test: add test cases to version tests

tests/test_version.py

@@ -1,19 +1,71 @@
+from typing import Any, Tuple
+
 import packaging
+import pytest
 from packaging.version import Version
 
-from graphql_server.version import version, version_info
-
-RELEASE_LEVEL = {"alpha": "a", "beta": "b", "rc": "rc", "final": None}
+from graphql_server.version import (
+    version as VERSION,
+    version_info as VERSION_INFO,
+)
 
+VersionInfoType = Tuple[int, int, int, str, int]
 
-parsed_version = Version(version)
-
+RELEASE_LEVEL = {"alpha": "a", "beta": "b", "rc": "rc", "final": None}
 
-def test_valid_version() -> None:
+VERSION_AND_VERSION_INFO = [
+    (
+        "1.2.3",
+        (1, 2, 3, "final", 0),
+    ),
+    (
+        "1.2.3a4",
+        (1, 2, 3, "alpha", 4),
+    ),
+    (
+        "1.2.3b4",
+        (1, 2, 3, "beta", 4),
+    ),
+    (
+        "12.34.56rc789",
+        (12, 34, 56, "rc", 789),
+    ),
+    (
+        VERSION,
+        VERSION_INFO,
+    ),
+]
+
+
+@pytest.fixture(params=VERSION_AND_VERSION_INFO)
+def version_and_version_info(
+    request: pytest.FixtureRequest,
+) -> Tuple[str, VersionInfoType]:
+    return request.param
+
+
+@pytest.fixture
+def version(version_and_version_info: Tuple[str, VersionInfoType]) -> str:
+    return version_and_version_info[0]
+
+
+@pytest.fixture
+def version_info(
+    version_and_version_info: Tuple[str, VersionInfoType]
+) -> VersionInfoType:
+    return version_and_version_info[1]
+
+
+@pytest.fixture
+def parsed_version(version: str) -> Version:
+    return Version(version)
+
+
+def test_valid_version(version: str) -> None:
     packaging.version.parse(version)
 
 
-def test_valid_version_info() -> None:
+def test_valid_version_info(version_info: Any) -> None:
     """version_info has to be a tuple[int, int, int, str, int]"""
     assert isinstance(version_info, tuple)
     assert len(version_info) == 5
@@ -26,17 +78,19 @@ def test_valid_version_info() -> None:
     assert isinstance(serial, int)
 
 
-def test_valid_version_release_level() -> None:
+def test_valid_version_release_level(parsed_version: Version) -> None:
     if parsed_version.pre is not None:
         valid_release_levels = {v for v in RELEASE_LEVEL.values() if v is not None}
         assert parsed_version.pre[0] in valid_release_levels
 
 
-def test_valid_version_info_release_level() -> None:
+def test_valid_version_info_release_level(version_info: VersionInfoType) -> None:
     assert version_info[3] in RELEASE_LEVEL.keys()
 
 
-def test_version_same_as_version_info() -> None:
+def test_version_same_as_version_info(
+    parsed_version: Version, version_info: VersionInfoType
+) -> None:
     assert (
         parsed_version.major,
         parsed_version.minor,