Merge branch '68-refactor-tests' into 'develop'

Resolve "refactor tests" Closes #68 See merge request las-nq/openqlab!33

Merge branch '68-refactor-tests' into 'develop'
d8678b6e · Christian Darsow Fromm · 5d862a17 · 799a79ca · d8678b6e · d8678b6e
Commit d8678b6e authored Dec 6, 2019 by Christian Darsow Fromm
--- a/src/tests/test_importers/test_tektronix_spectrogram/test_tektronix_spectrogram.py
+++ b/src/tests/test_importers/test_tektronix_spectrogram/test_tektronix_spectrogram.py
--- a/src/tests/test_plots.py
+++ b/src/tests/test_plots.py