test: набор pytest-тестов под site/ (unit + интеграционные + безопасность)

tests/test_metrics.py

@@ -0,0 +1,87 @@
+"""Unit-тесты services/metrics.py — чистая логика, без БД."""
+from decimal import Decimal
+
+import pytest
+
+from services.metrics import (
+    check_arithmetic,
+    normalize_date,
+    _to_decimal,
+    ClassifyMetrics,
+)
+
+
+class TestNormalizeDate:
+    def test_dd_mm_yyyy(self):
+        assert normalize_date("01.01.2025") == "2025-01-01"
+
+    def test_already_iso(self):
+        assert normalize_date("2025-01-01") == "2025-01-01"
+
+    def test_empty(self):
+        assert normalize_date("") is None
+        assert normalize_date(None) is None
+
+    def test_unrecognized_passthrough(self):
+        assert normalize_date("01 января 2025") == "01 января 2025"
+
+
+class TestToDecimal:
+    def test_int(self):
+        assert _to_decimal("50000") == Decimal("50000")
+
+    def test_russian_number(self):
+        assert _to_decimal("50 000,00") == Decimal("50000.00")
+
+    def test_nbsp(self):
+        assert _to_decimal("1\u00a0000,50") == Decimal("1000.50")
+
+    def test_none(self):
+        assert _to_decimal(None) is None
+        assert _to_decimal("") is None
+
+    def test_garbage(self):
+        assert _to_decimal("не число") is None
+
+
+class TestCheckArithmetic:
+    def test_ok(self):
+        ops = [{"action": "ADD", "new_row": {"name": "x", "price": 100, "qty": 2, "sum": 200}}]
+        assert check_arithmetic(ops) == []
+
+    def test_mismatch(self):
+        ops = [{"action": "ADD", "new_row": {"name": "x", "price": 100, "qty": 2, "sum": 250}}]
+        m = check_arithmetic(ops)
+        assert len(m) == 1
+        assert m[0]["expected_sum"] == 200.0
+        assert m[0]["actual_sum"] == 250.0
+        assert m[0]["diff"] == 50.0
+
+    def test_update_values(self):
+        ops = [{"action": "UPDATE", "new_values": {"price": 10, "qty": 3, "sum": 30}}]
+        assert check_arithmetic(ops) == []
+
+    def test_skip_incomplete(self):
+        # нет qty → пропуск
+        ops = [{"action": "ADD", "new_row": {"name": "x", "price": 100, "sum": 200}}]
+        assert check_arithmetic(ops) == []
+
+    def test_skip_non_add_update(self):
+        ops = [{"action": "DELETE", "target_hash": "h"}]
+        assert check_arithmetic(ops) == []
+
+
+class TestClassifyMetrics:
+    def test_fix_rate(self):
+        m = ClassifyMetrics()
+        m.record(False)
+        m.record(True)
+        m.record(False)
+        assert m.total == 3
+        assert m.fixes == 1
+        assert m.fix_rate == pytest.approx(1 / 3)
+
+    def test_empty(self):
+        m = ClassifyMetrics()
+        assert m.fix_rate == 0.0
+        assert m.summary()["total_classifications"] == 0