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add test

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This commit is contained in:
Looly 2025-01-17 19:49:46 +08:00
parent 62a2c78e7b
commit 1285f94cb0
2 changed files with 45 additions and 2 deletions
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5
hutool-core/src/main/java/org/dromara/hutool/core/math/Fraction.java
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@ -58,6 +58,7 @@ public final class Fraction extends Number implements Comparable<Fraction> {
* @throws ArithmeticException 如果计算出的分母为 {@code zero} * @throws ArithmeticException 如果计算出的分母为 {@code zero}
* @throws ArithmeticException 如果算法不收敛 * @throws ArithmeticException 如果算法不收敛
*/ */
@SuppressWarnings("ReassignedVariable")
public static Fraction of(double value) { public static Fraction of(double value) {
final int sign = value < 0 ? -1 : 1; final int sign = value < 0 ? -1 : 1;
value = Math.abs(value); value = Math.abs(value);
@ -103,7 +104,7 @@ public final class Fraction extends Number implements Comparable<Fraction> {
if (i == 25) { if (i == 25) {
throw new ArithmeticException("Unable to convert double to fraction"); throw new ArithmeticException("Unable to convert double to fraction");
} }
return getReducedFraction((numer0 + wholeNumber * denom0) * sign, denom0); return ofReduced((numer0 + wholeNumber * denom0) * sign, denom0);
} }
/** /**
@ -282,7 +283,7 @@ public final class Fraction extends Number implements Comparable<Fraction> {
* @param numerator 分子，例如在“七分之三”中的三 * @param numerator 分子，例如在“七分之三”中的三
* @param denominator 分母，例如在“七分之三”中的七 * @param denominator 分母，例如在“七分之三”中的七
*/ */
private Fraction(final int numerator, final int denominator) { public Fraction(final int numerator, final int denominator) {
this.numerator = numerator; this.numerator = numerator;
this.denominator = denominator; this.denominator = denominator;
} }

42
hutool-core/src/test/java/org/dromara/hutool/core/math/FractionTest.java Normal file
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@ -0,0 +1,42 @@
package org.dromara.hutool.core.math;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
public class FractionTest {
private Fraction fraction1;
private Fraction fraction2;
@BeforeEach
public void setUp() {
// 假设 Fraction 类有一个构造函数 Fraction(int numerator, int denominator)
fraction1 = new Fraction(1, 2);
fraction2 = new Fraction(3, 4);
}
@Test
public void add_Fractions_ShouldReturnCorrectSum() {
final Fraction result = fraction1.add(fraction2);
assertEquals(new Fraction(5, 4), result);
}
@Test
public void subtract_Fractions_ShouldReturnCorrectDifference() {
final Fraction result = fraction1.subtract(fraction2);
assertEquals(new Fraction(-1, 4), result);
}
@Test
public void equals_Fractions_ShouldReturnTrueForEqualFractions() {
final Fraction fraction3 = new Fraction(1, 2);
assertEquals(fraction1, fraction3);
}
@Test
public void equals_Fractions_ShouldReturnFalseForDifferentFractions() {
assertNotEquals(fraction1, fraction2);
}
}