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<p class="MsoNormal">Hi Nova Devs,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Many times, there are a number of data sets that we have to run the same tests on.<o:p></o:p></p>
<p class="MsoNormal">And, to create a different test for each data set values is time-consuming and inefficient.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Data Driven Testing [1] overcomes this issue. Data-driven testing (DDT) is taking a test,<o:p></o:p></p>
<p class="MsoNormal">parameterizing it and then running that test with varying data. This allows you to run the<o:p></o:p></p>
<p class="MsoNormal">same test case with many varying inputs, therefore increasing coverage from a single test,<o:p></o:p></p>
<p class="MsoNormal">reduces code duplication and can ease up error tracing as well.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">DDT is a third party library needs to be installed separately and invoke the<o:p></o:p></p>
<p class="MsoNormal">module when writing the tests. At present DDT is used in cinder and rally.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To start with, I have reported this as a bug [2] and added initial patch [3] for the same,<o:p></o:p></p>
<p class="MsoNormal">but couple of reviewers has suggested to discuss about this on ML as this is not a real bug.<o:p></o:p></p>
<p class="MsoNormal">IMO this is not a feature implementation and it’s just a effort for simplifying our tests,<o:p></o:p></p>
<p class="MsoNormal">so a blueprint will be sufficient to track its progress.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So please let me know whether I can file a new blueprint or nova-specs to proceed with this.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[1] http://ddt.readthedocs.io/en/latest/index.html<o:p></o:p></p>
<p class="MsoNormal">[2] https://bugs.launchpad.net/nova/+bug/1604798<o:p></o:p></p>
<p class="MsoNormal">[3] https://review.openstack.org/#/c/344820/<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you,<o:p></o:p></p>
<p class="MsoNormal">Dinesh Bhor<o:p></o:p></p>
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