add missing tests

Signed-off-by: Janek Nouvertné <25355197+provinzkraut@users.noreply.github.com>

litestar/response/base.py

@@ -129,11 +129,11 @@ def __init__(
 
     @property
     @deprecated("3.0", kind="property", alternative="encode_headers()")
-    def encoded_headers(self) -> tuple[tuple[bytes, bytes], ...]:
+    def encoded_headers(self) -> list[tuple[bytes, bytes]]:
         return self.encode_headers()
 
-    def encode_headers(self) -> tuple[tuple[bytes, bytes], ...]:
-        return *self.headers.headers, *self._encoded_cookies
+    def encode_headers(self) -> list[tuple[bytes, bytes]]:
+        return [*self.headers.headers, *self._encoded_cookies]
 
     async def after_response(self) -> None:
         """Execute after the response is sent.

tests/unit/test_response/test_base_response.py

@@ -206,3 +206,8 @@ class FooResponse(Response):
 def test_head_response_doesnt_support_content() -> None:
     with pytest.raises(ImproperlyConfiguredException):
         ASGIResponse(body=b"hello world", media_type=MediaType.TEXT, is_head_response=True)
+
+
+def test_asgi_response_encoded_headers() -> None:
+    response = ASGIResponse(encoded_headers=[(b"foo", b"bar")])
+    assert response.encode_headers() == [(b"foo", b"bar")]

tests/unit/test_response/test_file_response.py

@@ -311,3 +311,12 @@ def handler() -> File:
         response = client.get("/")
         assert response.status_code == HTTP_200_OK
         assert [h.lower() for h in response.headers.get_list("last-modified")] == ["foo"]
+
+
+def test_asgi_response_encoded_headers(file: Path) -> None:
+    response = ASGIFileResponse(encoded_headers=[(b"foo", b"bar")], file_path=file)
+    assert response.encode_headers() == [
+        (b"foo", b"bar"),
+        (b"content-type", b"application/octet-stream"),
+        (b"content-disposition", b'attachment; filename=""'),
+    ]

tests/unit/test_response/test_streaming_response.py

@@ -194,3 +194,8 @@ def numbers(minimum: int, maximum: int) -> Iterator[str]:
             assert sse.data == "1\n, \n2\n, \n3\n, \n4\n, \n5"
             assert sse.id == "123"
             assert sse.retry == 1000
+
+
+def test_asgi_response_encoded_headers() -> None:
+    response = ASGIStreamingResponse(encoded_headers=[(b"foo", b"bar")], iterator="")
+    assert response.encode_headers() == [(b"foo", b"bar"), (b"content-type", b"application/json")]