[python-control-developers] [python-control/python-control] c596a1: More unit tests (#305)

[Richard M. <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/python-control/python-control
  Commit: c596a12f18cea4e66db82a938b70a345f85fca94
      https://github.com/python-control/python-control/commit/c596a12f18cea4e66db82a938b70a345f85fca94
  Author: Richard Murray <mu...@cd...>
  Date:   2019-05-31 (Fri, 31 May 2019)

  Changed paths:
    M control/bdalg.py
    M control/canonical.py
    M control/config.py
    M control/dtime.py
    M control/exception.py
    M control/frdata.py
    M control/freqplot.py
    M control/tests/bdalg_test.py
    M control/tests/canonical_test.py
    A control/tests/config_test.py
    M control/tests/discrete_test.py
    M control/tests/frd_test.py
    M control/tests/freqresp_test.py
    M control/tests/lti_test.py
    M control/tests/statesp_test.py
    M control/tests/xferfcn_test.py
    M control/xferfcn.py

  Log Message:
  -----------
  More unit tests (#305)

* TST: unit tests for issiso()

* add unit test for StateSpace copy constructor

* TRV: remove extra space

* update issiso() tests for lack of slycot

* add unit tests for bdalg coverage + fix uncovered bug

* add unit tests for canonical coverage

* add unit tests for config coverage + update docs

* add test to complete canonical coverage for modal form, mixed real/complex

* fix problem with figures persisting beyond config_test

* add unit tests for frdata converage + fix small, uncovered errors

* derive control exceptions from standard exceptions

* flag coverage issue in dtime

* fix py2.7 issue with repeated warnings not showing up

* add unit tests for xferfcn converage

* update xferfcn mimo tests to require slycot