예제 #1
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 @Test
 public void checkThatOtherMethodsAreNonStatic() throws NoSuchMethodException {
   Method spin = Earth.class.getDeclaredMethod("spin");
   assertFalse("Method spin() should not be static", Modifier.isStatic(spin.getModifiers()));
   Method warmUp = Earth.class.getDeclaredMethod("warmUp");
   assertFalse("Method warmUp() should not be static", Modifier.isStatic(warmUp.getModifiers()));
 }
예제 #2
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 @Test
 public void checkEarthIsAbstract() throws NoSuchMethodException {
   assertTrue("Earth class should be abstract", Modifier.isAbstract(Earth.class.getModifiers()));
   assertTrue(
       "Earth class spin() method should be abstract",
       Modifier.isAbstract(Earth.class.getMethod("spin").getModifiers()));
   assertTrue(
       "Earth class warmUp() method should be abstract",
       Modifier.isAbstract(Earth.class.getMethod("warmUp").getModifiers()));
 }
예제 #3
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 @Test
 public void checkThatSingletonContainsStaticPrivateInstanceField() {
   Field field = findSingletonStaticPrivateInstanceField();
   assertNotNull("No static private instance field found.", field);
   assertTrue(
       "Field pointing to the Earth instance should be static",
       Modifier.isStatic(field.getModifiers()));
   assertTrue(
       "Field pointing to the Earth instance should be private",
       Modifier.isPrivate(field.getModifiers()));
 }
예제 #4
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 @Test
 public void checkThatConstructorIsProtected() {
   for (Constructor<?> constr : Earth.class.getDeclaredConstructors()) {
     assertTrue(
         "Constructors should be protected to allow subclasses of singleton",
         Modifier.isProtected(constr.getModifiers()));
   }
 }
예제 #5
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 private Method checkThatSingletonContainsStaticInstanceAccessorMethod(Class clazz) {
   for (Method method : clazz.getDeclaredMethods()) {
     if (method.getReturnType() == clazz && method.getParameterTypes().length == 0) {
       assertTrue(
           "Method returning the Earth instance should be static",
           Modifier.isStatic(method.getModifiers()));
       return method;
     }
   }
   fail("No static accessor method found.");
   return null; // will never be called.
 }