feat(testing): init pytest fixtures

current_test fixture allows to retrieve the current test context, that is
exposed through the shell environment

tox.ini

@@ -2,7 +2,8 @@
 requires = 
     tox>=4.19
 env_list =
-    py3{8-12}-{unit}
+    unit-py3{9-13}
+    integration-py3{9-13}-pytest8
     lint
     format
 
@@ -34,7 +35,7 @@ deps =
 commands =
     black --check src tests
 
-[testenv:py3{9-13}-unit]
+[testenv:unit-py3{9-13}]
 description = run type check on code base
 labels = unit
 deps = 
@@ -42,3 +43,12 @@ deps =
     pytest
 commands =
     pytest tests/unit --junitxml=test-reports/{env_name}.xml
+
+[testenv:integration-py3{9-13}-pytest8]
+description = run pytest integration tests
+labels = integration
+deps =
+    {[testenv]deps}
+    pytest8: pytest>=8.0,<=9.0
+commands =
+    pytest tests/integration -m pytest --junitxml=test-reports/{env_name}.xml