Cosine tests cleaning + pep8 (#341)
Cosine tests cleaning + pep8 (#341)

* Cleaning the tests.

Removed the for loops and used parametrization.
Made all lines in the file shorted than 85 chars.

* Update doesn't return anything.

keras-team/keras-contrib,keras-team/keras-contrib,farizrahman4u/keras-contrib,keras-team/keras-contrib