test_answerCell.m

function e=test_answerCell()
%
% Tests the answerCell function several cases and returns the number of errors.
%
% Answercell as described on CodingBat:
% 
% Your cell phone rings. Return true if you should answer it. Normally you 
% answer, except in the morning you only answer if it is your mom calling. In 
% all cases, if you are asleep, you do not answer. 
%
% Marcus Kelly, May 8, 2010
%
% Note: the following 8 test cases represent ALL POSSIBLE valid inputs
% for this program. It would be silly to add more.
%
%
                %isMorning %isMom %isAsleep %expect

e=0 ; 
e = e +  runtest(true,true,true,      false ) ; 
e = e +  runtest(true,true,false,     true  ) ; 
e = e +  runtest(true,false,true,     false ) ; 
e = e +  runtest(true,false,false,    false ) ; 
e = e +  runtest(false,true,true,     false ) ; 
e = e +  runtest(false,true,false,    true  ) ; 
e = e +  runtest(false,false,true,    false ) ; 
e = e +  runtest(false,false,false,   true  ) ; 




function e = runtest(test_isMorning,test_isMom,test_isAsleep,answer)

    result=answerCell(test_isMorning,test_isMom,test_isAsleep) ; 

    if ( result == answer )
        e=0 ;
        fprintf('       answerCell(%d,%d,%d)=%d\n',test_isMorning,test_isMom,test_isAsleep,answer) ; 
    else
        e=1 ; 
        fprintf('ERROR: answerCell(%d,%d,%d) returned %d, should be %d.\n',test_isMorning,test_isMom,test_isAsleep,result,answer) ; 
    end
end


end