✅ Simplify tests for code examples, one test file for multiple variants (#1664)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

tests/test_tutorial/test_code_structure/test_tutorial002.py

@@ -1,8 +1,11 @@
-from unittest.mock import patch
+import importlib
+from dataclasses import dataclass
+from types import ModuleType
 
+import pytest
 from sqlmodel import create_engine
 
-from ...conftest import get_testing_print_function
+from ...conftest import PrintMock, needs_py39, needs_py310
 
 expected_calls = [
     [
@@ -22,16 +25,34 @@ expected_calls = [
 ]
 
 
-def test_tutorial():
-    from docs_src.tutorial.code_structure.tutorial002 import app, database
+@dataclass
+class Modules:
+    app: ModuleType
+    database: ModuleType
 
-    database.sqlite_url = "sqlite://"
-    database.engine = create_engine(database.sqlite_url)
-    app.engine = database.engine
-    calls = []
 
-    new_print = get_testing_print_function(calls)
+@pytest.fixture(
+    name="modules",
+    params=[
+        "tutorial002",
+        pytest.param("tutorial002_py39", marks=needs_py39),
+        pytest.param("tutorial002_py310", marks=needs_py310),
+    ],
+)
+def get_modules(request: pytest.FixtureRequest) -> Modules:
+    app_module = importlib.import_module(
+        f"docs_src.tutorial.code_structure.{request.param}.app"
+    )
+    database_module = importlib.import_module(
+        f"docs_src.tutorial.code_structure.{request.param}.database"
+    )
+    database_module.sqlite_url = "sqlite://"
+    database_module.engine = create_engine(database_module.sqlite_url)
+    app_module.engine = database_module.engine
 
-    with patch("builtins.print", new=new_print):
-        app.main()
-    assert calls == expected_calls
+    return Modules(app=app_module, database=database_module)
+
+
+def test_tutorial(print_mock: PrintMock, modules: Modules):
+    modules.app.main()
+    assert print_mock.calls == expected_calls

tests/test_tutorial/test_code_structure/test_tutorial002_py310.py

@@ -1,38 +0,0 @@
-from unittest.mock import patch
-
-from sqlmodel import create_engine
-
-from ...conftest import get_testing_print_function, needs_py310
-
-expected_calls = [
-    [
-        "Created hero:",
-        {
-            "id": 1,
-            "name": "Deadpond",
-            "age": None,
-            "secret_name": "Dive Wilson",
-            "team_id": 1,
-        },
-    ],
-    [
-        "Hero's team:",
-        {"name": "Z-Force", "headquarters": "Sister Margaret's Bar", "id": 1},
-    ],
-]
-
-
-@needs_py310
-def test_tutorial():
-    from docs_src.tutorial.code_structure.tutorial002_py310 import app, database
-
-    database.sqlite_url = "sqlite://"
-    database.engine = create_engine(database.sqlite_url)
-    app.engine = database.engine
-    calls = []
-
-    new_print = get_testing_print_function(calls)
-
-    with patch("builtins.print", new=new_print):
-        app.main()
-    assert calls == expected_calls

tests/test_tutorial/test_code_structure/test_tutorial002_py39.py

@@ -1,38 +0,0 @@
-from unittest.mock import patch
-
-from sqlmodel import create_engine
-
-from ...conftest import get_testing_print_function, needs_py39
-
-expected_calls = [
-    [
-        "Created hero:",
-        {
-            "id": 1,
-            "name": "Deadpond",
-            "age": None,
-            "secret_name": "Dive Wilson",
-            "team_id": 1,
-        },
-    ],
-    [
-        "Hero's team:",
-        {"name": "Z-Force", "headquarters": "Sister Margaret's Bar", "id": 1},
-    ],
-]
-
-
-@needs_py39
-def test_tutorial():
-    from docs_src.tutorial.code_structure.tutorial002_py39 import app, database
-
-    database.sqlite_url = "sqlite://"
-    database.engine = create_engine(database.sqlite_url)
-    app.engine = database.engine
-    calls = []
-
-    new_print = get_testing_print_function(calls)
-
-    with patch("builtins.print", new=new_print):
-        app.main()
-    assert calls == expected_calls