test: add tests for GitHub releases api

Signed-off-by: Marcin Serwin <[email protected]>

Author: marcin-serwin

tests/test_branch.py

@@ -15,6 +15,8 @@ def fake_urlopen(req: Request) -> BinaryIO:
     url = req.get_full_url()
     if url.endswith("releases.atom"):
         return TEST_ROOT.joinpath("test_branch_releases.atom").open("rb")
+    if url.endswith("/releases?per_page=100"):
+        return TEST_ROOT.joinpath("test_branch_releases.json").open("rb")
     return TEST_ROOT.joinpath("test_branch_commits_master.atom").open("rb")
 
 
@@ -30,3 +32,18 @@ def test_branch(helpers: conftest.Helpers) -> None:
             ).number
             == "1.2.0-unstable-2024-02-19"
         )
+
+
+def test_branch_releases(helpers: conftest.Helpers) -> None:
+    del helpers
+    with unittest.mock.patch("urllib.request.urlopen", fake_urlopen):
+        assert (
+            fetch_latest_version(
+                urlparse("https://github.com/Mic92/nix-update"),
+                VersionPreference.BRANCH,
+                "(.*)",
+                "master",
+                fetcher_args={"use_github_releases": True},
+            ).number
+            == "1.2.0-unstable-2024-02-19"
+        )