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Update unit tests for rotate array number #25

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Update unit tests for rotate array number #25

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34 changes: 34 additions & 0 deletions test/com/leetcode/arrays/RotateArrayTest.java
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Original file line number Diff line number Diff line change
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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);
}
}