Write most backend tests

tests/test_authentication.py

@@ -0,0 +1,139 @@
+import sys
+
+import pytest
+from fastapi.testclient import TestClient
+
+sys.path.append("..")
+
+from src.main import app, get_db
+from tests.config.database import clear_db, override_get_db
+
+app.dependency_overrides[get_db] = override_get_db
+
+client = TestClient(app)
+
+username1 = "user1"
+username2 = "user2"
+password = "password"
+avatar = "lion"
+
+
+@pytest.mark.asyncio
+async def test_register():
+    """LEAVE THIS TEST AT THE TOP OF THE FILE!"""
+    """Test the register endpoint"""
+    clear_db()
+
+    response = client.post(
+        "/register",
+        headers={"Content-Type": "application/json"},
+        json={"username": username1, "password": password, "avatar": avatar},
+    )
+
+    assert response.status_code == 200
+    assert len(response.json()["access_token"]) > 0
+
+
+@pytest.mark.asyncio
+async def test_register_duplicate_name_should_fail():
+    """Test whether registering a user with an existing username fails"""
+    response = client.post(
+        "/register",
+        headers={"Content-Type": "application/json"},
+        json={"username": username1, "password": password, "avatar": avatar},
+    )
+
+    assert response.status_code == 400
+    assert "access_token" not in response.json()
+
+
+@pytest.mark.asyncio
+async def test_register_without_username_should_fail():
+    """Test whether registering a user without passing a username fails"""
+    response = client.post(
+        "/register",
+        headers={"Content-Type": "application/json"},
+        json={"password": password, "avatar": avatar},
+    )
+
+    assert response.status_code == 422
+    assert "access_token" not in response.json()
+
+
+@pytest.mark.asyncio
+async def test_register_without_password_should_fail():
+    """Test whether registering a user without passing a password fails"""
+    response = client.post(
+        "/register",
+        headers={"Content-Type": "application/json"},
+        json={"username": username2, "avatar": avatar},
+    )
+
+    assert response.status_code == 422
+    assert "access_token" not in response.json()
+
+
+@pytest.mark.asyncio
+async def test_register_without_avatar_should_fail():
+    """Test whether registering a user without passing an avatar fails"""
+    response = client.post(
+        "/register",
+        headers={"Content-Type": "application/json"},
+        json={"username": username2, "password": password},
+    )
+
+    # Not ideal that this is 400 instead of 422, but had no other choice than to give this field a default value
+    assert response.status_code == 400
+    assert "access_token" not in response.json()
+
+
+@pytest.mark.asyncio
+async def test_login():
+    """Test the login endpoint"""
+    response = client.post(
+        "/login",
+        headers={"Content-Type": "application/json"},
+        json={"username": username1, "password": password},
+    )
+
+    assert response.status_code == 200
+    assert len(response.json()["access_token"]) > 0
+
+
+@pytest.mark.asyncio
+async def test_login_wrong_password_should_fail():
+    wrong_password = password + "extra characters"
+    response = client.post(
+        "/login",
+        headers={"Content-Type": "application/json"},
+        json={"username": username1, "password": wrong_password},
+    )
+
+    assert response.status_code == 401
+    assert "access_token" not in response.json()
+
+
+@pytest.mark.asyncio
+async def test_login_without_username_should_fail():
+    """Test whether logging in without passing a username fails"""
+    response = client.post(
+        "/login",
+        headers={"Content-Type": "application/json"},
+        json={"username": username1},
+    )
+
+    assert response.status_code == 422
+    assert "access_token" not in response.json()
+
+
+@pytest.mark.asyncio
+async def test_login_without_password_should_fail():
+    """Test whether logging in without passing a password fails"""
+    response = client.post(
+        "/login",
+        headers={"Content-Type": "application/json"},
+        json={"username": username1},
+    )
+
+    assert response.status_code == 422
+    assert "access_token" not in response.json()