Add pydantic tests via nox

noxfile.py

@@ -23,6 +23,8 @@ def tests(session: Session) -> None:
         "not django",
         "-m",
         "not starlite",
+        "-m",
+        "not pydantic",
         "--ignore=tests/mypy",
         "--ignore=tests/pyright",
     )
@@ -88,6 +90,28 @@ def tests_litestar(session: Session) -> None:
     )
 
 
+@session(python=["3.11"], name="Pydantic tests", tags=["tests"])
+# TODO: add pydantic 2.0 here :)
+@nox.parametrize("pydantic", ["1.10"])
+def test_pydantic(session: Session, pydantic: str) -> None:
+    session.run_always("poetry", "install", external=True)
+
+    session._session.install(f"pydantic~={pydantic}")  # type: ignore
+
+    session.run(
+        "pytest",
+        "--cov=strawberry",
+        "--cov-append",
+        "--cov-report=xml",
+        "-n",
+        "auto",
+        "--showlocals",
+        "-vv",
+        "-m",
+        "pydantic",
+    )
+
+
 @session(python=PYTHON_VERSIONS, name="Mypy tests")
 def tests_mypy(session: Session) -> None:
     session.run_always("poetry", "install", external=True)

pyproject.toml

@@ -159,6 +159,7 @@ markers = [
     "chalice",
     "flask",
     "starlite",
+    "pydantic",
     "flaky",
     "relay",
 ]

tests/conftest.py

@@ -1,12 +1,26 @@
-from typing import Tuple
+import pathlib
+from typing import List, Tuple
 
+import pytest
 
-def pytest_emoji_xfailed(config) -> Tuple[str, str]:
+
+def pytest_emoji_xfailed(config: pytest.Config) -> Tuple[str, str]:
     return "🤷‍♂️ ", "XFAIL 🤷‍♂️ "
 
 
-def pytest_emoji_skipped(config) -> Tuple[str, str]:
+def pytest_emoji_skipped(config: pytest.Config) -> Tuple[str, str]:
     return "🦘 ", "SKIPPED 🦘"
 
 
 pytest_plugins = ("tests.plugins.strawberry_exceptions",)
+
+
+@pytest.hookimpl  # type: ignore
+def pytest_collection_modifyitems(config: pytest.Config, items: List[pytest.Item]):
+    rootdir = pathlib.Path(config.rootdir)  # type: ignore
+
+    for item in items:
+        rel_path = pathlib.Path(item.fspath).relative_to(rootdir)
+
+        if "pydantic" in rel_path.parts:
+            item.add_marker(pytest.mark.pydantic)

tests/schema/test_pydantic.py

@@ -1,7 +1,10 @@
+import pytest
 from pydantic import BaseModel, Field
 
 import strawberry
 
+pytestmark = pytest.mark.pydantic
+
 
 def test_use_alias_as_gql_name():
     class UserModel(BaseModel):