public void testNewInstance() {
ConstructorAccess<SomeClass> access = ConstructorAccess.get(SomeClass.class);
SomeClass someObject = new SomeClass();
assertEquals(someObject, access.newInstance());
assertEquals(someObject, access.newInstance());
assertEquals(someObject, access.newInstance());
}
public void testPackagePrivateNewInstance() {
ConstructorAccess<PackagePrivateClass> access =
ConstructorAccess.get(PackagePrivateClass.class);
PackagePrivateClass someObject = new PackagePrivateClass();
assertEquals(someObject, access.newInstance());
assertEquals(someObject, access.newInstance());
assertEquals(someObject, access.newInstance());
}
/**
* Get the constructor access of this class.
*
* @param <T> the class type
* @param clazz the class
* @return the constructor access
*/
public static final <T> ConstructorAccess<T> getConstructorAccess(Class<T> clazz) {
@SuppressWarnings("unchecked")
ConstructorAccess<T> ca = (ConstructorAccess<T>) CSTR_ACCESS_MAP.get(clazz);
if (ca == null) {
ca = ConstructorAccess.get(clazz);
CSTR_ACCESS_MAP.putIfAbsent(clazz, ca);
}
return ca;
}
public void testHasPublicConstructor() {
try {
ConstructorAccess<HasPublicConstructor> access =
ConstructorAccess.get(HasPublicConstructor.class);
HasPublicConstructor newInstance = access.newInstance();
assertEquals("cow", newInstance.getMoo());
} catch (Throwable t) {
System.out.println("Unexpected exception happened: " + t);
assertTrue(false);
}
}
public void testHasPrivateConstructor() {
try {
ConstructorAccess.get(HasPrivateConstructor.class);
assertTrue(false);
} catch (RuntimeException re) {
System.out.println("Expected exception happened: " + re);
} catch (Throwable t) {
System.out.println("Unexpected exception happened: " + t);
assertTrue(false);
}
}