from gitignore_generator.validator import validator, Validator


class TestValidator:
    def test_validate_empty_content(self):
        result = validator.validate_content("")
        assert len(result) == 0

    def test_validate_valid_patterns(self):
        content = "__pycache__\n*.pyc\n*.log"
        issues = validator.validate_content(content)
        assert len(issues) == 0

    def test_validate_trailing_slash(self):
        content = "dir/"
        issues = validator.validate_content(content)
        assert len(issues) > 0
        assert any(i.issue_type == "trailing_slash" for i in issues)

    def test_validate_backslash_escape(self):
        content = "pattern\\n"
        issues = validator.validate_content(content)
        assert len(issues) > 0
        assert any(i.issue_type == "invalid_escape" for i in issues)

    def test_validate_duplicate_patterns(self):
        content = "__pycache__\n__pycache__"
        issues = validator.validate_content(content)
        assert len(issues) > 0
        assert any(i.issue_type == "duplicate" for i in issues)

    def test_validate_wildcard_usage(self):
        content = "a/**/b"
        issues = validator.validate_content(content)
        assert len(issues) > 0
        assert any(i.issue_type == "double_star" for i in issues)

    def test_is_valid_valid(self):
        assert validator.is_valid("__pycache__\n*.pyc")

    def test_is_valid_invalid(self):
        assert not validator.is_valid("pattern\\n")

    def test_get_summary(self):
        content = "__pycache__\n*.pyc"
        summary = validator.get_summary(content)
        assert summary["valid"]
        assert summary["errors"] == 0
        assert summary["warnings"] == 0

    def test_validate_pattern(self):
        issue = validator.validate_pattern("valid_pattern")
        assert issue is None

    def test_validate_pattern_invalid(self):
        issue = validator.validate_pattern("pattern\\n")
        assert issue is not None
        assert issue.severity == "error"

    def test_init_validator(self):
        v = Validator()
        assert v.issues == []
        assert v.warnings == []