feat: 新增技能扩展N11一章相关示例源码

code/newsletter/N11/tests/conftest.py

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+import dataclasses
+
+import pytest
+
+
+@dataclasses.dataclass
+class Connection:
+    def execute(self, sql: str):
+        print(f"execute {sql}...")
+        return True
+
+    def close(self):
+        print(f"\ndisconnect {repr(self)} object...")
+
+
+@dataclasses.dataclass
+class Database:
+    dialect: str = "sqlite"
+
+    def connect(self):
+        return Connection()
+
+    def close(self):
+        print(f"\ndisconnect {repr(self)} object...")
+
+
+@pytest.fixture()
+def sqlite():
+    db = Database()
+    conn = db.connect()
+    try:
+        yield conn
+    finally:
+        conn.close()
+        db.close()
+
+
+@pytest.fixture()
+def mysql():
+    db = Database(dialect="mysql")
+    conn = db.connect()
+    try:
+        yield conn
+    finally:
+        conn.close()
+        db.close()
+
+
+@pytest.fixture(params=["sqlite", "mysql"])
+def database(request):
+    db = Database(dialect=request.param)
+    conn = db.connect()
+    try:
+        yield conn
+    finally:
+        conn.close()
+        db.close()
+
+
+@pytest.fixture()
+def gender():
+    return ["male", "female"]
+
+
+@pytest.fixture()
+def cpu():
+    return "cpu"
+
+
+@pytest.fixture()
+def device(cpu):
+    return f"the device with {cpu}"
+
+
+@pytest.fixture(scope="class")
+def logger():
+    print("\nstart recording...")
+    yield
+    print("\nend recording...")