import pytest
from src.validators import PatternValidator

class TestPatternValidator:
    def setup_method(self):
        self.validator = PatternValidator()

    def test_detect_dangerous_rm(self):
        findings = self.validator.check("rm -rf $TARGET_DIR")
        assert len(findings) == 1
        assert findings[0].rule_id == "DANGER001"

    def test_safe_command(self):
        findings = self.validator.check("ls -la /tmp")
        assert len(findings) == 0