org.onlab.junit

Class ImmutableClassChecker

java.lang.Object

org.onlab.junit.ImmutableClassChecker

public class ImmutableClassChecker
extends java.lang.Object

Hamcrest style class for verifying that a class follows the accepted rules for immutable classes. The rules that are enforced for immutable classes: - the class must be declared final - all data members of the class must be declared private and final - the class must not define any setter methods

Constructor Summary

Constructors

Constructor and Description
ImmutableClassChecker()

Method Summary

Modifier and Type	Method and Description
static void	assertThatClassIsImmutable(java.lang.Class<?> clazz) Assert that the given class adheres to the immutable class rules.
static void	assertThatClassIsImmutableBaseClass(java.lang.Class<?> clazz) Assert that the given class adheres to the immutable class rules, but is not declared final.
void	describeMismatch(org.hamcrest.Description description) Describe why an error was reported.
void	describeTo(org.hamcrest.Description description) Describe the source object that caused an error, using a Hamcrest Matcher style interface.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ImmutableClassChecker

public ImmutableClassChecker()

Method Detail

describeMismatch

public void describeMismatch(org.hamcrest.Description description)

Describe why an error was reported. Uses Hamcrest style Description interfaces.

Parameters:

description - the Description object to use for reporting the mismatch

describeTo

public void describeTo(org.hamcrest.Description description)

Describe the source object that caused an error, using a Hamcrest Matcher style interface. In this case, it always returns that we are looking for a properly defined utility class.

Parameters:

description - the Description object to use to report the "to" object

assertThatClassIsImmutable

public static void assertThatClassIsImmutable(java.lang.Class<?> clazz)

Assert that the given class adheres to the immutable class rules.

Parameters:

clazz - the class to check

Throws:

java.lang.AssertionError - if the class is not an immutable class

assertThatClassIsImmutableBaseClass

public static void assertThatClassIsImmutableBaseClass(java.lang.Class<?> clazz)

Assert that the given class adheres to the immutable class rules, but is not declared final. Classes that need to be inherited from cannot be declared final.

Parameters:

clazz - the class to check

Throws:

java.lang.AssertionError - if the class is not an immutable class