Dynamics Community Forum Thread Details

Unit testing

Hi,

Let's say i have the following class:

class class1
{
    public tableX getInfo(tableY _tableY)
    {
        tableX      tableX;
        this.validate(_tableY);
        int          x    =   2;

        if (x == 2)
        {    

            tableX = this.insertTableX(_tableY.Id);

        }

        return tableX;

    }

    public void validate(tableY _tableY)
    {
        if (!_tableY.Id )
        {
            throw Error(strFmt("@label:Error1"   " "   "@label:Error2",_tableY.desc));
        }
        if ( _tableY.Age != 0 )
        {
            throw Error(strFmt("label:Error1"   " "   "@label:Error3",_tableY.desc));
        }
    }


    }

    /// 
    ///   
    /// 
    public tableX insertTableX(tableY _tableY)
    {
        ttsbegin;
        _tableX.Id = _tableY.Id;
        _tableX.desc = _tableY.desc;
        _tableX.Age = _tableY.Age;
        _tableX.insert();
        ttscommit;

        return tableX;
    }

}

As you can see in method getInfo (i call the other two methods) so when i do unit testing 1) should i test the method getInfo or only the other two methods?

This is my first time doing unit testing. So i wanted to start with only the method Validate():

[SysTestTargetAttribute('class1',UtilElementType::Class)]
class class1Test extends SysTestCase
{
    tableX tableX;
    tableY tableY;
    class1 class1;
    /// 
    ///
    /// 
    public void setUp()
    {
        class1 = new class1();
        super();
    }

    [SysTestMethodAttribute]
    public void testValidate_ValidationPassed()  //it passed
    {       
        tableY.Id = "1";
        tableY.desc = "desc";
        tableY.Age = 3;
        class1.validate(tableY);
        this.parmExceptionExpected(false);
    }

    [SysTestMethodAttribute]
    public void testValidate_IdMissing() //this is failing why?
    {
        tableY.Id = "";
        tableY.desc = "desc";
        tableY.Age = 3;
        class1.validate(tableY);
        this.parmExceptionExpected(true,strFmt("@label:Error1"   " "   "@label:Error2",tableY.desc);
    }
    
    [SysTestMethodAttribute]
    public void testValidate_AgeMissing()   //this is failing why?
    {
        tableY.Id = "1";
        tableY.desc = "desc";
        tableY.Age = 0;
        class1.validate(tableY);
        this.parmExceptionExpected(true,strFmt("@label:Error1"   " "   "@label:Error3",tableY.desc);
    }

}

As you can see i made three scenarios for method validate 2) is that correct? and i read about AAA concept, 3) am i doing it right? or i should have defined tableX,table Y in the setUp method? Also is it correct that i'm redefining the values of tableY in each method?

4) testValidate method passed but testValidate_IdMissing() and testValidate_AgeMissing() failed can someone tell me why????? I noticed that this is because the actual method throws an error before it reaches parmExceptionExpected so how should i do my unit testing for this?

5) how to do unit testing for the insert method?

Hello,

Here are the answers for your questions:

1) Unit testing is targeting at the method itself. You should write test cases for all your methods. When test getInfo(), ideally you should write the stub for the other methods it’s calling.
2) You should consider all the possible scenarios for validate(), e.g. _tableY Is null, _tableY.Id Is null/zero, _tableY.Age Is zero/non-zero…
3) It’s up to you to choose which kinds of initialization method. In a complex test case, usually we consider to initialize the parameters in the setUp().
4) Yes, you should write this.parmExceptionExpected() before calling the actual method.
5) Call insertTableX with your test data and query the table to verify the test result.

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