GRM-51: refactor: convert shell scripts and inline workflow scripts to Python

tests/unit/test_classify_changes.py

@@ -1,11 +1,13 @@
 """Unit tests for scripts/ci/classify_changes.py."""
 
+from pathlib import Path
 from unittest.mock import MagicMock, patch
 
 import click
 import pytest
 from click.testing import CliRunner
 
+import scripts.ci.classify_changes as classify_changes_mod
 from scripts.ci.classify_changes import (
     classify_changes,
     get_changed_files,
@@ -312,3 +314,60 @@ class TestMain:
         result = runner.invoke(main, ["--check", "user-facing"])
         assert result.exit_code == 0
         assert "User-facing changes detected" in result.output
+
+
+class TestGithubOutput:
+    def test_writes_outputs(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+        gh_file = tmp_path / "output.txt"
+        monkeypatch.setenv("GITHUB_OUTPUT", str(gh_file))
+        with patch.object(
+            classify_changes_mod, "get_changed_files", return_value=["src/cli.py", "ansible/tasks/main.yml"]
+        ):
+            runner = CliRunner()
+            result = runner.invoke(main, ["--base", "v1.0", "--head", "HEAD", "--github-output"])
+        assert result.exit_code == 0
+        content = gh_file.read_text()
+        assert "ansible-changed=true" in content
+        assert "user-facing-changed=true" in content
+
+    def test_no_changes(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+        gh_file = tmp_path / "output.txt"
+        monkeypatch.setenv("GITHUB_OUTPUT", str(gh_file))
+        with patch.object(classify_changes_mod, "get_changed_files", return_value=[]):
+            runner = CliRunner()
+            result = runner.invoke(main, ["--base", "v1.0", "--head", "HEAD", "--github-output"])
+        assert result.exit_code == 0
+        content = gh_file.read_text()
+        assert "ansible-changed=false" in content
+        assert "user-facing-changed=false" in content
+
+    def test_no_tags(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+        gh_file = tmp_path / "output.txt"
+        monkeypatch.setenv("GITHUB_OUTPUT", str(gh_file))
+        with patch.object(classify_changes_mod, "get_latest_tag", return_value=""):
+            runner = CliRunner()
+            result = runner.invoke(main, ["--github-output"])
+        assert result.exit_code == 0
+        content = gh_file.read_text()
+        assert "ansible-changed=true" in content
+        assert "user-facing-changed=true" in content
+
+    def test_no_env_var(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        monkeypatch.delenv("GITHUB_OUTPUT", raising=False)
+        with patch.object(classify_changes_mod, "get_changed_files", return_value=["src/cli.py"]):
+            runner = CliRunner()
+            result = runner.invoke(main, ["--base", "v1.0", "--head", "HEAD", "--github-output"])
+        assert result.exit_code != 0
+
+    def test_workflow_only(self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+        gh_file = tmp_path / "output.txt"
+        monkeypatch.setenv("GITHUB_OUTPUT", str(gh_file))
+        with patch.object(
+            classify_changes_mod, "get_changed_files", return_value=[".gitea/workflows/ci.yml", "AGENTS.md"]
+        ):
+            runner = CliRunner()
+            result = runner.invoke(main, ["--base", "v1.0", "--head", "HEAD", "--github-output"])
+        assert result.exit_code == 0
+        content = gh_file.read_text()
+        assert "ansible-changed=false" in content
+        assert "user-facing-changed=false" in content