Handle PytestWarning import error in old Pytest versions

Author: Ivan Ivanou

pytest_reportportal/errors.py

@@ -0,0 +1,11 @@
+"""This module includes exceptions used in the package."""
+
+
+class PytestWarning(UserWarning):
+    """Pytest warning exception.
+
+    This exception is about to stub absent PytestWarning in Pytest versions
+    up to 3.8.0. Get rid of this code once we drop support for Pytest versions
+    below 3.8.0.
+    """
+    pass

pytest_reportportal/listener.py

@@ -112,7 +112,7 @@ def _add_issue_info(self, item, report):
 
         issue_type = "TI" if issue_type is None else issue_type
 
-        if issue_type and self.PyTestService.issue_types \
+        if issue_type and getattr(self.PyTestService, 'issue_types', False) \
                 and (issue_type in self.PyTestService.issue_types):
             if comment:
                 self.issue['comment'] = comment

pytest_reportportal/service.py

@@ -14,9 +14,16 @@
 except pkg_resources.VersionConflict:
     from _pytest.main import File, Item
 
+try:
+    pkg_resources.get_distribution('pytest >= 3.8.0')
+    from _pytest.warning_types import PytestWarning
+except pkg_resources.VersionConflict:
+    from pytest_reportportal.errors import PytestWarning
+
+
 from _pytest.python import Class, Function, Instance, Module
 from _pytest.unittest import TestCaseFunction, UnitTestCase
-from _pytest.warning_types import PytestWarning
+
 from reportportal_client import ReportPortalServiceAsync
 from six import with_metaclass
 from six.moves import queue