Happy to help guide you on the path to your answer.
Just to confirm you are wanting to create a Gantt chart?
Have you tried following this guide?
It looks like you almost have it - the data also should be structured in the same columns - not flattened out as you have done in the Progress Chart.
IE this format:
Date Column Value
11/01/2016 Pass 0
11/01/2016 Cum. Pass 0
Does that make sense? Then you should have an easier time with it.
Also to work this towards live data I think that this worksheet is missing a step for the calculations to get to your Progress Chart table from the Raw Data. Unfortunately as my domain knowledge is not in the testing domain I am not sure of your calculations. If you talked me through 1 row with calculations you may be able to embed that in Tableau. Once I have that information I am happy to provide you with a mockup - or someone may jump ahead of me.