Re-structure the project.

tests/normalize/normalizers/test_plusgiro_normalizer.py

@@ -0,0 +1,71 @@
+"""
+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