DEVX-65: refactor: consolidate publish.yml into post-merge.yml

tests/unit/test_release.py

@@ -1,5 +1,7 @@
 """Unit tests for scripts/ci/release.py."""
 
+import os
+from pathlib import Path
 from unittest.mock import MagicMock, patch
 
 import click
@@ -815,11 +817,23 @@ class TestCommitReleaseChanges:
 class TestCreateAndPushTag:
     @patch("devx.ci.release.tag_exists", return_value=False)
     @patch("devx.ci.release.run_cmd")
-    def test_creates_tag(self, mock_run_cmd: MagicMock, mock_tag_exists: MagicMock) -> None:
-        create_and_push_tag("0.2.0", "changelog", dry_run=False)
+    def test_creates_tag(self, mock_run_cmd: MagicMock, mock_tag_exists: MagicMock, tmp_path: Path) -> None:
+        github_output = tmp_path / "output.txt"
+        with patch.dict(os.environ, {"GITHUB_OUTPUT": str(github_output)}):
+            create_and_push_tag("0.2.0", "changelog", dry_run=False)
         calls = [c.args[0] for c in mock_run_cmd.call_args_list]
         assert ["git", "tag", "-a", "v0.2.0", "-m", "Release v0.2.0\n\nchangelog"] in calls
         assert ["git", "push", "origin", "refs/tags/v0.2.0"] in calls
+        assert github_output.read_text() == "tag=v0.2.0\n"
+
+    @patch("devx.ci.release.tag_exists", return_value=False)
+    @patch("devx.ci.release.run_cmd")
+    def test_no_github_output_skips_write(self, mock_run_cmd: MagicMock, mock_tag_exists: MagicMock) -> None:
+        with patch.dict(os.environ, {}, clear=True):
+            create_and_push_tag("0.2.0", "changelog", dry_run=False)
+        # Should still create tag, just not write GITHUB_OUTPUT
+        calls = [c.args[0] for c in mock_run_cmd.call_args_list]
+        assert ["git", "tag", "-a", "v0.2.0", "-m", "Release v0.2.0\n\nchangelog"] in calls
 
     @patch("devx.ci.release.tag_exists", return_value=False)
     @patch("devx.ci.release.run_cmd")