Creating a unit test class for a contract class
To write the unit test class of a contract class, first of all we need to create a new contract class and then test the logic of that contract class using the unit test class. In this recipe, we will use an existing contract class; we will write the unit test class of that existing contract class. As explained in earlier chapters, a contract class consists of parm methods which are used to set or get the variables. A unit test class extends the SysTestCase class.
We can also check the code coverage of business logic in Microsoft Dynamics AX R3 using a unit test parameter.
Getting ready
To work through this recipe, you will require AX 2012 R2 or AX 2012 R3 rich client with developer permission. You need a contract class for the unit test class. We will use the existing contract class, VendInvoiceContract.
How to do it...
We will first set some parameters of unit test in Dynamics AX R3 to measure the code coverage of business logic, as follows:
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