init here

autotest/cases/case_03_users_login_success.py

@@ -0,0 +1,18 @@
+TEST_NAME = "users:login success"
+
+
+def run(context) -> None:
+    payload = {
+        context.K_USERNAME: context.teacher_username,
+        context.K_PASSWORD: context.teacher_password,
+    }
+    status, body, _ = context.send_request(
+        "POST",
+        "/api/users/login",
+        body=payload,
+    )
+    context.expect(status == 200, f"expected 200, got {status}")
+    context.expect(
+        body == context.MESSAGE_LOGIN_OK,
+        f"unexpected login body: {body!r}",
+    )