Run 3rd-party test suites without excess dependences

- each test method is parametrized with ENV_NAME to
  get unique names in JUnit reports for different
  configurations

Change-Id: I8db671d1687f287dc8ca97782cd7bbdf0eaef988
diff --git a/tcp_tests/settings.py b/tcp_tests/settings.py
index fcbe1a9..9ddabd7 100644
--- a/tcp_tests/settings.py
+++ b/tcp_tests/settings.py
@@ -84,3 +84,7 @@
     '--blacklist-file mcp_pike_lvm_skip.list')
 TEMPEST_TARGET = os.environ.get('TEMPEST_TARGET', 'gtw01')
 SALT_VERSION = os.environ.get('SALT_VERSION', '2017.7')
+
+SL_TEST_REPO = os.environ.get('SL_TEST_REPO',
+                              'https://github.com/Mirantis/stacklight-pytest')
+SL_TEST_COMMIT = os.environ.get('SL_TEST_COMMIT', 'master')