add test

hutool-core/src/test/java/org/dromara/hutool/core/math/FractionTest.java

@@ -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);
+	}
+}