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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Because the expectations are defined within an anonymous inner class, any mock objects or other values that are stored in local variables cookbooi referenced from within the expectations block must be final. The same as allowing. You can give an expectation as many inSequence 2when 3will and then 4 clauses as you wish.

You can define expectations in helper methods or cookook setUp method to remove duplication or clarify the test code. JUnit 3 JUnit 4 Other. JUnit 3 JUnit 4 Other. Except for the invocation count and the mock object, all clauses are optional.

An invocation can be constrained to occur during a state of one more more state machines.

The type argument is required to force Java to type-check the jmkck at compile time. To define looser constraints, specify all arguments as matchers within with clauses:. Tests written with JUnit 3 can extend MockObjectTestCase, in which case they don’t need to explictly create or refer to cokbook context. The examples above assume that the mock object is stored in an instance variable.

The argument matches all of the Matchers m 1 to m n.

Specifying Expectations

Constants have the added benefit of making the test easier to understand than they would be if unnamed, literal values were used. The intial state is optional. The argument is null. It is often more convenient to store mock objects in instance variables and define constants for the values used in the test, as the examples above do.

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A test can contain multiple expectation blocks. A Mockery creates mock objects and checks expectations that are set upon those mock objects. Expectations are defined within a “Double-Brace Block” that defines the expectations in the context of cookbooj the test’s Mockery identified as context in the examples below. A Mockery represents jkock context of the object jmck test: The invocation is expected at least min times and at most max times.

jMock – Cookbook

Constrains the last expectation to occur only when the state machine is in the named state. For example, the test above can be rewritten as follows to more clearly express when the cache loads an object will be loaded and when it returns a cached copy:. A test can create multiple state machines and each state machine can have multiple states. 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.

This can be used to clarify exactly when xookbook calls cookboko happen in response to calls to the object under test. Conditions are represented as states of state machines. By convention the Mockery is stored in an instance variable cookbool context. Changes the state of state-machine to the named state when the invocation occurs. Software jMock 2 Java 1. Return a new iterator over elements v 1 jmodk v n on each invocation.

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jMock – jMock 2 Cheat Sheet

The invocation is expected exactly n times. An expectations block can contain any number of expectations. The argument is not null.

If not specified, the state machine starts in an unnamed initial state. In outline, a jMock 2 test looks like the following: Allowing or ignoring should be chosen to make the test code clearly express intent.

Do all actions a 1 to a n on every invocation. States are used to constrain invocations to occur only when a condition is true. An expectations block can contain any number of expectations. Except for the invocation count 1 and the mock object, all clauses are optional. In outline, a jMock 2 test looks like the following:. To expect a sequence of invocations, write the expectations in order and add the inSequence sequence clause to each one.

A test can create more than one sequence and an expectation can be part of more than once sequence at a time.

Expectations in later blocks are appended to those in earlier blocks. The argument matches one of the Matchers m 1 to m n.

The following clauses constrain invocations to occur within specific states and define how an invocation will change the current state of a state machine. You can give an expectation as many inSequencewhenwill and then clauses as you wish.

The invocation is not expected at all.

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