"""
Tests for PlusgiroNormalizer

Usage:
    pytest tests/normalize/normalizers/test_plusgiro_normalizer.py -v
"""

import pytest
from src.normalize.normalizers.plusgiro_normalizer import PlusgiroNormalizer


class TestPlusgiroNormalizer:
    """Test PlusgiroNormalizer functionality"""

    @pytest.fixture
    def normalizer(self):
        """Create normalizer instance for testing"""
        return PlusgiroNormalizer()

    def test_with_dash_8_digits(self, normalizer):
        """8-digit Plusgiro with dash should generate variants"""
        result = normalizer.normalize('1234567-8')
        assert '1234567-8' in result
        assert '12345678' in result

    def test_without_dash_8_digits(self, normalizer):
        """8-digit Plusgiro without dash should generate dash variant"""
        result = normalizer.normalize('12345678')
        assert '12345678' in result
        assert '1234567-8' in result

    def test_7_digits(self, normalizer):
        """7-digit Plusgiro should be handled"""
        result = normalizer.normalize('1234567')
        assert '1234567' in result

    def test_empty_string(self, normalizer):
        """Empty string should return empty list"""
        result = normalizer('')
        assert result == []

    def test_none_value(self, normalizer):
        """None value should return empty list"""
        result = normalizer(None)
        assert result == []

    def test_callable_interface(self, normalizer):
        """Normalizer should be callable via __call__"""
        result = normalizer('1234567-8')
        assert '12345678' in result

    def test_with_spaces(self, normalizer):
        """Plusgiro with spaces should be normalized"""
        result = normalizer.normalize('1234567 8')
        assert '12345678' in result

    def test_9_digits(self, normalizer):
        """9-digit Plusgiro should be handled"""
        result = normalizer.normalize('123456789')
        assert '123456789' in result

    def test_with_prefix(self, normalizer):
        """Plusgiro with PG: prefix should be normalized"""
        result = normalizer.normalize('PG:1234567-8')
        assert '12345678' in result

    def test_generates_ocr_variants(self, normalizer):
        """Should generate OCR error variants"""
        result = normalizer.normalize('1234567-8')
        # Should contain multiple variants including OCR corrections
        assert len(result) > 2