DATEV-Automatikkonten mit Bruttobeträgen exportieren

backend/tests/datevExport.test.ts

@@ -0,0 +1,29 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import { getCreatedDocumentRevenueLines } from "../src/utils/export/datev";
+
+test("exports gross amounts for DATEV automatic revenue accounts", () => {
+    const revenueLines = getCreatedDocumentRevenueLines({
+        rows: [
+            { mode: "position", quantity: 1, price: 100, discountPercent: 0, taxPercent: 19 },
+            { mode: "position", quantity: 2, price: 50, discountPercent: 0, taxPercent: 7 },
+            { mode: "position", quantity: 1, price: 50, discountPercent: 0, taxPercent: 0 },
+        ],
+    });
+
+    assert.deepEqual(revenueLines, [
+        { account: "8400", amount: 119 },
+        { account: "8334", amount: 107 },
+        { account: "8290", amount: 50 },
+    ]);
+});
+
+test("preserves negative gross amounts for cancellations", () => {
+    const revenueLines = getCreatedDocumentRevenueLines({
+        rows: [
+            { mode: "position", quantity: -1, price: 100, discountPercent: 0, taxPercent: 19 },
+        ],
+    });
+
+    assert.deepEqual(revenueLines, [{ account: "8400", amount: -119 }]);
+});