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Python

# Ultralytics 🚀 AGPL-3.0 License - https://ultralytics.com/license
import base64
import json
from unittest.mock import MagicMock
import pytest
from actions import cla
def response(status=200, data=None, headers=None):
"""Create a mock HTTP response."""
result = MagicMock(status_code=status)
result.json.return_value = data
result.headers = headers or {}
return result
def action(event_name="pull_request_target"):
"""Create a mock source-repository action."""
result = MagicMock()
result.repository = "ultralytics/example"
result.event_name = event_name
result.event_data = {
"repository": {"id": 123, "full_name": result.repository},
"pull_request": {"number": 7},
}
return result
def ledger_response(rows, sha="old-sha"):
"""Create a Contents API response for the established CLA schema."""
content = base64.b64encode(json.dumps({"signedContributors": rows}).encode()).decode()
return response(data={"content": content, "sha": sha})
def pr_response(user, commits):
"""Create a pull request response."""
return response(data={"user": user, "base": {"sha": "base"}, "head": {"sha": "head"}, "commits": commits})
def commits_response(authors):
"""Create a compare response containing commit authors."""
commits = []
for author in authors:
user = author.get("user")
commits.append(
{
"author": {"id": user["databaseId"], "login": user["login"]} if user else None,
"commit": {"author": {key: value for key, value in author.items() if key != "user"}},
}
)
return response(data={"commits": commits})
def test_contributors_paginates_and_requires_verified_github_identity():
"""Collect linked authors while retaining unverified email identities as unknown."""
source = action()
authors = [
{
"email": "[email protected]",
"user": {"databaseId": 1, "login": "person"},
},
{
"email": "[email protected]",
"user": {"databaseId": 1, "login": "person"},
},
{"name": "Alias", "email": "[email protected]", "user": None},
{"name": "Unknown", "email": "[email protected]", "user": None},
{"user": {"databaseId": 3, "login": "dependabot[bot]"}},
{"user": {"databaseId": 6, "login": "Copilot"}},
{"user": {"databaseId": 4, "login": "other[bot]"}},
{"user": {"databaseId": 5, "login": "bot-attacker"}},
]
source.get.side_effect = [pr_response({"id": 1, "login": "person"}, len(authors)), commits_response(authors)]
assert cla._contributors(source, 7) == [
{"id": 1, "name": "person"},
{"id": None, "name": "Alias"},
{"id": None, "name": "Unknown"},
{"id": 4, "name": "other[bot]"},
{"id": 5, "name": "bot-attacker"},
]
def test_ledger_preserves_existing_schema_and_never_creates_missing_file():
"""Read the established ledger directly without a replacement creation path."""
store = action()
row = {"name": "old", "id": 1, "comment_id": 2, "created_at": "date", "repoId": 3, "pullRequestNo": 4}
store.get.return_value = ledger_response([row])
assert cla._ledger(store) == ({"signedContributors": [row]}, "old-sha")
store.get.assert_called_once_with(
"https://api.github.com/repos/ultralytics/cla/contents/signatures/version1/cla.json",
params={"ref": "cla-signatures"},
)
def test_contributors_fails_when_github_truncates_commits():
"""Fail instead of silently skipping commit authors beyond an API limit."""
source = action()
source.get.side_effect = [
pr_response({"id": 1, "login": "person"}, 2),
commits_response([{"name": "Unknown", "user": None}]),
]
with pytest.raises(RuntimeError, match="returned 1 of 2"):
cla._contributors(source, 7)
def test_contributors_paginates_compare_commits_beyond_pull_request_limit():
"""Collect every author from a pull request with more than 250 commits."""
source = action()
authors = [{"user": {"databaseId": i, "login": f"user-{i}"}} for i in range(2, 258)]
source.get.side_effect = [
pr_response({"id": 1, "login": "opener"}, len(authors)),
commits_response(authors[:100]),
commits_response(authors[100:200]),
commits_response(authors[200:]),
]
assert len(cla._contributors(source, 7)) == 257
assert source.get.call_args_list[-1].kwargs["params"] == {"per_page": 100, "page": 3}
def test_persist_rereads_and_merges_after_conflict():
"""Re-read and merge the signature ledger after a concurrent write conflict."""
source, store = action(), action()
old = {"id": 1}
new = {"name": "new", "id": 2, "comment_id": 3, "created_at": "date", "repoId": 123, "pullRequestNo": 7}
store.get.side_effect = [ledger_response([old], "sha-1"), ledger_response([old], "sha-2")]
store.put.side_effect = [response(409), response(200)]
cla._persist(store, [new], source, 7)
assert store.put.call_count == 2
written = json.loads(base64.b64decode(store.put.call_args.kwargs["json"]["content"]))
assert written["signedContributors"] == [old, new]
assert store.put.call_args.kwargs["json"]["sha"] == "sha-2"
def test_persist_honors_retry_after_for_transient_write(monkeypatch):
"""Back off before re-reading after an ambiguous transient ledger write."""
source, store = action(), action()
new = {"name": "new", "id": 2}
store.get.side_effect = [ledger_response([], "sha-1"), ledger_response([], "sha-2")]
store.put.side_effect = [response(429, headers={"Retry-After": "3"}), response(200)]
sleep = MagicMock()
monkeypatch.setattr("actions.cla.time.sleep", sleep)
cla._persist(store, [new], source, 7)
sleep.assert_called_once_with(3.0)
@pytest.mark.parametrize(
("statuses", "message"),
[([502, 502, 502, 502], "502 Bad Gateway"), ([502, 502, 502, 409], "409 Conflict"), ([422], "422 Unprocessable")],
)
def test_persist_surfaces_final_exhausted_error(monkeypatch, statuses, message):
"""Preserve the final HTTP error when mixed write retries are exhausted."""
source, store = action(), action()
store.get.side_effect = [ledger_response([], f"sha-{i}") for i in range(4)]
failures = [response(status) for status in statuses]
failures[-1].raise_for_status.side_effect = RuntimeError(message)
store.put.side_effect = failures
monkeypatch.setattr("actions.cla.time.sleep", MagicMock())
with pytest.raises(RuntimeError, match=message):
cla._persist(store, [{"name": "new", "id": 2}], source, 7)
assert store.put.call_count == len(statuses)
@pytest.mark.parametrize(
"body", [cla.SIGN_COMMENT, f"{cla.SIGN_COMMENT}\r\n", f"{cla.SIGN_COMMENT} ", cla.SIGN_COMMENT.lower()]
)
def test_run_records_exact_sentence_and_updates_legacy_comment(body):
"""Persist a signature despite trailing whitespace or casing."""
source, store = action(), action()
signing = {
"id": 30,
"body": body,
"created_at": "date",
"user": {"id": 2, "login": "new", "type": "User"},
}
bot = {"id": 40, "body": "Posted by the CLA Assistant Lite bot", "user": {"login": cla.BOT_LOGIN}}
source.get.side_effect = [
pr_response({"id": 2, "login": "new"}, 1),
commits_response([{"user": {"databaseId": 2, "login": "new"}}]),
response(data=[signing, bot]),
]
store.get.side_effect = [ledger_response([]), ledger_response([])]
store.put.return_value = response(200)
cla.run(source, store)
stored = json.loads(base64.b64decode(store.put.call_args.kwargs["json"]["content"]))["signedContributors"]
assert stored == [
{"name": "new", "id": 2, "comment_id": 30, "created_at": "date", "repoId": 123, "pullRequestNo": 7}
]
assert cla.SIGN_COMMENT in cla._comment_body([], [{"id": 2, "name": "new"}], [])
source.patch.assert_called_once()
assert "All Contributors have signed" in source.patch.call_args.kwargs["json"]["body"]
def test_run_stays_silent_when_all_contributors_already_signed():
"""Skip the status comment entirely when nobody needed to sign."""
source, store = action(), action()
source.get.side_effect = [
pr_response({"id": 1, "login": "signed"}, 1),
commits_response([{"user": {"databaseId": 1, "login": "signed"}}]),
response(data=[]),
]
store.get.return_value = ledger_response([{"id": 1}])
cla.run(source, store)
source.post.assert_not_called()
source.patch.assert_not_called()
@pytest.mark.parametrize(
"body",
[
f"could I write {cla.SIGN_COMMENT}?",
f"> {cla.SIGN_COMMENT}",
f'- **Sign the CLA**: sign by writing "{cla.SIGN_COMMENT}" in a new message.',
],
)
def test_run_rejects_similar_sentence_and_keeps_hard_failure(body):
"""Reject a quoted or embedded sentence and leave the CLA gate failed."""
source, store = action(), action()
user = {"id": 2, "login": "new", "type": "User"}
source.get.side_effect = [
pr_response({"id": 2, "login": "new"}, 1),
commits_response([{"user": {"databaseId": 2, "login": "new"}}]),
response(data=[{"id": 30, "body": body, "created_at": "date", "user": user}]),
response(data=[{"id": 40, "body": cla.COMMENT_MARKER, "user": {"login": cla.BOT_LOGIN}}]),
]
store.get.return_value = ledger_response([])
source.post.return_value = response(201)
with pytest.raises(RuntimeError, match="must sign"):
cla.run(source, store)
store.put.assert_not_called()
assert cla.SIGN_COMMENT in source.post.call_args.kwargs["json"]["body"]
def test_run_fails_unlinked_email_author():
"""Require commit authors with unlinked emails to link a GitHub account."""
source, store = action(), action()
source.get.side_effect = [
pr_response({"id": 2, "login": "new"}, 1),
commits_response([{"name": "Unknown", "email": "[email protected]", "user": None}]),
response(data=[]),
response(data=[{"id": 40, "body": cla.COMMENT_MARKER, "user": {"login": cla.BOT_LOGIN}}]),
]
store.get.return_value = ledger_response([])
source.post.return_value = response(201)
with pytest.raises(RuntimeError, match="must sign"):
cla.run(source, store)
assert "not linked to a GitHub account" in source.post.call_args.kwargs["json"]["body"]
def test_run_requires_pr_opener_when_commit_identity_is_already_signed():
"""Require the submitter to sign even when forged commit metadata names a signer."""
source, store = action(), action()
source.get.side_effect = [
pr_response({"id": 9, "login": "submitter"}, 1),
commits_response([{"user": {"databaseId": 1, "login": "signed-author"}}]),
response(data=[]),
response(data=[{"id": 40, "body": cla.COMMENT_MARKER, "user": {"login": cla.BOT_LOGIN}}]),
]
store.get.return_value = ledger_response([{"id": 1}])
with pytest.raises(RuntimeError, match="must sign"):
cla.run(source, store)
assert "@submitter" in source.patch.call_args.kwargs["json"]["body"]
def test_create_comment_confirms_ambiguous_write_before_failing():
"""Treat an ambiguous comment response as success only when the marker exists."""
source = action()
source.post.return_value = response(502)
source.get.return_value = response(data=[{"id": 40, "body": cla.COMMENT_MARKER, "user": {"login": cla.BOT_LOGIN}}])
cla._update_comment(source, 7, [], "body")
source.get.assert_called_once()
source.post.return_value.raise_for_status.assert_not_called()
source.patch.assert_called_once()
def test_update_comment_ignores_marker_from_another_bot():
"""Adopt only comments owned by the authenticated GitHub Actions bot."""
source = action()
source.post.return_value = response(201)
source.get.return_value = response(data=[{"id": 41, "body": cla.COMMENT_MARKER, "user": {"login": cla.BOT_LOGIN}}])
other = [{"id": 40, "body": cla.COMMENT_MARKER, "user": {"login": "other[bot]"}}]
cla._update_comment(source, 7, other, "body")
source.post.assert_called_once()
assert source.patch.call_args.args[0].endswith("/issues/comments/41")
def test_read_retries_transient_responses(monkeypatch):
"""Retry a transient GitHub read without changing unrelated API clients."""
source = action()
source.get.side_effect = [response(502), response(200, {"ok": True})]
monkeypatch.setattr("actions.cla.time.sleep", MagicMock())
assert cla._read(source, "get", "url").json() == {"ok": True}
assert source.get.call_count == 2
def test_rerun_uses_exact_pr_head(monkeypatch):
"""Rerun the failed CLA workflow associated with the live PR head only."""
source = action("issue_comment")
monkeypatch.setenv("GITHUB_WORKFLOW_REF", "ultralytics/example/.github/workflows/cla.yml@refs/heads/main")
source.get.side_effect = [
response(data={"head": {"ref": "feature", "sha": "exact"}}),
response(
data={
"workflow_runs": [
{"id": 1, "head_sha": "stale", "conclusion": "failure"},
{"id": 2, "head_sha": "exact", "conclusion": "failure"},
]
}
),
]
cla._rerun_pr_check(source, 7)
assert source.post.call_args.args[0].endswith("/actions/runs/2/rerun")
def test_rerun_leaves_queued_exact_head_to_complete(monkeypatch):
"""Let an incomplete exact-head check run after per-PR concurrency releases."""
source = action("issue_comment")
monkeypatch.setenv("GITHUB_WORKFLOW_REF", "ultralytics/example/.github/workflows/cla.yml@refs/heads/main")
source.get.side_effect = [
response(data={"head": {"ref": "feature", "sha": "exact"}}),
response(data={"workflow_runs": [{"id": 2, "head_sha": "exact", "conclusion": None}]}),
]
cla._rerun_pr_check(source, 7)
source.post.assert_not_called()
def test_read_paginate_and_ledger_guards(monkeypatch):
"""Surface exhausted read retries, oversized collections, and invalid ledger schemas."""
source = action()
monkeypatch.setattr("actions.cla.time.sleep", MagicMock())
source.get.return_value = response(502)
source.get.return_value.raise_for_status.side_effect = RuntimeError("502")
with pytest.raises(RuntimeError, match="502"):
cla._read(source, "get", "url")
assert source.get.call_count == 4
source.get.return_value = response(data=[{}] * 100)
with pytest.raises(RuntimeError, match="exceeded 10,000 items"):
cla._paginate(source, "url")
source.get.return_value = ledger_response({})
with pytest.raises(TypeError, match="invalid schema"):
cla._ledger(source)
def test_persist_comment_and_rerun_edge_cases(monkeypatch):
"""Skip already-signed records, fail missing created comments, and require a PR-head run to rerun."""
source, store = action(), action()
store.get.return_value = ledger_response([{"id": 2}])
cla._persist(store, [{"name": "new", "id": 2}], source, 7)
store.put.assert_not_called()
source.post.return_value = response(201)
source.get.return_value = response(data=[])
with pytest.raises(RuntimeError, match="did not return"):
cla._update_comment(source, 7, [], "body")
source.get.reset_mock()
cla._rerun_pr_check(source, 7)
source.get.assert_not_called()
source = action("issue_comment")
monkeypatch.setenv("GITHUB_WORKFLOW_REF", "ultralytics/example/.github/workflows/cla.yml@refs/heads/main")
source.get.side_effect = [
response(data={"head": {"ref": "feature", "sha": "exact"}}),
response(data={"workflow_runs": []}),
]
with pytest.raises(RuntimeError, match="Could not find"):
cla._rerun_pr_check(source, 7)
def test_main_builds_source_and_ledger_actions(monkeypatch):
"""Run the CLA check with separate source and ledger tokens from the environment."""
monkeypatch.setenv("GITHUB_TOKEN", "token")
monkeypatch.setenv("CLA_TOKEN", "cla-token")
source, store = action(), action()
run = MagicMock()
monkeypatch.setattr("actions.cla.run", run)
monkeypatch.setattr("actions.cla.Action", MagicMock(side_effect=[source, store]))
cla.main()
assert cla.Action.call_args_list[0].kwargs == {"token": "token"}
assert cla.Action.call_args_list[1].kwargs == {
"token": "cla-token",
"event_name": source.event_name,
"event_data": source.event_data,
}
run.assert_called_once_with(source, store)