I've been made aware of:

commit 195937c2da592d9993ada7609aea84f64523a711
Author: Nir Soffer <nsoffer@redhat.com>
Date:   Sun Oct 9 20:05:36 2016 +0300

    build: Disable tests during build
    
    Tests are needed for development, not for building a package. This
    allows us to use latest and greatest development tools, which are not
    available in brew or koji.


Please note that the spec file in current state is doing the opposite of what's recommended by Fedora guidelines[1]
Tests are not mandatory according to the guidelines but they're highly recommended.

[1] https://fedoraproject.org/wiki/Packaging:Guidelines#Test_Suites

--
Sandro Bonazzola
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