package data_Structure_Utils;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class ArrayUtilTest {
private ArrayUtil au;
@Before
public void setUp(){
au = new ArrayUtil();
}
@Test
public void testReverseArray() {
int[] origin = {7, 9, 30, 3, 4};
int[] expecteds ={4, 3, 30, 9, 7};
au.reverseArray(origin);
int[] actuals = origin;
Assert.assertArrayEquals(expecteds, actuals);
}
@Test
public void testRemoveZero() {
int[] oldArray = {1,3,4,5,0,0,6,6,0,5,4,7,6,7,0,5};
int[] expecteds = {1,3,4,5,6,6,5,4,7,6,7,5};
int[] actuals = au.removeZero(oldArray);
Assert.assertArrayEquals(expecteds, actuals);
}
@Test
public void testMerge() {
int[] a1 = {3, 5, 7,8};
int[] a2 = {4, 5, 6,7};
int[] expecteds = {3,4,5,6,7,8};
int[] actuals = au.merge(a1, a2);
Assert.assertArrayEquals(expecteds, actuals);
}
@Test
public void testGrow() {
int[] oldArray = {2,3,6};
int size = 3;
int[] expecteds = {2,3,6,0,0,0};
int[] actuals = au.grow(oldArray, size);
Assert.assertArrayEquals(expecteds, actuals);
}
@Test
public void testFibonacci() {
int max = 1;
int[] expecteds = new int[0];
int[] actuals = au.fibonacci(max);
Assert.assertArrayEquals(expecteds, actuals);
}
@Test
public void testGetPrimes() {
int max = 23;
int[] expecteds = {2,3,5,7,11,13,17,19};
int[] actuals = au.getPrimes(max);
Assert.assertArrayEquals(expecteds, actuals);
}
@Test
public void testGetPerfectNumbers() {
int max = 30;
int[] expecteds = {6, 28};
int[] actuals = au.getPerfectNumbers(max);
Assert.assertArrayEquals(expecteds, actuals);
max = 2;
expecteds = new int[0];
actuals = au.getPerfectNumbers(max);
Assert.assertArrayEquals(expecteds, actuals);
}
@Test
public void testJoin() {
int[] array = {3, 8, 9};
String seperator = "-";
String expecteds = "3-8-9";
String actuals = au.join(array, seperator);
Assert.assertEquals(expecteds, actuals);
}
}