DEVX-91: refactor: add find_task_by_identifier, config fallbacks for tools

tests/unit/test_check_test_coverage.py

@@ -3,6 +3,8 @@
 from pathlib import Path
 from unittest.mock import MagicMock, patch
 
+from click.testing import CliRunner
+
 from devx.tools.check_test_coverage import (
     BUILTIN_RULES,
     DEFAULT_SKIP_EXTENSIONS,
@@ -13,7 +15,7 @@ from devx.tools.check_test_coverage import (
     _load_rules,
     _resolve_test_path,
     _should_skip_file,
-    main,
+    cli,
 )
 
 
@@ -201,7 +203,10 @@ class TestMain:
             ),
             patch("devx.tools.check_test_coverage.Path.cwd", return_value=tmp_path),
         ):
-            assert main([]) == 0
+            runner = CliRunner()
+            result = runner.invoke(cli, [])
+            assert result.exit_code == 0
+            assert "No changed files" in result.output
 
     def test_all_have_tests(self, tmp_path: Path) -> None:
         (tmp_path / "scripts" / "tests").mkdir(parents=True)
@@ -214,7 +219,10 @@ class TestMain:
             ),
             patch("devx.tools.check_test_coverage.Path.cwd", return_value=tmp_path),
         ):
-            assert main([]) == 0
+            runner = CliRunner()
+            result = runner.invoke(cli, [])
+            assert result.exit_code == 0
+            assert "have tests" in result.output
 
     def test_missing_test_returns_1(self, tmp_path: Path) -> None:
         with (
@@ -225,7 +233,9 @@ class TestMain:
             ),
             patch("devx.tools.check_test_coverage.Path.cwd", return_value=tmp_path),
         ):
-            assert main([]) == 1
+            runner = CliRunner()
+            result = runner.invoke(cli, [])
+            assert result.exit_code != 0
 
     def test_warn_only_returns_0(self, tmp_path: Path) -> None:
         with (
@@ -236,4 +246,6 @@ class TestMain:
             ),
             patch("devx.tools.check_test_coverage.Path.cwd", return_value=tmp_path),
         ):
-            assert main(["--warn-only"]) == 0
+            runner = CliRunner()
+            result = runner.invoke(cli, ["--warn-only"])
+            assert result.exit_code == 0