@Test
public void singletonCreatesOnlyOneInstance() {
SingletonDBConnection testSingle2 = null;
SingletonDBConnection testSingle3 = null;
testSingle2 = SingletonDBConnection.getInstance();
testSingle3 = SingletonDBConnection.getInstance();
Assert.assertNotNull("Shouldn't be NULL", testSingle2);
Assert.assertNotNull("Shouldn't be NULL", testSingle3);
Assert.assertSame("Should be the same object", testSingle2, testSingle3);
}
@Test
public void singletonCreatesSomeInstance() {
SingletonDBConnection testSingle1 = null;
testSingle1 = SingletonDBConnection.getInstance();
Assert.assertNotNull("Shouldn't be NULL", testSingle1);
}