Jun 16, 2022
diff --git a/test/com/leetcode/arrays/RotateArrayTest.java b/test/com/leetcode/arrays/RotateArrayTest.java
 package com.leetcode.arrays;
 import org.junit.Test;
 import static org.junit.Assert.assertArrayEquals;

 public class RotateArrayTest {

    @Test
    public void testRotateArray_whenRotateThreeStep() {
        // Given
        RotateArray rotateArray = new RotateArray();
        int[] arr = {1, 2, 3, 4, 5, 6, 7};
        int[] exepctedArr = {5, 6, 7, 1, 2, 3, 4};

        // When
        rotateArray.rotate(arr, 3);

        // Then
        assertArrayEquals(arr, exepctedArr);
    }

    @Test
    public void testRotateArray_whenRotateFourStepAndArrayHasOnlyOneElement() {
        // Given
        RotateArray rotateArray = new RotateArray();
        int[] arr = {1};
        int[] exepctedArr = {1};

        // When
        rotateArray.rotate(arr, 4);

        // Then
        assertArrayEquals(arr, exepctedArr);
    }
 }
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,34 @@
		package com.leetcode.arrays;
		import org.junit.Test;
		import static org.junit.Assert.assertArrayEquals;

		public class RotateArrayTest {

		@Test
		public void testRotateArray_whenRotateThreeStep() {
		// Given
		RotateArray rotateArray = new RotateArray();
		int[] arr = {1, 2, 3, 4, 5, 6, 7};
		int[] exepctedArr = {5, 6, 7, 1, 2, 3, 4};

		// When
		rotateArray.rotate(arr, 3);

		// Then
		assertArrayEquals(arr, exepctedArr);
		}

		@Test
		public void testRotateArray_whenRotateFourStepAndArrayHasOnlyOneElement() {
		// Given
		RotateArray rotateArray = new RotateArray();
		int[] arr = {1};
		int[] exepctedArr = {1};

		// When
		rotateArray.rotate(arr, 4);

		// Then
		assertArrayEquals(arr, exepctedArr);
		}
		}