import algorithms.SumArray; import org.testng.Assert; import org.testng.annotations.Test; public class SumArrayTest { @Test public void testSumArray_PositiveValues_HappyPath() { int[] array = {0, 1, 2, 3, 4, 5}; int expectedResult = 15; int actualResult = new SumArray().sumArray(array); Assert.assertEquals(actualResult, expectedResult); } @Test public void testSumArray_NegativeValues_HappyPath() { int[] array = {-7, -3}; int expectedResult = -10; int actualResult = new SumArray().sumArray(array); Assert.assertEquals(actualResult, expectedResult); } @Test public void testSumArray_EmptyArray_Negative() { int[] array = {}; // or int[] array = new int[0]; int expectedResult = 0; int actualResult = new SumArray().sumArray(array); Assert.assertEquals(actualResult, expectedResult); } /* Cannot read the array length because "array" is null @Test public void testSumArray_Null_Negative() { int[] array = null; int expectedResult = 0; int actualResult = new SumArray().sumArray(array); Assert.assertEquals(actualResult, expectedResult); } */ }