✨ feat(test_login.py): add tests for login functionality

🐛 fix(test_login.py): fix typo in test_login_unsuccessful_wrong_username test

🐛 fix(test_login.py): fix typo in test_login_unsuccessful_wrong_password test

tests/test_login.py

@@ -0,0 +1,47 @@
+import pytest
+from langflow.services.database.models.user import User
+from langflow.services.auth.utils import get_password_hash
+
+
+@pytest.fixture
+def test_user():
+    return User(
+        username="testuser",
+        password=get_password_hash(
+            "testpassword"
+        ),  # Assuming password needs to be hashed
+        is_active=True,
+        is_superuser=False,
+    )
+
+
+def test_login_successful(client, test_user, session):
+    # Adding the test user to the database
+    session.add(test_user)
+    session.commit()
+
+    response = client.post(
+        "api/v1/login", data={"username": "testuser", "password": "testpassword"}
+    )
+    assert response.status_code == 200
+    assert "access_token" in response.json()
+
+
+def test_login_unsuccessful_wrong_username(client):
+    response = client.post(
+        "api/v1/login", data={"username": "wrongusername", "password": "testpassword"}
+    )
+    assert response.status_code == 401
+    assert response.json()["detail"] == "Incorrect username or password"
+
+
+def test_login_unsuccessful_wrong_password(client, test_user, session):
+    # Adding the test user to the database
+    session.add(test_user)
+    session.commit()
+
+    response = client.post(
+        "api/v1/login", data={"username": "testuser", "password": "wrongpassword"}
+    )
+    assert response.status_code == 401
+    assert response.json()["detail"] == "Incorrect username or password"