补充单元测试

src/test/java/xyz/zhouxy/plusone/commons/util/NumbersTests.java

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+/*
+ * Copyright 2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package xyz.zhouxy.plusone.commons.util;
+
+import org.junit.jupiter.api.Test;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public
+class NumbersTests {
+
+    // TODO 【优化】 检查测试用例
+
+    @Test
+    public void sum_ShortArray_ReturnsCorrectSum() {
+        short[] numbers = {1, 2, 3, 4};
+        int result = Numbers.sum(numbers);
+        assertEquals(10, result);
+    }
+
+    @Test
+    public void sum_IntArray_ReturnsCorrectSum() {
+        int[] numbers = {1, 2, 3, 4};
+        long result = Numbers.sum(numbers);
+        assertEquals(10L, result);
+    }
+
+    @Test
+    public void sum_LongArray_ReturnsCorrectSum() {
+        long[] numbers = {1, 2, 3, 4};
+        long result = Numbers.sum(numbers);
+        assertEquals(10L, result);
+    }
+
+    @Test
+    public void sum_FloatArray_ReturnsCorrectSum() {
+        float[] numbers = {1.5f, 2.5f, 3.5f};
+        double result = Numbers.sum(numbers);
+        assertEquals(7.5, result);
+    }
+
+    @Test
+    public void sum_DoubleArray_ReturnsCorrectSum() {
+        double[] numbers = {1.5, 2.5, 3.5};
+        double result = Numbers.sum(numbers);
+        assertEquals(7.5, result);
+    }
+
+    @Test
+    public void sum_BigIntegerArray_ReturnsCorrectSum() {
+        BigInteger[] numbers = {new BigInteger("1"), new BigInteger("2"), new BigInteger("3")};
+        BigInteger result = Numbers.sum(numbers);
+        assertEquals(new BigInteger("6"), result);
+    }
+
+    @Test
+    public void sum_BigDecimalArray_ReturnsCorrectSum() {
+        BigDecimal[] numbers = {new BigDecimal("1.5"), new BigDecimal("2.5"), new BigDecimal("3.5")};
+        BigDecimal result = Numbers.sum(numbers);
+        assertEquals(new BigDecimal("7.5"), result);
+    }
+
+    @Test
+    public void nullToZero_ByteNotNull_ReturnsSameValue() {
+        Byte value = 5;
+        byte result = Numbers.nullToZero(value);
+        assertEquals(5, result);
+    }
+
+    @Test
+    public void nullToZero_ByteNull_ReturnsZero() {
+        Byte value = null;
+        byte result = Numbers.nullToZero(value);
+        assertEquals(0, result);
+    }
+
+    @Test
+    public void nullToZero_ShortNotNull_ReturnsSameValue() {
+        Short value = 5;
+        short result = Numbers.nullToZero(value);
+        assertEquals(5, result);
+    }
+
+    @Test
+    public void nullToZero_ShortNull_ReturnsZero() {
+        Short value = null;
+        short result = Numbers.nullToZero(value);
+        assertEquals(0, result);
+    }
+
+    @Test
+    public void nullToZero_IntegerNotNull_ReturnsSameValue() {
+        Integer value = 5;
+        int result = Numbers.nullToZero(value);
+        assertEquals(5, result);
+    }
+
+    @Test
+    public void nullToZero_IntegerNull_ReturnsZero() {
+        Integer value = null;
+        int result = Numbers.nullToZero(value);
+        assertEquals(0, result);
+    }
+
+    @Test
+    public void nullToZero_LongNotNull_ReturnsSameValue() {
+        Long value = 5L;
+        long result = Numbers.nullToZero(value);
+        assertEquals(5L, result);
+    }
+
+    @Test
+    public void nullToZero_LongNull_ReturnsZero() {
+        Long value = null;
+        long result = Numbers.nullToZero(value);
+        assertEquals(0L, result);
+    }
+
+    @Test
+    public void nullToZero_FloatNotNull_ReturnsSameValue() {
+        Float value = 5.0F;
+        float result = Numbers.nullToZero(value);
+        assertEquals(5.0F, result);
+    }
+
+    @Test
+    public void nullToZero_FloatNull_ReturnsZero() {
+        Float value = null;
+        float result = Numbers.nullToZero(value);
+        assertEquals(0.0F, result);
+    }
+
+    @Test
+    public void nullToZero_DoubleNotNull_ReturnsSameValue() {
+        Double value = 5.0;
+        double result = Numbers.nullToZero(value);
+        assertEquals(5.0, result);
+    }
+
+    @Test
+    public void nullToZero_DoubleNull_ReturnsZero() {
+        Double value = null;
+        double result = Numbers.nullToZero(value);
+        assertEquals(0.0, result);
+    }
+
+    @Test
+    public void nullToZero_BigIntegerNotNull_ReturnsSameValue() {
+        BigInteger value = new BigInteger("5");
+        BigInteger result = Numbers.nullToZero(value);
+        assertEquals(new BigInteger("5"), result);
+    }
+
+    @Test
+    public void nullToZero_BigIntegerNull_ReturnsZero() {
+        BigInteger value = null;
+        BigInteger result = Numbers.nullToZero(value);
+        assertEquals(BigInteger.ZERO, result);
+    }
+
+    @Test
+    public void nullToZero_BigDecimalNotNull_ReturnsSameValue() {
+        BigDecimal value = new BigDecimal("5.0");
+        BigDecimal result = Numbers.nullToZero(value);
+        assertEquals(new BigDecimal("5.0"), result);
+    }
+
+    @Test
+    public void nullToZero_BigDecimalNull_ReturnsZero() {
+        BigDecimal value = null;
+        BigDecimal result = Numbers.nullToZero(value);
+        assertEquals(BigDecimal.ZERO, result);
+    }
+}