Interpreting test results across test runs

Chris Gregan chris.gregan at
Thu Nov 4 20:02:05 UTC 2010

On 11/03/2010 12:22 PM, Marc Tardif wrote:
> Hi folks,
> I would appreciate your feedback about interpreting test results across
> multiple test runs. For example, consider the following test results for
> the first test run of a given project:
>    test1: Pass
>    test2: Pass
>    test3: Fail
> Then, consider the following partial test results for a second test run
> of the same project:
>    test1: Pass
> The second test run only executed the first test and, for the sake of
> this example, we can safely assume that this was deliberate and the
> test runner process did not crash and burn.

> My question is: can we make any reasonable assumptions about the tests
> that were not run?

The assumption is that something was changed in the release that QA 
thought could break test1 so only ran it to confirm. The traditional 
assumption for the other cases is that their previous run states have 
not changed as well.

> assume that test results remain the same until proven otherwise.


> I'm calling for your opinions on what you consider is reasonable.
> Thanks!

Chris Gregan
QA Manager
OEM Services Group
Canonical USA Inc.
cgregan at

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