diff --git a/pyproject.toml b/pyproject.toml
index ad4c8b7..58d1886 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,6 +38,7 @@ module = ["cdsapi.*", "multiurl.*", "py.*"]
 # Same as Black.
 indent-width = 4
 line-length = 88
+target-version = "py38"
 
 [tool.ruff.lint]
 ignore = [
@@ -53,7 +54,9 @@ select = [
   # isort
   "I",
   # pydocstyle
-  "D"
+  "D",
+  # flake8-future-annotations
+  "FA"
 ]
 
 [tool.ruff.lint.pycodestyle]
diff --git a/tests/integration_test_40_results.py b/tests/integration_test_40_results.py
index 13f5968..49ba920 100644
--- a/tests/integration_test_40_results.py
+++ b/tests/integration_test_40_results.py
@@ -1,5 +1,4 @@
 import contextlib
-import os
 import pathlib
 import random
 from typing import Any
@@ -22,19 +21,6 @@ def test_results_asset(results: Results) -> None:
     assert results.asset["file:size"] == 1
 
 
-@pytest.mark.parametrize("target", ("dummy.grib", None))
-def test_results_download(
-    monkeypatch: pytest.MonkeyPatch,
-    results: Results,
-    tmp_path: pathlib.Path,
-    target: str | None,
-) -> None:
-    monkeypatch.chdir(tmp_path)
-    actual_target = results.download(target=target)
-    assert (actual_target != target) if target is None else (actual_target == target)
-    assert os.path.getsize(actual_target) == 1
-
-
 @pytest.mark.parametrize("progress", [True, False])
 def test_results_progress(
     api_root_url: str,
diff --git a/tests/integration_test_50_profile.py b/tests/integration_test_50_profile.py
index 264bd6b..5ebafa9 100644
--- a/tests/integration_test_50_profile.py
+++ b/tests/integration_test_50_profile.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from typing import Literal
 
 import pytest
diff --git a/tests/test_40_results.py b/tests/test_40_results.py
new file mode 100644
index 0000000..a04ca20
--- /dev/null
+++ b/tests/test_40_results.py
@@ -0,0 +1,93 @@
+from __future__ import annotations
+
+import os
+import pathlib
+
+import pytest
+import responses
+
+from cads_api_client import Results
+
+RESULTS_URL = "http://localhost:8080/api/retrieve/v1/jobs/9bfc1362-2832-48e1-a235-359267420bb2/results"
+RESULTS_JSON = {
+    "asset": {
+        "value": {
+            "type": "application/x-grib",
+            "href": "http://httpbin.org/bytes/1",
+            "file:size": 1,
+        }
+    }
+}
+
+
+@pytest.fixture
+def results() -> Results:
+    with responses.RequestsMock() as rsps:
+        rsps.add(
+            responses.GET,
+            RESULTS_URL,
+            json=RESULTS_JSON,
+            status=200,
+            content_type="application/json",
+        )
+        results = Results.from_request(
+            "get",
+            RESULTS_URL,
+            headers={},
+            session=None,
+            retry_options={"maximum_tries": 1},
+            request_options={},
+            download_options={},
+            sleep_max=120,
+            cleanup=False,
+            log_callback=None,
+        )
+    return results
+
+
+@pytest.mark.parametrize(
+    "target,expected",
+    [
+        ("dummy.grib", "dummy.grib"),
+        (None, "1"),
+    ],
+)
+def test_results_download(
+    monkeypatch: pytest.MonkeyPatch,
+    results: Results,
+    tmp_path: pathlib.Path,
+    target: str | None,
+    expected: str,
+) -> None:
+    monkeypatch.chdir(tmp_path)
+    actual = results.download(target=target)
+    assert actual == expected
+    assert os.path.getsize(actual) == 1
+
+
+def test_results_asset(results: Results) -> None:
+    assert results.asset == {
+        "file:size": 1,
+        "href": "http://httpbin.org/bytes/1",
+        "type": "application/x-grib",
+    }
+
+
+def test_results_content_length(results: Results) -> None:
+    assert results.content_length == 1
+
+
+def test_results_content_type(results: Results) -> None:
+    assert results.content_type == "application/x-grib"
+
+
+def test_results_json(results: Results) -> None:
+    assert results.json == RESULTS_JSON
+
+
+def test_results_location(results: Results) -> None:
+    assert results.location == "http://httpbin.org/bytes/1"
+
+
+def test_results_url(results: Results) -> None:
+    assert results.url == RESULTS_URL