% testInchesToCm.m   test inchesToCm.m
% A. Casey for CISC106, sect 080, 10/01/2007

% Test formula to calculate length in cm given length in inches

%%%%%%%%%%%%%%%%%%%%%%%%
% define the tolerance %
%%%%%%%%%%%%%%%%%%%%%%%%

% tolerance is "how far away from the expected value" the result
% is allowed to be.  

tolerance = 0.001;

%%%%%%%%%%%%%%%%%
% Run the tests %
%%%%%%%%%%%%%%%%%

% Test 1


actual = inchesToCm(1);
expected = 2.54;

diff = abs(expected-actual);

if (diff < tolerance)
  disp('test 1 passed');
else
  disp('test 1 failed');
  expected
  actual
end
  

% Test 2

actual = inchestoCm(2);
expected = 5.08;

diff = abs(expected-actual);

if (diff < tolerance)
  disp('test 2 passed');
else
  % signal that test failed, and print both expected and actual
  disp('test 2 failed');
  expected
  actual
end
  

% end testInchesToCm.m