Use pytest instead of testtools

[ralittles]

Ported all of the unit tests written in testtools from the tests/ directory to now be based on the pytest package and live in the pytests/ directory.

Unfortunately Pytest compatiability is limited to Python 3. To run them, do:

$ python3 -m pytest pytests/

From the regular root directory of the project.

You should see:

=========================================================== test session starts ============================================================
platform linux -- Python 3.5.2, pytest-4.0.2, py-1.7.0, pluggy-0.8.0
rootdir: /home/dev/version1/Version1fromGithub/VersionOne.SDK.Python, inifile:
collected 25 items                                                                                                                         

pytests/test_common_setup.py .                                                                                                       [  4%]
pytests/test_connects.py .........                                                                                                   [ 40%]
pytests/test_creations.py ...                                                                                                        [ 52%]
pytests/test_operations.py ..                                                                                                        [ 60%]
pytests/test_queries.py .........                                                                                                    [ 96%]
pytests/test_string_utils.py .                                                                                                       [100%]

======================================================== 25 passed in 78.69 seconds ========================================================

The original tests/ directory was left in for Python 2 compatbility and are still accessible and passing via the target in setup.py.

Here are the results:

running egg_info
writing requirements to v1pysdk.egg-info/requires.txt
writing v1pysdk.egg-info/PKG-INFO
writing top-level names to v1pysdk.egg-info/top_level.txt
writing dependency_links to v1pysdk.egg-info/dependency_links.txt
reading manifest file 'v1pysdk.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching 'product.json'
writing manifest file 'v1pysdk.egg-info/SOURCES.txt'
running build_ext
test_create_story (tests.creation_tests.TestV1Create)
tests.creation_tests.TestV1Create.test_create_story ... ok
test_connect (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_connect ... ok
test_connect_fails_when_invalid (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_connect_fails_when_invalid ... ok
test_meta_connect_instance_and_address (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_meta_connect_instance_and_address ... ok
test_meta_connect_instance_url (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_meta_connect_instance_url ... ok
test_meta_connect_instance_url_overrides_separate (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_meta_connect_instance_url_overrides_separate ... ok
test_meta_connect_oauth (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_meta_connect_oauth ... ok
test_meta_connect_oauth_ignores_username (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_meta_connect_oauth_ignores_username ... ok
test_reconnect_fails_when_invalid (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_reconnect_fails_when_invalid ... ok
test_reconnect_succeeds_after_invalid (tests.connect_tests.TestV1Connection)
tests.connect_tests.TestV1Connection.test_reconnect_succeeds_after_invalid ... ok
test_find_query (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_find_query ... ok
test_non_default_query (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_non_default_query ... ok
test_select_epic (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_select_epic ... ok
test_select_scope (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_select_scope ... ok
test_select_story (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_select_story ... ok
test_select_story_as_generic_asset (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_select_story_as_generic_asset ... ok
test_select_task (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_select_task ... ok
test_sum_query (tests.query_tests.TestV1Query)
tests.query_tests.TestV1Query.test_sum_query ... ok
test_split_attribute (tests.string_utils_tests.TestStringUtils)
tests.string_utils_tests.TestStringUtils.test_split_attribute ... ok
test_quick_close_and_reopen (tests.operation_tests.TestV1Operations)
tests.operation_tests.TestV1Operations.test_quick_close_and_reopen ... ok

----------------------------------------------------------------------
Ran 20 tests in 61.958s

OK

[mtalexan]

@ralittles What's the benefit of using pytest vs testtools? It doesn't integrate with the setup.py (or at least you didn't integrate it), and it only works for Python3.

[mtalexan]

@ralittles I think if the project is going to drop support for python2 and switch over to python3 only, this could be accepted. However you would need to update the setuptools to use pytest instead of testtools for the test target, and drop the old testtools code.
Make it work with the setup.py file as the only test tool, and I'll mark the pull request for when Python2 support is dropped