Java 各種Mock工具比較

轉自：

http://billben.iteye.com/blog/1872196

http://harrywu304.blog.163.com/blog/static/8456603201141611147777/

可用的Mock Toolkit有許多，比較常見的有EasyMock, Jmock和JMockit等等，到底選哪個呢，Jmockit的官網上有個特性對比列表，很詳細：

Feature	EasyMock	jMock	Mockito	Unitils Mock	PowerMock: EasyMock  API	PowerMock: Mockito  API	JMock it
Invocation count constraints	√	√	√		√	√	√
Recording strict expectations	√	√			√		√
Explicit verification			√	√		√	√
Partial mocking	√		√	√	√	√	√
No method call to switch from record to replay			√	√		√	√
No extra code for implicit verification			N/A	N/A		N/A	√
No extra "prepare for test" code	√	√	√	√			√
No need to use @RunWith annotation or base  test class	√	√	√				√
Consistent syntax between void and non-void methods		√		√			√
Argument matchers for some parameters only,  not all				√			√
Easier argument matching based on properties  of value objects	√		√	√	√	√	√
Cascading mocks			√	√		√	√
Support for mocking multiple interfaces			√			√	√
Support for mocking annotation types		√	√	√		√	√
Partially ordered expectations		√					√
Mocking of constructors and final/static/native/private methods					√	√	√
Declarative application of mocks/stubs to  whole test classes					√	√	√
Auto-injection of mocks			√	√		√	√
Mocking of "new-ed" objects					√	√	√
Support for mocking enum types					√	√	√
Declarative mocks for the test class (mock  fields)			√	√	√	√	√
Declarative mocks for test methods  (parameters, local fields)