failing unit tests (deprecated pytests method invocation)

[robdennis]

py27 run-test: commands[1] | coverage run --source=ship_it -m py.test tests
============================= test session starts ==============================
platform linux2 -- Python 2.7.14, pytest-4.5.0, py-1.8.0, pluggy-0.11.0
cachedir: /home/travis/build/robdennis/ship_it/.tox/py27/.pytest_cache
rootdir: /home/travis/build/robdennis/ship_it/tests
collected 133 items                                                            
tests/test_full_invocation.py .......FF.                                 [  7%]
tests/test_invoke_fpm.py .................                               [ 20%]
tests/test_manifest.py ................................................. [ 57%]
...............................                                          [ 80%]
tests/test_virtualenv.py ..........................                      [100%]
=================================== FAILURES ===================================
____________ TestCallingTheRightPackaging.test_installing[manifest] ____________
self = <tests.test_full_invocation.TestCallingTheRightPackaging object at 0x7f5f00683a90>
mock_install = <MagicMock name=u'install_package' id='140046006941136'>
request = <FixtureRequest for <Function test_installing[manifest]>>
man_fixture = 'manifest'
    @pytest.mark.parametrize('man_fixture', ['manifest', 'install_manifest'])
    @mock.patch('ship_it.virtualenv.VirtualEnvPackager.install_package')
    def test_installing(self, mock_install, request, man_fixture):
>       the_manifest = request.getfuncargvalue(man_fixture)
tests/test_full_invocation.py:63: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
self = <FixtureRequest for <Function test_installing[manifest]>>
argname = 'manifest'
    def getfuncargvalue(self, argname):
        """ Deprecated, use getfixturevalue. """
        from _pytest import deprecated
    
>       warnings.warn(deprecated.GETFUNCARGVALUE, stacklevel=2)
E       RemovedInPytest4Warning: getfuncargvalue is deprecated, use getfixturevalue
.tox/py27/lib/python2.7/site-packages/_pytest/fixtures.py:484: RemovedInPytest4Warning
________ TestCallingTheRightPackaging.test_installing[install_manifest] ________
self = <tests.test_full_invocation.TestCallingTheRightPackaging object at 0x7f5f00683a10>
mock_install = <MagicMock name=u'install_package' id='140046005607120'>
request = <FixtureRequest for <Function test_installing[install_manifest]>>
man_fixture = 'install_manifest'
    @pytest.mark.parametrize('man_fixture', ['manifest', 'install_manifest'])
    @mock.patch('ship_it.virtualenv.VirtualEnvPackager.install_package')
    def test_installing(self, mock_install, request, man_fixture):
>       the_manifest = request.getfuncargvalue(man_fixture)
tests/test_full_invocation.py:63: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
self = <FixtureRequest for <Function test_installing[install_manifest]>>
argname = 'install_manifest'
    def getfuncargvalue(self, argname):
        """ Deprecated, use getfixturevalue. """
        from _pytest import deprecated
    
>       warnings.warn(deprecated.GETFUNCARGVALUE, stacklevel=2)
E       RemovedInPytest4Warning: getfuncargvalue is deprecated, use getfixturevalue
.tox/py27/lib/python2.7/site-packages/_pytest/fixtures.py:484: RemovedInPytest4Warning
===================== 2 failed, 131 passed in 1.02 seconds =====================
ERROR: InvocationError for command /home/travis/build/robdennis/ship_it/.tox/py27/bin/coverage run --source=ship_it -m py.test tests (exited with code 1)
___________________________________ summary ____________________________________
ERROR:   py27: commands failed
The command "tox -e $TOX_ENV" exited with 1.