Hi,
Suppose I have a component TMyDataProcessor with the following declaration:
type
TMyDataProcessor = class
function process(const s: string) : string;
end;
Now I want to test it with different strings, but instead of hard coding
them I put them in a inifile, so I can easily extend the test.
[test 1]
Input=Test
Output=tEST
[test 2]
Input=1234
Output=1234
Now I write a fpcunit test that reads those tests input/output pairs
from the ini file and executes them, see following (psuedo) code:
procedure TMyTestCase.TestOutputs;
var
MyDataProcessor: TMyDataProcessor;
begin
for each section in the ini-file do begin
MyDataProcessor := TMyDataProcessor.Create;
Load Input, Load Output
AssertEquals(SectionName + 'failed. ',
Output, MyDataProcessor(Input));
MyDataProcessor.Free;
end;
end;
As far as I can see, the drawback of using this method is that if there
is a failure in test 1, test 2 won't run at all. I will loose
information about what could have been wrong.
A solution would be to have different test methods for each test in the
ini file, but I want to avoid that, because then adding a test, will
mean that I need to change the code (after having created the data).
Do you know how I can create data driven tests, so that it will display
the test results of the second test, even if the first test fails.
Vincent
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