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Updated ArrayCopy assert statements. (#1540)

This commit is contained in:
azrairshad 2017-03-31 10:54:12 -07:00 committed by Zeger Hendrikse
parent 0975123b83
commit 4c84fabd1a
1 changed files with 23 additions and 42 deletions
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65
core-java/src/test/java/com/baeldung/arraycopy/ArrayCopyUtilTest.java
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@ -15,14 +15,18 @@ public class ArrayCopyUtilTest {
@BeforeClass @BeforeClass
public static void setup(){ public static void setup(){
employees = new Employee[MAX]; createEmployeesArray();
Employee employee; }
for(int i = 0; i < MAX; i++) {
employee = new Employee(); private static void createEmployeesArray() {
employee.setName("Emp"+i); employees = new Employee[MAX];
employee.setId(i); Employee employee;
employees[i] = employee; for(int i = 0; i < MAX; i++) {
} employee = new Employee();
employee.setName("Emp"+i);
employee.setId(i);
employees[i] = employee;
}
} }
@Test @Test
@ -32,10 +36,7 @@ public class ArrayCopyUtilTest {
System.arraycopy(array, 0, copiedArray, 0, 3); System.arraycopy(array, 0, copiedArray, 0, 3);
Assert.assertTrue(array.length == copiedArray.length); Assert.assertArrayEquals(copiedArray, array);
Assert.assertTrue(copiedArray[0] == array[0]);
Assert.assertTrue(copiedArray[1] == array[1]);
Assert.assertTrue(copiedArray[2] == array[2]);
} }
@Test @Test
@ -70,12 +71,7 @@ public class ArrayCopyUtilTest {
int[] copiedArray = Arrays.copyOf(array, newLength); int[] copiedArray = Arrays.copyOf(array, newLength);
Assert.assertNotNull(copiedArray); Assert.assertArrayEquals(copiedArray, array);
Assert.assertTrue(copiedArray.length == array.length);
Assert.assertTrue(copiedArray[0] == array[0]);
Assert.assertTrue(copiedArray[1] == array[1]);
Assert.assertTrue(copiedArray[2] == array[2]);
Assert.assertTrue(copiedArray[3] == array[3]);
array[0] = 9; array[0] = 9;
Assert.assertTrue(copiedArray[0] != array[0]); Assert.assertTrue(copiedArray[0] != array[0]);
copiedArray[1] = 12; copiedArray[1] = 12;
@ -86,8 +82,7 @@ public class ArrayCopyUtilTest {
public void givenArrayOfNonPrimitiveType_whenCopiedViaArraysCopyOf_thenDoShallowCopy(){ public void givenArrayOfNonPrimitiveType_whenCopiedViaArraysCopyOf_thenDoShallowCopy(){
Employee[] copiedArray = Arrays.copyOf(employees, employees.length); Employee[] copiedArray = Arrays.copyOf(employees, employees.length);
Assert.assertNotNull(copiedArray); Assert.assertArrayEquals(copiedArray, employees);
Assert.assertTrue(copiedArray.length == employees.length);
employees[0].setName(employees[0].getName()+"_Changed"); employees[0].setName(employees[0].getName()+"_Changed");
//change in employees' element caused change in the copied array //change in employees' element caused change in the copied array
Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName())); Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName()));
@ -99,12 +94,7 @@ public class ArrayCopyUtilTest {
int[] copiedArray = array.clone(); int[] copiedArray = array.clone();
Assert.assertNotNull(copiedArray); Assert.assertArrayEquals(copiedArray, array);
Assert.assertTrue(copiedArray.length == array.length);
Assert.assertTrue(copiedArray[0] == array[0]);
Assert.assertTrue(copiedArray[1] == array[1]);
Assert.assertTrue(copiedArray[2] == array[2]);
Assert.assertTrue(copiedArray[3] == array[3]);
array[0] = 9; array[0] = 9;
Assert.assertTrue(copiedArray[0] != array[0]); Assert.assertTrue(copiedArray[0] != array[0]);
copiedArray[1] = 12; copiedArray[1] = 12;
@ -115,8 +105,7 @@ public class ArrayCopyUtilTest {
public void givenArraysOfNonPrimitiveType_whenCopiedViaArrayClone_thenDoShallowCopy(){ public void givenArraysOfNonPrimitiveType_whenCopiedViaArrayClone_thenDoShallowCopy(){
Employee[] copiedArray = employees.clone(); Employee[] copiedArray = employees.clone();
Assert.assertNotNull(copiedArray); Assert.assertArrayEquals(copiedArray, employees);;
Assert.assertTrue(copiedArray.length == employees.length);
employees[0].setName(employees[0].getName()+"_Changed"); employees[0].setName(employees[0].getName()+"_Changed");
//change in employees' element changed the copied array //change in employees' element changed the copied array
Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName())); Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName()));
@ -128,29 +117,25 @@ public class ArrayCopyUtilTest {
Address[] copiedArray = addresses.clone(); Address[] copiedArray = addresses.clone();
Assert.assertNotNull(copiedArray);
Assert.assertTrue(copiedArray.length == addresses.length);
addresses[0].setCity(addresses[0].getCity()+"_Changed"); addresses[0].setCity(addresses[0].getCity()+"_Changed");
Assert.assertTrue(copiedArray[0].getCity().equals(addresses[0].getCity())); Assert.assertArrayEquals(copiedArray, addresses);
} }
@Test @Test
public void givenArraysOfSerializableNonPrimitiveType_whenCopiedViaSerializationUtils_thenDoDeepCopy(){ public void givenArraysOfSerializableNonPrimitiveType_whenCopiedViaSerializationUtils_thenDoDeepCopy(){
Employee[] copiedArray = SerializationUtils.clone(employees); Employee[] copiedArray = SerializationUtils.clone(employees);
Assert.assertNotNull(copiedArray);
Assert.assertTrue(copiedArray.length == employees.length);
employees[0].setName(employees[0].getName()+"_Changed"); employees[0].setName(employees[0].getName()+"_Changed");
//change in employees' element didn't change in the copied array //change in employees' element didn't change in the copied array
Assert.assertFalse(copiedArray[0].getName().equals(employees[0].getName())); Assert.assertFalse(
copiedArray[0].getName().equals(employees[0].getName()));
} }
@Test @Test
public void givenArraysOfNonPrimitiveType_whenCopiedViaStream_thenDoShallowCopy(){ public void givenArraysOfNonPrimitiveType_whenCopiedViaStream_thenDoShallowCopy(){
Employee[] copiedArray = Arrays.stream(employees).toArray(Employee[]::new); Employee[] copiedArray = Arrays.stream(employees).toArray(Employee[]::new);
Assert.assertNotNull(copiedArray); Assert.assertArrayEquals(copiedArray, employees);
Assert.assertTrue(copiedArray.length == employees.length);
employees[0].setName(employees[0].getName()+"_Changed"); employees[0].setName(employees[0].getName()+"_Changed");
//change in employees' element didn't change in the copied array //change in employees' element didn't change in the copied array
Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName())); Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName()));
@ -162,11 +147,7 @@ public class ArrayCopyUtilTest {
String[] copiedArray = Arrays.stream(strArray).toArray(String[]::new); String[] copiedArray = Arrays.stream(strArray).toArray(String[]::new);
Assert.assertNotNull(copiedArray); Assert.assertArrayEquals(copiedArray, strArray);
Assert.assertTrue(copiedArray.length == strArray.length);
Assert.assertTrue(copiedArray[0] == strArray[0]);
Assert.assertTrue(copiedArray[1] == strArray[1]);
Assert.assertTrue(copiedArray[2] == strArray[2]);
} }
private Address[] createAddressArray(){ private Address[] createAddressArray(){