Test that the shipped data stays under 100 MiB and that publish_release.py stops on a tag at another commit, both in the gate

release-tooling/publish_release_test.py

@@ -0,0 +1,78 @@
+import io
+import os
+import tempfile
+import unittest
+import urllib.error
+from contextlib import redirect_stderr, redirect_stdout
+from unittest import mock
+
+import publish_release
+
+SHA = "a" * 40
+OTHER = "b" * 40
+
+
+def not_found(path):
+	return urllib.error.HTTPError(path, 404, "Not Found", None, None)
+
+
+class TagGuard(unittest.TestCase):
+	def setUp(self):
+		cwd = os.getcwd()
+		dir = tempfile.TemporaryDirectory()
+		self.addCleanup(dir.cleanup)
+		os.chdir(dir.name)
+		self.addCleanup(os.chdir, cwd)
+		with open("CHANGELOG.md", "w", encoding="utf-8") as f:
+			f.write("# Changelog\n\n## [1.2.3]\n\n- A change.\n")
+		env = mock.patch.dict(os.environ, {"SHA": SHA})
+		env.start()
+		self.addCleanup(env.stop)
+
+	def publish(self, responses):
+		created = []
+
+		def request(path, data=None):
+			if data is not None:
+				created.append(data)
+				return {"html_url": "https://forge.example/release"}
+			response = responses.get(path)
+			if response is None:
+				raise not_found(path)
+			return response
+
+		with mock.patch.object(publish_release, "request", request), \
+			redirect_stdout(io.StringIO()), redirect_stderr(io.StringIO()):
+			code = publish_release.main()
+		return code, created
+
+	def test_a_tag_at_another_commit_publishes_nothing(self):
+		code, created = self.publish({"git/ref/tags/v1.2.3": {"object": {"sha": OTHER, "type": "commit"}}})
+		self.assertEqual((code, created), (1, []))
+
+	def test_an_annotated_tag_at_another_commit_publishes_nothing(self):
+		code, created = self.publish({
+			"git/ref/tags/v1.2.3": {"object": {"sha": "c" * 40, "type": "tag"}},
+			"git/tags/" + "c" * 40: {"object": {"sha": OTHER, "type": "commit"}},
+		})
+		self.assertEqual((code, created), (1, []))
+
+	def test_an_annotated_tag_at_this_commit_publishes(self):
+		code, created = self.publish({
+			"git/ref/tags/v1.2.3": {"object": {"sha": "c" * 40, "type": "tag"}},
+			"git/tags/" + "c" * 40: {"object": {"sha": SHA, "type": "commit"}},
+		})
+		self.assertEqual((code, [c["tag_name"] for c in created]), (0, ["v1.2.3"]))
+
+	def test_no_tag_publishes_one_at_this_commit(self):
+		code, created = self.publish({})
+		self.assertEqual(code, 0)
+		self.assertEqual(created, [{"body": "- A change.", "name": "v1.2.3", "tag_name": "v1.2.3", "target_commitish": SHA}])
+
+	def test_a_published_release_publishes_nothing(self):
+		code, created = self.publish({"releases/tags/v1.2.3": {"html_url": "https://forge.example/release"}})
+		self.assertEqual((code, created), (0, []))
+
+
+if __name__ == "__main__":
+	unittest.main()