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

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

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...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 }...

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1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.Assertions.within;3import static org.assertj.core.api.ComparatorFactory.toStringComparator;4import static org.assertj.core.api.ComparatorFactory.toStringComparatorIgnoringCase;5import static org.assertj.core.api.ComparatorFactory.toStringComparatorIgnoringCaseAndAccents;6import static org.assertj.core.api.ComparatorFactory.toStringComparatorIgnoringAccents;7import org.junit.jupiter.api.Test;8import java.util.Comparator;9import java.util.List;10import static java.util.Arrays.asList;11public class ComparatorFactoryTest {12 void should_use_comparator_factory_to_compare_strings() {13 List<String> names = asList("Bob", "Alice", "John");14 assertThat(names).isSortedAccordingTo(toStringComparator());15 assertThat(names).isSortedAccordingTo(toStringComparatorIgnoringCase());16 assertThat(names).isSortedAccordingTo(toStringComparatorIgnoringAccents());17 assertThat(names).isSortedAccordingTo(toStringComparatorIgnoringCaseAndAccents());18 }19 void should_use_comparator_factory_to_compare_numbers() {20 List<Integer> numbers = asList(1, 2, 3);21 assertThat(numbers).isSortedAccordingTo(Comparator.naturalOrder());22 assertThat(numbers).isSortedAccordingTo(Comparator.<Integer>reverseOrder());23 }24 void should_use_comparator_factory_to_compare_objects() {25 List<Person> people = asList(new Person("Bob"), new Person("Alice"), new Person("John"));26 assertThat(people).isSortedAccordingTo(toStringComparator());27 assertThat(people).isSortedAccordingTo(toStringComparatorIgnoringCase());28 assertThat(people).isSortedAccordingTo(toStringComparatorIgnoringAccents());29 assertThat(people).isSortedAccordingTo(toStringComparatorIgnoringCaseAndAccents());30 }31 void should_use_comparator_factory_to_compare_objects_with_custom_comparator() {32 List<Person> people = asList(new Person("Bob"), new Person("Alice"), new Person("John"));33 assertThat(people).isSortedAccordingTo(Comparator.comparing(Person::getName));34 assertThat(people).isSortedAccordingTo(Comparator.comparing(Person::getName, String.CASE_INSENSITIVE_ORDER));35 assertThat(people).isSortedAccordingTo(Comparator.comparing(Person::getName,

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1import static org.assertj.core.api.Assertions.*;2import static org.assertj.core.api.ComparatorFactory.*;3import static org.assertj.core.util.DateUtil.*;4import java.util.Comparator;5import java.util.Date;6import org.junit.Test;7public class ComparatorFactoryTest {8 public void test() {9 Comparator<Date> dateComparator = comparatorByComparing(Date::getTime);10 assertThat(dateComparator.compare(parseDatetime("2014-01-01"), parseDatetime("2014-01-02"))).isNegative();11 assertThat(dateComparator.compare(parseDatetime("2014-01-02"), parseDatetime("2014-01-01"))).isPositive();12 assertThat(dateComparator.compare(parseDatetime("2014-01-01"), parseDatetime("2014-01-01"))).isZero();13 }14}15 at org.junit.Assert.assertEquals(Assert.java:115)16 at org.junit.Assert.assertEquals(Assert.java:144)17 at org.assertj.core.api.ComparatorFactoryTest.test(ComparatorFactoryTest.java:22)

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1import org.assertj.core.api.ComparatorFactory;2import java.util.Comparator;3public class ComparatorFactoryToString {4 public static void main(String[] args) {5 Comparator<String> comparator = ComparatorFactory.toStringComparator();6 }7}8Java | Comparator.comparing() method9Java | Comparator.thenComparing() method10Java | Comparator.thenComparingInt() method11Java | Comparator.thenComparingLong() method12Java | Comparator.thenComparingDouble() method13Java | Comparator.reversed() method14Java | Comparator.nullsFirst() method15Java | Comparator.nullsLast() method16Java | Comparator.naturalOrder() method17Java | Comparator.reverseOrder() method18Java | Comparator.comparingInt() method19Java | Comparator.comparingLong() method20Java | Comparator.comparingDouble() method21Java | Comparator.comparing() method22Java | Comparator.thenComparing() method23Java | Comparator.thenComparingInt() method24Java | Comparator.thenComparingLong() method25Java | Comparator.thenComparingDouble() method26Java | Comparator.reversed() method27Java | Comparator.nullsFirst() method28Java | Comparator.nullsLast() method29Java | Comparator.naturalOrder() method30Java | Comparator.reverseOrder() method31Java | Comparator.comparingInt() method32Java | Comparator.comparingLong() method33Java | Comparator.comparingDouble() method34Java | Comparator.comparing() method35Java | Comparator.thenComparing() method36Java | Comparator.thenComparingInt() method37Java | Comparator.thenComparingLong() method38Java | Comparator.thenComparingDouble() method39Java | Comparator.reversed() method40Java | Comparator.nullsFirst() method41Java | Comparator.nullsLast() method42Java | Comparator.naturalOrder() method

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1assertThat(actual).usingComparatorForType(comparator, String.class).isEqualTo(expected);2assertThat(actual).usingComparatorForType(comparator, String.class).isNotEqualTo(expected);3assertThat(actual).usingComparatorForType(comparator, String.class).isIn(expected1, expected2);4assertThat(actual).usingComparatorForType(comparator, String.class).isNotIn(expected1, expected2);5assertThat(actual).usingComparatorForType(comparator, String.class).isIn(expected1, expected2);6assertThat(actual).usingComparatorForType(comparator, String.class).isNotIn(expected1, expected2);7assertThat(actual).usingComparatorForType(comparator, String.class).isIn(expected1, expected2);8assertThat(actual).usingComparatorForType(comparator, String.class).isNotIn(expected1, expected2);9assertThat(actual).usingComparatorForType(comparator, String.class).isIn(expected1, expected2);10assertThat(actual).usingComparatorForType(comparator, String.class).isNotIn(expected1, expected2);11assertThat(actual).usingComparatorForType(comparator, String.class).isIn(expected1, expected2);12assertThat(actual).usingComparatorForType(comparator, String.class).isNotIn(expected1, expected2);13assertThat(actual).usingComparatorForType(comparator, String.class).isIn(expected1, expected2);14assertThat(actual).usingComparatorForType(comparator, String.class).isNotIn(expected1,

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1import org.assertj.core.api.ComparatorFactory;2import org.assertj.core.api.Comparators;3public class ComparatorFactoryToString {4 public static void main(String[] args) {5 ComparatorFactory<String> comparatorFactory = Comparators.comparatorForType(String.class);6 System.out.println(comparatorFactory.toString());7 }8}

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1 import static org.assertj.core.api.Assertions.assertThat;2 import static org.assertj.core.api.ComparatorFactory.toStringComparator;3 import static org.assertj.core.api.ComparatorFactory.byLessThan;4 import static org.assertj.core.api.ComparatorFactory.byGreaterThanOrEqual;5 import static org.assertj.core.api.ComparatorFactory.byComparator;6 import java.util.Comparator;7 import org.testng.annotations.Test;8 public class ComparatorFactoryTest {9 public void testToStringComparator() {10 Comparator<Object> comparator = toStringComparator();11 assertThat("a").usingComparator(comparator).isLessThan("b");12 assertThat("a").usingComparator(comparator).isGreaterThan("A");13 }14 public void testByLessThan() {15 Comparator<Object> comparator = byLessThan();16 assertThat("a").usingComparator(comparator).isLessThan("b");17 assertThat("a").usingComparator(comparator).isGreaterThan("A");18 }19 public void testByGreaterThanOrEqual() {20 Comparator<Object> comparator = byGreaterThanOrEqual();21 assertThat("a").usingComparator(comparator).isLessThan("b");22 assertThat("a").usingComparator(comparator).isGreaterThan("A");23 }24 public void testByComparator() {25 Comparator<Object> comparator = byComparator(new Comparator<Object>() {26 public int compare(Object o1, Object o2) {27 return o1.toString().compareTo(o2.toString());28 }29 });30 assertThat("a").usingComparator(comparator).isLessThan("b");31 assertThat("a").usingComparator(comparator).isGreaterThan("A");32 }33 }

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1import static org.assertj.core.api.BDDAssertions.then;2import static org.assertj.core.api.ComparatorFactory.toString;3import java.util.Comparator;4import org.junit.jupiter.api.Test;5public class ComparatorFactoryTest {6 public void testToString() {7 Comparator<String> comparator = (s1, s2) -> s1.compareTo(s2);8 then(toString(comparator)).isEqualTo("comparator on java.lang.String comparing by compareTo method");9 }10}11Example 2: [junit5] AssertJ: ComparatorFactory::toString(Comparator) with String::compareToIgnoreCase method[]: # Language: markdown12import static org.assertj.core.api.BDDAssertions.then;13import static org.assertj.core.api.ComparatorFactory.toString;14import java.util.Comparator;15import org.junit.jupiter.api.Test;16public class ComparatorFactoryTest {17 public void testToString() {18 Comparator<String> comparator = (s1, s2) -> s1.compareToIgnoreCase(s2);19 then(toString(comparator)).isEqualTo("comparator on java.lang.String comparing by compareToIgnoreCase method");20 }21}22Example 3: [junit5] AssertJ: ComparatorFactory::toString(Comparator) with String::compareTo method[]: # Language: markdown23import static org.assertj.core.api.BDDAssertions.then;24import static org.assertj.core.api.ComparatorFactory.toString;25import java.util.Comparator;26import org.junit.jupiter.api.Test;27public class ComparatorFactoryTest {28 public void testToString() {29 Comparator<String> comparator = (s1, s2) -> s1.compareTo(s2);30 then(toString(comparator)).isEqualTo("comparator on java.lang.String comparing by compareTo method");31 }32}33Example 4: [junit5] AssertJ: ComparatorFactory::toString(Comparator) with String::compareToIgnoreCase method[]: # Language: markdown

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1import org.assertj.core.api.ComparatorFactory;2import java.util.Comparator;3public class ComparatorFactoryToStringExample {4 public static void main(String[] args) {5 Comparator<Object> comparator = ComparatorFactory.toStringComparator();6 System.out.println("comparator.compare(\"a\", \"a\") = " + comparator.compare("a", "a"));7 System.out.println("comparator.compare(\"a\", \"b\") = " + comparator.compare("a", "b"));8 System.out.println("comparator.compare(\"b\", \"a\") = " + comparator.compare("b", "a"));9 }10}11comparator.compare("a", "a") = 012comparator.compare("a", "b") = -113comparator.compare("b", "a") = 1

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