Update ArrayUtilTest.java

group26/1515345281/src/week2/arrayutil/ArrayUtilTest.java

@@ -1 +1,97 @@
 
+package week2.test;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+import week2.arrayutil.ArrayUtil;
+
+public class ArrayUtilTest {
+
+	private ArrayUtil arrayUtil=new ArrayUtil();
+
+	@Test
+	public void testReverseArray(){
+
+		int[] origin={1,2,3,4};
+		arrayUtil.reverseArray(origin);
+		assertArrayEquals(new int[]{4,3,2,1}, origin);
+
+		int[] origin1={5,6,7};
+		arrayUtil.reverseArray(origin1);
+		assertArrayEquals(new int[]{7,6,5},origin1);		
+	}
+
+	@Test
+	public void testRemoveArray(){
+
+		int[] oldArray={0,0,1,2,0,0,3,4,0,0};
+		int[] result=arrayUtil.removeZero(oldArray);
+		assertArrayEquals(new int[]{1,2,3,4},result);
+	}
+
+	@Test
+	public void testMerge(){
+		int[] array1={3,5,7,8};
+		int[] array2={4,5,6,7};
+		int[] array=arrayUtil.merge(array1, array2);
+		assertArrayEquals(new int[]{3,4,5,6,7,8}, array);
+	}
+
+	@Test
+	public void testGrow(){
+		int[] oldArray={2,3,6};
+		int size=3;
+		int[] newArray=new int[oldArray.length+size];
+		newArray=arrayUtil.grow(oldArray, size);
+		assertArrayEquals(new int[]{2,3,6,0,0,0},newArray);
+	}
+
+	@Test
+	public void testFibonacci(){
+		int max=1;
+		int[] result=arrayUtil.fibonacci(max);
+		assertArrayEquals(new int[0],result);
+
+		max=2;
+		int[] result1=arrayUtil.fibonacci(max);
+		assertEquals(1,result1[0]);		
+
+		max=15;
+		int[] result2=arrayUtil.fibonacci(max);
+		assertArrayEquals(new int[]{1,1,2,3,5,8,13},result2);		
+	}
+
+	@Test
+	public void testGetPrime(){
+		int max=-1;
+		int[] result=arrayUtil.getPrimes(max);
+		assertEquals(new int[0],result);
+
+		max=23;
+		result=arrayUtil.getPrimes(max);
+		assertEquals(new int[]{2,3,5,7,11,13,17,19},result);	
+
+	}
+
+	@Test
+	public void testGetPerfectNumbers(){
+		int max=7;
+		int[] result=arrayUtil.getPerfectNumbers(max);
+		assertArrayEquals(new int[]{6},result);
+
+		max=100;
+		result=arrayUtil.getPerfectNumbers(max);
+		assertArrayEquals(new int[]{6,28},result);
+	}
+
+	@Test
+	public void testJoin(){
+		String seperator="-";
+		int[] array={3,5,8};
+		String result=arrayUtil.join(array, seperator);
+		assertEquals("3-5-8",result);
+
+ 	}
+}