How to use NearlyEqualsTest class of org.assertj.core.util package

Best Assertj code snippet using org.assertj.core.util.NearlyEqualsTest

Source:NearlyEqualsTest.java Github

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...14import org.junit.Assert;15import org.junit.jupiter.api.Disabled;16import org.junit.jupiter.api.Test;17@Disabled18public class NearlyEqualsTest {19 /**20 * Regular large numbers - generally not problematic21 */22 @Test23 public void big() {24 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(1000000.0F, 1000001.0F));25 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(1000001.0F, 1000000.0F));26 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(10000.0F, 10001.0F));27 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(10001.0F, 10000.0F));28 }29 /**30 * Negative large numbers31 */32 @Test33 public void bigNeg() {34 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-1000000.0F), (-1000001.0F)));35 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-1000001.0F), (-1000000.0F)));36 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-10000.0F), (-10001.0F)));37 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-10001.0F), (-10000.0F)));38 }39 /**40 * Numbers around 141 */42 @Test43 public void mid() {44 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(1.0000001F, 1.0000002F));45 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(1.0000002F, 1.0000001F));46 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0002F, 1.0001F));47 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0001F, 1.0002F));48 }49 /**50 * Numbers around -151 */52 @Test53 public void midNeg() {54 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-1.000001F), (-1.000002F)));55 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-1.000002F), (-1.000001F)));56 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.0001F), (-1.0002F)));57 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.0002F), (-1.0001F)));58 }59 /**60 * Numbers between 1 and 061 */62 @Test63 public void small() {64 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(1.000001E-9F, 1.000002E-9F));65 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(1.000002E-9F, 1.000001E-9F));66 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.002E-12F, 1.001E-12F));67 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.001E-12F, 1.002E-12F));68 }69 /**70 * Numbers between -1 and 071 */72 @Test73 public void smallNeg() {74 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-1.000001E-9F), (-1.000002E-9F)));75 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-1.000002E-9F), (-1.000001E-9F)));76 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.002E-12F), (-1.001E-12F)));77 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.001E-12F), (-1.002E-12F)));78 }79 /**80 * Comparisons involving zero81 */82 @Test83 public void zero() {84 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(0.0F, 0.0F));85 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(0.0F, (-0.0F)));86 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-0.0F), (-0.0F)));87 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0E-8F, 0.0F));88 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(0.0F, 1.0E-8F));89 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.0E-8F), 0.0F));90 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(0.0F, (-1.0E-8F)));91 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(0.0F, 1.0E-40F, 0.01F));92 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(1.0E-40F, 0.0F, 0.01F));93 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0E-40F, 0.0F, 1.0E-6F));94 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(0.0F, 1.0E-40F, 1.0E-6F));95 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(0.0F, (-1.0E-40F), 0.1F));96 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-1.0E-40F), 0.0F, 0.1F));97 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.0E-40F), 0.0F, 1.0E-8F));98 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(0.0F, (-1.0E-40F), 1.0E-8F));99 }100 /**101 * Comparisons involving extreme values (overflow potential)102 */103 @Test104 public void extremeMax() {105 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(Float.MAX_VALUE, Float.MAX_VALUE));106 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.MAX_VALUE, (-(Float.MAX_VALUE))));107 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-(Float.MAX_VALUE)), Float.MAX_VALUE));108 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.MAX_VALUE, ((Float.MAX_VALUE) / 2)));109 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.MAX_VALUE, ((-(Float.MAX_VALUE)) / 2)));110 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-(Float.MAX_VALUE)), ((Float.MAX_VALUE) / 2)));111 }112 /**113 * Comparisons involving infinities114 */115 @Test116 public void infinities() {117 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY));118 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(Float.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY));119 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY));120 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.POSITIVE_INFINITY, Float.MAX_VALUE));121 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NEGATIVE_INFINITY, (-(Float.MAX_VALUE))));122 }123 /**124 * Comparisons involving NaN values125 */126 @Test127 public void nan() {128 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, Float.NaN));129 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, 0.0F));130 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-0.0F), Float.NaN));131 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, (-0.0F)));132 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(0.0F, Float.NaN));133 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, Float.POSITIVE_INFINITY));134 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.POSITIVE_INFINITY, Float.NaN));135 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, Float.NEGATIVE_INFINITY));136 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NEGATIVE_INFINITY, Float.NaN));137 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, Float.MAX_VALUE));138 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.MAX_VALUE, Float.NaN));139 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, (-(Float.MAX_VALUE))));140 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-(Float.MAX_VALUE)), Float.NaN));141 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, Float.MIN_VALUE));142 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.MIN_VALUE, Float.NaN));143 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.NaN, (-(Float.MIN_VALUE))));144 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-(Float.MIN_VALUE)), Float.NaN));145 }146 /**147 * Comparisons of numbers on opposite sides of 0148 */149 @Test150 public void opposite() {151 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0F, (-1.0F)));152 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.0F), 1.0F));153 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-1.0F), 1.0F));154 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0F, (-1.0F)));155 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((10 * (Float.MIN_VALUE)), (10 * (-(Float.MIN_VALUE)))));156 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((10000 * (Float.MIN_VALUE)), (10000 * (-(Float.MIN_VALUE)))));157 }158 /**159 * The really tricky part - comparisons of numbers very close to zero.160 */161 @Test162 public void ulp() {163 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(Float.MIN_VALUE, Float.MIN_VALUE));164 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(Float.MIN_VALUE, (-(Float.MIN_VALUE))));165 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-(Float.MIN_VALUE)), Float.MIN_VALUE));166 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(Float.MIN_VALUE, 0));167 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(0, Float.MIN_VALUE));168 Assert.assertTrue(NearlyEqualsTest.nearlyEqual((-(Float.MIN_VALUE)), 0));169 Assert.assertTrue(NearlyEqualsTest.nearlyEqual(0, (-(Float.MIN_VALUE))));170 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0E-9F, (-(Float.MIN_VALUE))));171 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(1.0E-9F, Float.MIN_VALUE));172 Assert.assertFalse(NearlyEqualsTest.nearlyEqual(Float.MIN_VALUE, 1.0E-9F));173 Assert.assertFalse(NearlyEqualsTest.nearlyEqual((-(Float.MIN_VALUE)), 1.0E-9F));174 }175}...

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NearlyEqualsTest

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1package org.assertj.core.util;2import static org.assertj.core.api.Assertions.assertThat;3import org.junit.jupiter.api.Test;4class NearlyEqualsTest {5 void should_return_true_if_doubles_are_nearly_equal() {6 assertThat(NearlyEquals.isNearlyEqual(1.0, 1.0000000000000001)).isTrue();7 }8 void should_return_false_if_doubles_are_not_nearly_equal() {9 assertThat(NearlyEquals.isNearlyEqual(1.0, 1.0000000000000002)).isFalse();10 }11}

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NearlyEqualsTest

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1import org.assertj.core.util.NearlyEqualsTest;2import static org.assertj.core.api.Assertions.assertThat;3public class NearlyEqualsTestExample {4 public void test() {5 assertThat(NearlyEqualsTest.nearlyEqual(1.0, 1.0)).isTrue();6 assertThat(NearlyEqualsTest.nearlyEqual(1.0, 1.0000000000000001)).isTrue();7 assertThat(NearlyEqualsTest.nearlyEqual(1.0, 1.0000000000000002)).isFalse();8 }9}10org.assertj.core.util.NearlyEqualsTestExample > test() PASSED

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NearlyEqualsTest

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1package org.assertj.core.util;2import org.assertj.core.api.AbstractAssert;3import org.assertj.core.api.AbstractObjectAssert;4import org.assertj.core.api.Assertions;5public class NearlyEqualsTest {6 public static void main(String[] args) {7 Assertions.assertThat(1.0).isNearlyEqualTo(1.0);8 Assertions.assertThat(1.0).isNearlyEqualTo(1.0, 0.1);9 Assertions.assertThat(1.0).isNearlyEqualTo(1.0, 0.1, 0.1);10 Assertions.assertThat(1.0).isNearlyEqualTo(1.0, 0.1, 0.1, 0.1);11 Assertions.assertThat(1.0).isNearlyEqualTo(1.0, 0.1, 0.1, 0.1, 0.1);12 Assertions.assertThat(1.0).isNearlyEqualTo(1.0, 0.1, 0.1, 0.1, 0.1, 0.1);13 Assertions.assertThat(1.0

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NearlyEqualsTest

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1import org.assertj.core.util.NearlyEqualsTest;2public class NearlyEqualsTestExample {3 public static void main(String[] args) {4 double a = 1.0;5 double b = 1.0000000000000005;6 double c = 1.0000000000000006;7 double d = 1.0000000000000007;8 double e = 1.0000000000000008;9 double f = 1.0000000000000009;10 NearlyEqualsTest nearlyEqualsTest = new NearlyEqualsTest();11 System.out.println("a == b => " + nearlyEqualsTest.areEqual(a, b));12 System.out.println("a == c => " + nearlyEqualsTest.areEqual(a, c));13 System.out.println("a == d => " + nearlyEqualsTest.areEqual(a, d));14 System.out.println("a == e => " + nearlyEqualsTest.areEqual(a, e));15 System.out.println("a == f => " + nearlyEqualsTest.areEqual(a, f));16 }17}

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NearlyEqualsTest

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1import org.assertj.core.util.NearlyEqualsTest;2public class Test {3 public static void main(String[] args) {4 boolean result = NearlyEqualsTest.nearlyEqual(1, 1.0000001, 0.0000001);5 System.out.println(result);6 }7}8Recommended Posts: Java | Difference between equals() and == operator in Java9Java | equals() and hashCode() methods in Java10Java | equals() and hashCode() method in Object class11Java | equals() method

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NearlyEqualsTest

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1public void testFloat() {2 float a = 0.1f;3 float b = 0.2f;4 float c = 0.3f;5 float d = 0.4f;6 float e = 0.5f;7 float f = 0.6f;8 float g = 0.7f;9 float h = 0.8f;10 float i = 0.9f;11 float j = 1.0f;12 float k = 1.1f;13 float l = 1.2f;14 float m = 1.3f;15 float n = 1.4f;16 float o = 1.5f;17 float p = 1.6f;18 float q = 1.7f;19 float r = 1.8f;20 float s = 1.9f;21 float t = 2.0f;22 float u = 2.1f;23 float v = 2.2f;24 float w = 2.3f;25 float x = 2.4f;26 float y = 2.5f;27 float z = 2.6f;28 float aa = 2.7f;29 float ab = 2.8f;30 float ac = 2.9f;31 float ad = 3.0f;32 float ae = 3.1f;33 float af = 3.2f;34 float ag = 3.3f;35 float ah = 3.4f;36 float ai = 3.5f;37 float aj = 3.6f;38 float ak = 3.7f;39 float al = 3.8f;40 float am = 3.9f;41 float an = 4.0f;42 float ao = 4.1f;43 float ap = 4.2f;44 float aq = 4.3f;45 float ar = 4.4f;46 float as = 4.5f;47 float at = 4.6f;48 float au = 4.7f;

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