feat: complete e2e tests

Pipfile

@@ -15,6 +15,7 @@ rich = "*"
 pylint = "*"
 mypy = "*"
 pytest = "*"
+httpx = "*"
 
 [requires]
 python_version = "3.12"

app/routers/users.py

@@ -45,6 +45,7 @@ async def users_list(
     return storage.all()
 
 
+@router.post("/", tags=["users"])
 async def users_new(
     storage: typing.Annotated[services.Storage, fastapi.Depends()],
     user: User,

app/test_main.py

@@ -0,0 +1,71 @@
+"""
+End-to-end testings for APIs.
+"""
+
+from fastapi.testclient import TestClient
+
+from .main import app
+
+client = TestClient(app)
+
+
+def test_users_create_and_list():
+    """
+    Create valid users and make sure it returns in the users list.
+    """
+
+    future_users = [
+        {
+            "first_name": "Parham",
+            "last_name": "Alvani",
+            "age": 30,
+        },
+        {
+            "first_name": "Elahe",
+            "last_name": "Dastan",
+            "age": 20,
+        },
+        {
+            "first_name": "Seyed Parham",
+            "last_name": "Alvani",
+            "age": 30,
+        },
+    ]
+
+    for user in future_users:
+        response = client.post(
+            "/users",
+            json=user,
+        )
+        assert response.status_code == 200
+        assert response.json() == user
+
+    response = client.get("/users")
+    assert response.status_code == 200
+    users = response.json()
+    assert len(users) == len(future_users)
+    assert users == future_users
+
+
+def test_users_bad_create():
+    """
+    Create a invalid user and make sure it returns error.
+    """
+
+    for user in [
+        {
+            "first_name": "Parham1",
+            "last_name": "Alvani",
+            "age": 30,
+        },
+        {
+            "first_name": "Parham",
+            "last_name": "Alvani",
+            "age": -30,
+        },
+    ]:
+        response = client.post(
+            "/users",
+            json=user,
+        )
+        assert response.status_code == 422