Add CLI and integration tests

tests/unit/test_cli.py

@@ -0,0 +1,76 @@
+import pytest
+from unittest.mock import patch, Mock
+from click.testing import CliRunner
+from pathlib import Path
+import tempfile
+import json
+
+
+@pytest.fixture
+def runner():
+    return CliRunner()
+
+
+class TestCLI:
+    def test_version_option(self, runner):
+        from depaudit.cli import main
+
+        result = runner.invoke(main, ["--version"])
+        assert result.exit_code == 0
+        assert "1.0.0" in result.output
+
+    def test_audit_command_exists(self, runner):
+        from depaudit.cli import main
+
+        result = runner.invoke(main, ["--help"])
+        assert result.exit_code == 0
+        assert "audit" in result.output.lower()
+
+
+class TestAuditCommand:
+    def test_audit_no_path(self, runner):
+        from depaudit.cli import audit
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            result = runner.invoke(audit, [tmpdir])
+            assert result.exit_code == 0
+
+    def test_audit_single_file(self, runner):
+        from depaudit.cli import audit
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            pkg_file = Path(tmpdir) / "package.json"
+            pkg_file.write_text(json.dumps({
+                "name": "test",
+                "version": "1.0.0",
+                "dependencies": {}
+            }))
+
+            result = runner.invoke(audit, [str(pkg_file)])
+            assert result.exit_code == 0
+
+
+class TestGenerateCICDCommand:
+    def test_generate_github_workflow(self, runner):
+        from depaudit.cli import generate_cicd
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            result = runner.invoke(generate_cicd, ["github", tmpdir])
+            assert result.exit_code == 0
+
+
+class TestParseCommand:
+    def test_parse_package_json(self, runner):
+        from depaudit.cli import parse
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            pkg_file = Path(tmpdir) / "package.json"
+            pkg_file.write_text(json.dumps({
+                "name": "test-project",
+                "version": "1.0.0",
+                "dependencies": {"express": "^4.0.0"}
+            }))
+
+            result = runner.invoke(parse, [str(pkg_file)])
+            assert result.exit_code == 0
+            assert "test-project" in result.output