Use Ruff and fix all its warnings

tests/test_discord_embed.py

@@ -1,68 +1,44 @@
-import os
+from __future__ import annotations
+
+import os
+from pathlib import Path
+from typing import TYPE_CHECKING
 
-from fastapi import Response
 from fastapi.testclient import TestClient
 
-from discord_embed import __version__, settings
+from discord_embed import settings
 from discord_embed.main import app
 
+if TYPE_CHECKING:
+    import httpx
+
 client: TestClient = TestClient(app)
 TEST_FILE: str = "tests/test.mp4"
 
 
-def test_version() -> None:
-    """Test version is correct."""
-    assert __version__ == "1.0.0"
-
-
 def test_domain_ends_with_slash() -> None:
     """Test domain ends with a slash."""
     assert not settings.serve_domain.endswith("/")
 
 
-def test_save_to_disk() -> None:
-    """Test save_to_disk() works."""
-    # TODO: Implement this test. I need to mock the UploadFile object.
-
-
-def test_do_things() -> None:
-    """Test do_things() works."""
-    # TODO: Implement this test. I need to mock the UploadFile object.
-
-
 def test_main() -> None:
     """Test main() works."""
-    data_without_trailing_nl = ""
-    response: Response = client.get("/")
-
-    # Check if response is our HTML.
-    with open("templates/index.html", encoding="utf8") as our_html:
-        data: str = our_html.read()
-
-        # index.html has a trailing newline that we need to remove.
-        if data[-1:] == "\n":
-            data_without_trailing_nl: str = data[:-1]  # type: ignore
-
-    assert response.status_code == 200
-    assert response.text == data_without_trailing_nl
+    response: httpx.Response = client.get("/")
+    assert response.is_success
 
 
 def test_upload_file() -> None:
     """Test if we can upload files."""
-    domain = os.environ["SERVE_DOMAIN"]
-
-    # Remove trailing slash from domain
-    if domain.endswith("/"):
-        domain: str = domain[:-1]  # type: ignore
+    domain = os.environ["SERVE_DOMAIN"].removesuffix("/")
 
     # Upload our video file and check if it returns the html_url.
-    with open(TEST_FILE, "rb") as uploaded_file:
-        response: Response = client.post(
+    with Path.open(Path(TEST_FILE), "rb") as uploaded_file:
+        response: httpx.Response = client.post(
             url="/uploadfiles/",
             files={"file": uploaded_file},
         )
         returned_json = response.json()
         html_url: str = returned_json["html_url"]
 
-    assert response.status_code == 200
+    assert response.is_success
     assert html_url == f"{domain}/test.mp4"