JMock expectations oneOf VS one difference Is any difference in using one() or oneOf() in JMock? In cheat sheet mentioned before there is also example. Appendix A. jMock2 Cheat Sheet Introduction We use jMock2 as our mock object We’re using JUnit (we assume you’re familiar with it); jMock also. jMock 1 Documentation Stubs, Expectations and the Dispatch of Mocked Methods in jMock 1 3; Mocking Classes with jMock 1 and CGLIB 4 Cheat Sheet .

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You don’t have to explicitly verify the mock objects in your tests. Conditions are represented as states of state machines. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

A Mockery creates mock objects and checks expectations that are set upon those mock objects. Email Required, but never shown. Which probably jmoc, that oneOf means that I expect that could be more invocations of method add and in this case there are two invocations one of them is with parameters 1 and 1, and second with parameters 2 and 2.

The following code specifies that method “doSomething” must be called with an argument that is a string containing the text “hello”. As a jmck of thumb, use equal for value objects and same for behavioural objects.

To test interactions between sheeg Publisher and the Subscriber we will use a mock Subscriber object.

This is useful for ignoring arguments that are not relevant to the scenario being tested. We will test that a Publisher sends a message to a single registered Subscriber. Jmocm argument is not null. The following clauses constrain invocations to occur within specific states and define how an invocation will change the current state of a state machine.


This is used to make tests more explicit and so easier to understand. After the code under test has finished our test must verify that the mock Subscriber was shete as expected.

If the expected calls were not made, the test will fail. The following code specifies that method “doSomething” must be called with two Strings, the first must be null and the second must not be null. The most commonly used matchers are defined cheah the Expectations 1 class:. If not specified, the state machine starts in an unnamed initial state. States are used to constrain invocations to occur only when a condition is true.

In tests I can see using one and in other there is oneOf. The argument matches one of the Matchers m 1 to m n. Constrains the last expectation to occur only when the state machine is in the named state. Sometimes, however, you will need to define looser constraints over parameter values to clearly express the intent of the test or to ignore parameters or parts of parameters that are not relevant to the behaviour being tested.

The following code specifies that the method “doSomething” must be called with a string that either contains the text “hello” or the text “howdy”. Sign up using Facebook.

The JUnit 3 and JUnit 4 integration layers automatically assert that all expectations have been satisfied. JUnit 3 JUnit 4 Other. Finally we create a message object to publish. Allowing or ignoring should be chosen to make the test code clearly express intent. The MockObjectTestCase does this cheah.

jMock – Matchers

Do all actions a 1 to a n on every invocation. This is a tighter constraint than equalbut is usually what you want for arguments that pass references to behavioural objects. The intial state is optional. The allOf matcher specifies that the actual argument must meet all of the matchers given as arguments. Tests written with JUnit 3 can extend MockObjectTestCase, in which case they don’t need to explictly create or refer to the context. We want to test the Publisher, which involves testing its interactions with its Subscribers.


LoganMzz 1, 2 12 Null values are checked beforehand, so it is safe to specify equal null or apply the matcher to a null actual value. If a mock object is stored in a local variable, the variable must be declared as final so that it can be referred to from within expectation blocks see below. The argument is null. Software jMock 2 Java 1. By convention the Mockery is stored in an instance variable named context. Expectations in later blocks are appended to those in earlier blocks.

The jMock library is explored in more depth in other Cookbook recipes 2. We first set up the context in which our test will execute.

Getting Started

The question is if there is any shset between this keywords or it means equaly the same thing. A test can create more than one sequence and an expectation can be part of more than once sequence at a time. Well this finally make sense: But the exactly one aka exactly 1.

Arrays are treated as a special case: Factory methods for commonly used matchers are defined in the Expectations class. The result of each factory method must be wrapped by a call to the with method. Changes the state of state-machine to the named state when the invocation occurs.

A Mockery represents the context of the object under test: Take a look at source code of AbstractExpectations.