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test: add repo_readme edge coverage #117

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35 changes: 35 additions & 0 deletions tests/unit/test_github_tools.py
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Original file line number Diff line number Diff line change
Expand Up @@ -290,6 +290,41 @@ def rest_text(self, path: str) -> GitHubResponse:
self.assertEqual("owner/project", readme.full_name)
self.assertIn("# Project", readme.content)

def test_repo_readme_reports_rest_failure(self) -> None:
class FakeClient:
def rest_text(self, path: str) -> GitHubResponse:
return GitHubResponse(ok=False, source="httpx", error="README not found")

with patch("contribarena.tools.repo_readme.GitHubClient", FakeClient):
readme = repo_get_readme(_candidate())

self.assertFalse(readme.success)
self.assertEqual("owner/project", readme.full_name)
self.assertEqual("README not found", readme.error)
self.assertEqual("", readme.content)

def test_repo_readme_enforces_minimum_content_limit(self) -> None:
class FakeClient:
def rest_text(self, path: str) -> GitHubResponse:
return GitHubResponse(ok=True, source="httpx", data="a" * 600)

with patch("contribarena.tools.repo_readme.GitHubClient", FakeClient):
readme = repo_get_readme(_candidate(), max_chars=10)

self.assertTrue(readme.success)
self.assertEqual(("a" * 500) + "...[truncated]", readme.content)

def test_repo_readme_enforces_maximum_content_limit(self) -> None:
class FakeClient:
def rest_text(self, path: str) -> GitHubResponse:
return GitHubResponse(ok=True, source="httpx", data="b" * 20_100)

with patch("contribarena.tools.repo_readme.GitHubClient", FakeClient):
readme = repo_get_readme(_candidate(), max_chars=50_000)

self.assertTrue(readme.success)
self.assertEqual(("b" * 20_000) + "...[truncated]", readme.content)

def test_repo_pr_tools_normalize_pr_payloads(self) -> None:
class FakeClient:
def gh_json(self, args: list[str]) -> GitHubResponse:
Expand Down