conftest.py must handles TEST_LIBRARY value (#5593)

Author: cbeauchesne

conftest.py

@@ -159,6 +159,9 @@ def pytest_configure(config: pytest.Config) -> None:
     if not config.option.force_execute and "SYSTEM_TESTS_FORCE_EXECUTE" in os.environ:
         config.option.force_execute = os.environ["SYSTEM_TESTS_FORCE_EXECUTE"].strip().split(",")
 
+    if not config.option.library and "TEST_LIBRARY" in os.environ:
+        config.option.library = os.environ["TEST_LIBRARY"].strip()
+
     # clean input
     config.option.force_execute = [item.strip() for item in config.option.force_execute if len(item.strip()) != 0]
 

utils/_context/_scenarios/parametric.py

@@ -130,12 +130,10 @@ def parametrized_tests_metadata(self):
         return self._parametric_tests_confs
 
     def configure(self, config: pytest.Config):
-        if config.option.library:
-            library = config.option.library
-        elif "TEST_LIBRARY" in os.environ:
-            library = os.getenv("TEST_LIBRARY")
-        else:
-            pytest.exit("No library specified, please set -L option", 1)
+        if not config.option.library:
+            pytest.exit("No library specified, please set -L option or use TEST_LIBRARY env var", 1)
+
+        library: str = config.option.library
 
         # get tracer version info building and executing the ddtracer-version.docker file