JMOCK COOKBOOK PDF

Write an awesome description for your new site here. You can edit this line in It will appear in your document head meta (for Google search results ). JUnit + JMock. JMock – Java framework for mock objects, which helps by: automatically creating mock objects The JMock homepage at The JMock Cookbook at http://jmock. org/ The JMock cheetsheet at

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More matchers are defined as static factory methods of the Hamcrest Matchers class 2which can be statically imported at the top of the test code. Changes the state of state-machine to the named state when the invocation occurs. You can give an expectation as many inSequencewhenwill and then clauses as you wish.

The argument matches all of the Matchers m 1 to m n. The JUnit 3 and JUnit 4 integration layers automatically assert that all expectations have been satisfied. The argument matches one of the Matchers m 1 to m n.

JUnit 3 JUnit cookboom Other. The invocation is expected at least min times and at most max times. Specifying Expectations Expectations are defined within a “Double-Brace Block” that defines the expectations in the context of the the test’s Mockery identified as context in the examples below.

In outline, a jMock 2 test looks like the following:. An expectations block can contain any number of cookbolk. Return a new iterator over elements v 1 to v n on each invocation.

Specifying Expectations

You can give an expectation as many inSequence 2when 3will and then 4 clauses as you wish. A test can create more than one sequence and an expectation can be part of more than once sequence at a time.

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Tests written with JUnit 4 do not need to extend a specific base class but must specify that they use jMock with the RunWith attribute, create a JUnit4Mockery that reports expectation failures as JUnit 4 test failures, and store the Mockery in an instance variable.

Constrains the last expectation to occur only when the state machine is in the named state. Allowing or ignoring should be cookboook to make the test code clearly express intent.

The type argument is required to force Java to type-check the argument at compile time. The argument is not null. By convention the Mockery is stored in an instance variable named context. The intial state is optional. Tests written with JUnit 3 can extend MockObjectTestCase, in which case they don’t need to explictly create or refer to the context. A Mockery creates mock objects and checks expectations that are set upon those mock objects.

The argument is any value. JUnit 3 JUnit 4 Other. Expectations do not have to be defined in the body of the test method.

jMock – jMock 2 Cheat Sheet

A Mockery represents the context of the object under test: Cookbolk can be used to clarify exactly when expected calls will happen in response to calls to the object under test.

A test can create multiple state machines and each state machine can have multiple states. A test can contain multiple expectation blocks.

Expectations in later blocks are appended to those in earlier blocks. The following clauses constrain invocations to occur within specific states and define how an invocation will change the current state of a state machine.

The argument is null. Except for the invocation count 1 and the mock object, all clauses are optional.

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Except for the invocation count and the mock object, all clauses are optional. Expectations in later blocks are appended to those in earlier blocks.

To expect a sequence of invocations, write the expectations in order and add the inSequence sequence clause to each one. The invocation is not expected at all. The most commonly used matchers are defined ccookbook the Expectations 1 class:.

jMock – Specifying Expectations

The invocation is expected exactly n times. Software jMock 2 Java 1. You can define expectations in helper methods or the setUp method cookbok remove duplication or clarify the test code. Expectations can be interspersed with calls to cookboo, code under test. A test can contain multiple expectation blocks. This is used to make tests more explicit and so easier to understand.

The same as allowing. Each expectation has the following structure:. It is often more convenient to store ciokbook objects in instance variables and define constants for the values used in the test, as the examples above do. If not specified, the state machine starts in an unnamed initial state. Constants have the added benefit of making the test easier to understand than they would be if unnamed, literal values were used.

Because the expectations are defined within an anonymous inner class, any mock objects or other values that are stored in local variables and referenced from within the expectations block must be final.