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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Return a new iterator over elements v 1 to v n on each invocation.
The most commonly used matchers are defined in the Expectations 1 class:. An expectations block can contain any number of expectations. Software jMock 2 Java 1. The argument matches one of the Matchers m 1 to m n. 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.
An invocation can be constrained to occur during a state of one more more state machines.
The jMock Cookbook
Expectations do not cookbpok to be defined in the body of the test method. Each expectation has the following structure:. The examples above assume that the mock object is stored in an instance variable. Expectations can be interspersed with calls to the code under test. Allowing or ignoring should be chosen to make the test code clearly express intent.
The argument is null. A test can contain multiple expectation blocks.
jMock 2 Cheat Sheet
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. Software jMock 2 Java 1. Conditions are represented as states of state machines. This can be used to clarify exactly when expected calls will happen in response to calls to the object under test.
jMock – Cookbook
The type argument is required to force Java to type-check the argument at compile time. Invocations that are expected in a sequence must occur in cookbook order in which they appear in the test code. The invocation is not expected at all. Tests written with JUnit 3 can extend MockObjectTestCase, in which case they don’t need to explictly create or refer to the context.
This is jmoxk to make tests more explicit and so easier to understand. Expectations in later blocks are appended to those in earlier blocks. The argument matches all of the Matchers m 1 to m n. In outline, a jMock 2 test looks like the following: For example, the test above can be cookbkok as follows to more clearly express when the cache loads an object will be loaded and when it returns a cached copy:. 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.
States are used to constrain invocations to occur only when a condition is true. If not specified, the state machine starts in an unnamed initial state. In outline, a jMock 2 test looks like the following:. By convention the Mockery is stored in an instance variable named context.
The JUnit 3 and JUnit 4 integration layers automatically assert that all expectations have been satisfied. The argument is not null. A test can contain multiple expectation blocks. You can give an expectation cookgook many colkbookwhenwill and then clauses as you wish.
The invocation is expected exactly n times. To define looser constraints, specify all arguments as matchers within with clauses:. The invocation is expected at least min cookbopk and at most max times. You can define expectations in helper methods or the setUp method to remove duplication or clarify the test code.
JUnit 3 JUnit 4 Other.
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. Constants have the added benefit of making the test easier to understand than they would be if unnamed, literal values were used.
Specifying Expectations Expectations are cooobook 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.
An expectations block can contain any number of expectations. You can give an expectation as many inSequence 2when 3will and then 4 clauses as you wish. Except for the invocation count and the mock object, all clauses are optional.