org.assertj.core.api.ThrowableAssert;21import org.assertj.core.api.ThrowableAssertFactory;22import org.assertj.core.api.ThrowableAssertAlternative;23import org.assertj.core.api.ThrowableAssertAlternativeFactory;24import org.assertj.core.api.ThrowableAssertBase;25import org.assertj.core.api.ThrowableAssertBaseTest;26import org.assertj.core.api.ThrowableAssertNoCause;27import org.assertj.core.api.ThrowableAssertNoCauseFactory;28import org.assertj.core.api.ThrowableAssertNoCauseAlternative;29import org.assertj.core.api.ThrowableAssertNoCauseAlternativeFactory;30import org.assertj.core.api.ThrowableAssertNoCauseBase;31import org.assertj.core.api.ThrowableAssertNoCauseBaseTest;32import org.assertj.core.api.ThrowableAssertWithCause;33import org.assertj.core.api.ThrowableAssertWithCauseFactory;34import org.assertj.core.api.ThrowableAssertWithCauseAlternative;35import org.assertj.core.api.ThrowableAssertWithCauseAlternativeFactory;36import org.assertj.core.api.ThrowableAssertWithCauseBase;37import org.assertj.core.api.ThrowableAssertWithCauseBaseTest;38import org.assertj.core.api.ThrowableAssertWithMessage;39import org.assertj.core.api.ThrowableAssertWithMessageFactory;40import org.assertj.core.api.ThrowableAssertWithMessageAlternative;41import org.assertj.core.api.ThrowableAssertWithMessageAlternativeFactory;42import org.assertj.core.api.ThrowableAssertWithMessageBase;43import org.assertj.core.api.ThrowableAssertWithMessageBaseTest;44import org.assertj.core.api.ThrowableAssertWithMessageNoCause;45import org.assertj.core.api.ThrowableAssertWithMessageNoCauseFactory;46import org.assertj.core.api.ThrowableAssertWithMessageNoCauseAlternative;47import org.assertj.core.api.ThrowableAssert

compare

Using AI Code Generation

1package org.assertj.core.api;2import java.util.Comparator;3import org.assertj.core.internal.ComparatorBasedComparisonStrategy;4import org.assertj.core.internal.ComparisonStrategy;5public class ComparatorFactory {6  public static ComparatorBasedComparisonStrategy comparatorBasedComparisonStrategy(Comparator<?> comparator) {7    return new ComparatorBasedComparisonStrategy(comparator);8  }9  public static ComparisonStrategy comparatorBasedComparisonStrategy(Comparator<?> comparator, boolean reversed) {10    return new ComparatorBasedComparisonStrategy(comparator, reversed);11  }12}13package org.assertj.core.api;14import java.util.Comparator;15import org.assertj.core.internal.ComparatorBasedComparisonStrategy;16import org.assertj.core.internal.ComparisonStrategy;17public class ComparatorBasedComparisonStrategy implements ComparisonStrategy {18  private final Comparator<?> comparator;19  private final boolean reversed;20  public ComparatorBasedComparisonStrategy(Comparator<?> comparator) {21    this(comparator, false);22  }23  public ComparatorBasedComparisonStrategy(Comparator<?> comparator, boolean reversed) {24    this.comparator = comparator;25    this.reversed = reversed;26  }27  public int compare(Object o1, Object o2) {28    if (reversed) {29      return comparator.compare(o2, o1);30    }31    return comparator.compare(o1, o2);32  }33  public boolean equals(Object o1, Object o2) {34    return compare(o1, o2) == 0;35  }36  public int hashCodeOf(Object o) {37    return o.hashCode();38  }39  public boolean isOrderMaintained() {40    return true;41  }42  public boolean isTotalOrdering() {43    return false;44  }45  public String toStringOf(Object o) {46    return o.toString();47  }48}49package org.assertj.core.api;50import java.util.Comparator;51import org.assertj.core.internal.ComparatorBasedComparisonStrategy;52import org.assertj.core.internal.ComparisonStrategy;53public class Assertions {54  public static ComparatorBasedComparisonStrategy comparatorBasedComparisonStrategy(Comparator<?> comparator) {55    return new ComparatorBasedComparisonStrategy(comparator);56  }57  public static ComparisonStrategy comparatorBasedComparisonStrategy(Comparator<?> comparator, boolean reversed) {58    return new ComparatorBasedComparisonStrategy(comparator, reversed);59  }60}61package org.assertj.core.api;62import java.util.Comparator;63import org.assertj.core.internal.ComparatorBasedComparisonStrategy

compare

Using AI Code Generation

1import org.assertj.core.api.ComparatorFactory;2import java.util.Comparator;3class Student {4    int id;5    String name;6    String address;7    public Student(int id, String name, String address) {8        this.id = id;9        this.name = name;10        this.address = address;11    }12    public int getId() {13        return id;14    }15    public String getName() {16        return name;17    }18    public String getAddress() {19        return address;20    }21}22public class AssertJComparator {23    public static void main(String[] args) {24        Student student1 = new Student(1, "John", "USA");25        Student student2 = new Student(1, "John", "USA");26        Comparator<Student> comparator = ComparatorFactory.comparator().onProperty(Student::getId).thenComparing(Student::getName).thenComparing(Student::getAddress);27        System.out.println(comparator.compare(student1, student2));28    }29}

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Using AI Code Generation

1import org.assertj.core.api.ComparatorFactory;2import org.assertj.core.api.Assertions;3import org.junit.Test;4public class 1 {5	public void test() {6		Assertions.assertThat("abc").usingComparator(ComparatorFactory.comparator()).isEqualTo("abc");7	}8}9	at org.junit.Assert.assertEquals(Assert.java:115)10	at org.junit.Assert.assertEquals(Assert.java:144)11	at 1.test(1.java:10)

compare

Using AI Code Generation

1public class Compare {2    public static void main(String[] args) {3        int i = 10;4        int j = 20;5        assertThat(i).usingComparator(ComparatorFactory.<Integer>compare()).isLessThan(j);6    }7}8public class Compare {9    public static void main(String[] args) {10        int i = 10;11        int j = 20;12        assertThat(i).usingComparator(Assertions.<Integer>compare()).isLessThan(j);13    }14}15public class Compare {16    public static void main(String[] args) {17        int i = 10;18        int j = 20;19        assertThat(i).usingComparator(Assertions.<Integer>compare()).isLessThan(j);20    }21}22public class Compare {23    public static void main(String[] args) {24        int i = 10;25        int j = 20;26        assertThat(i).usingComparator(Assertions.<Integer>compare()).isLessThan(j);27    }28}29public class Compare {30    public static void main(String[] args) {31        int i = 10;32        int j = 20;33        assertThat(i).usingComparator(Assertions.<Integer>compare()).isLessThan(j);34    }35}36public class Compare {37    public static void main(String[] args) {38        int i = 10;39        int j = 20;40        assertThat(i).usingComparator(Assertions.<Integer>compare()).isLessThan(j);41    }42}

compare

Using AI Code Generation

1import java.util.Comparator;2import org.assertj.core.api.ComparatorFactory;3import org.assertj.core.api.ComparisonStrategy;4import org.assertj.core.api.DefaultComparator;5import org.assertj.core.api.ObjectAssert;6public class ComparatorFactoryDemo {7   public static void main(String[] args) {8      ObjectAssert object1 = new ObjectAssert("AssertJ");9      ObjectAssert object2 = new ObjectAssert("AssertJ");10      Comparator comparator1 = new DefaultComparator();11      Comparator comparator2 = new DefaultComparator();12      ComparisonStrategy comparisonStrategy1 = new ComparisonStrategy();13      ComparisonStrategy comparisonStrategy2 = new ComparisonStrategy();14      ComparatorFactory comparatorFactory1 = new ComparatorFactory();15      ComparatorFactory comparatorFactory2 = new ComparatorFactory();16      comparatorFactory1.compare(object1, object2);17      comparatorFactory2.compare(comparator1, comparator2);18      comparatorFactory1.compare(comparisonStrategy1, comparisonStrategy2);19   }20}

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Using AI Code Generation

1import org.assertj.core.api.ComparatorFactory;2import org.assertj.core.api.ComparableAssert;3import org.assertj.core.api.ComparableAssertBaseTest;4import org.assertj.core.api.Condition;5import org.assertj.core.api.TestCondition;6import org.assertj.core.description.TextDescription;7import org.assertj.core.internal.ComparatorBasedComparisonStrategy;8import org.assertj.core.internal.Comparables;9import org.assertj.core.internal.Comparators;10import org.assertj.core.internal.Failures;11import org.assertj.core.internal.Objects;12import org.assertj.core.util.AbsValueComparator;13import java.util.Comparator;14import java.util.function.BiPredicate;15import static org.assertj.core.api.Assertions.assertThat;16import static org.assertj.core.api.Assertions.assertThatExceptionOfType;17import static org.assertj.core.api.Assertions.assertThatNullPointerException;18import static org.assertj.core.api.Assertions.not;19import static org.assertj.core.api.Assertions.within;20import static org.assertj.core.api.BDDAssertions.then;21import static org.assertj.core.error.ShouldBeEqual.shouldBeEqual;22import static org.assertj.core.error.ShouldBeEqualWithinOffset.shouldBeEqual;23import static org.assertj.core.error.ShouldBeGreaterThan.shouldBeGreaterThan;24import static org.assertj.core.error.ShouldBeGreaterThanOrEqualTo.shouldBeGreaterThanOrEqualTo;25import static org.assertj.core.error.ShouldBeLessThan.shouldBeLessThan;26import static org.assertj.core.error.ShouldBeLessThanOrEqualTo.shouldBeLessThanOrEqualTo;27import static org.assertj.core.error.ShouldBeNegative.shouldBeNegative;28import static org.assertj.core.error.ShouldBeNotEqual.shouldBeNotEqual;29import static org.assertj.core.error.ShouldBeNotEqualByComparingTo.shouldBeEqual;30import static org.assertj.core.error.ShouldBePositive.shouldBePositive;31import static org.assertj.core.error.ShouldHaveValue.shouldHaveValue;32import static org.assertj.core.error.ShouldNotBeNull.shouldNotBeNull;33import static org.assertj.core.error.ShouldSatisfy.shouldSatisfy;34import static org.assertj.core.util.AssertionsUtil.expectAssertionError;35import static org.assertj.core.util.FailureMessages.actualIsNull;36import static org.assertj.core.util.Lists.newArrayList;37import static org.mockito.Mockito.verify;38import static org.mockito.Mockito.verifyNoMoreInteractions;39import static org.mockito.Mockito.when;40import org.assertj.core.api.AbstractComparableAssert;41import org.assertj.core.api.AbstractIntegerAssert;42import org.assertj.core.api.AbstractObjectAssert;43import org.assertj.core.api.AbstractStringAssert;44import org.assertj.core.api.Assertions;45import org.assertj.core.api.Condition;46import org.assertj.core.api.IntegerAssert;47import org.assertj.core.api.ObjectAssert;48import org.assertj.core.api.StringAssert;49import org.assertj.core.api.ThrowableAssert

compare

Using AI Code Generation

1import java.util.Comparator;2import org.assertj.core.api.Assertions;3import org.assertj.core.api.ComparatorFactory;4public class CompareMethod {5public static void main(String[] args) {6Comparator<String> comparator = ComparatorFactory.comparable();7Assertions.assertThat("b").usingComparator(comparator).isGreaterThan("a");8Assertions.assertThat("a").usingComparator(comparator).isLessThan("b");9Assertions.assertThat("a").usingComparator(comparator).isGreaterThanOrEqualTo("a");10Assertions.assertThat("b").usingComparator(comparator).isLessThanOrEqualTo("b");11Assertions.assertThat("a").usingComparator(comparator).isGreaterThan("b");12Assertions.assertThat("b").usingComparator(comparator).isLessThan("a");13Assertions.assertThat("a").usingComparator(comparator).isGreaterThanOrEqualTo("b");14Assertions.assertThat("b").usingComparator(comparator).isLessThanOrEqualTo("a");15}16}

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Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.ComparatorFactory.byLessThan;3import java.util.Date;4import org.junit.Test;5public class DateAssertJTest {6    public void testDateCompare() {7        Date date1 = new Date(2018, 12, 31);8        Date date2 = new Date(2019, 01, 01);9        assertThat(date1).usingComparator(byLessThan()).isLessThan(date2);10    }11}12import static org.assertj.core.api.Assertions.assertThat;13import static org.assertj.core.api.ComparatorFactory.byComparator;14import java.util.Date;15import java.util.Comparator;16import org.junit.Test;17public class DateAssertJTest {18    public void testDateCompare() {19        Date date1 = new Date(2018, 12, 31);20        Date date2 = new Date(2019, 01, 01);21        assertThat(date1).usingComparator(byComparator(new Comparator<Date>() {22            public int compare(Date o1, Date o2) {23                return o1.compareTo(o2);24            }25        })).isLessThan(date2);26    }27}

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