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Rebuild the Classic template on the engine with A4/Letter and a template harness

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Classic now renders through buildRenderModel, computeFrame, the template
and renderCore, with S.No and HSN/SAC columns, GST slots only through
checked Slot components, taxable value, reverse-charge line, cancelled tag,
continuation band and Page n of N. Letter absorbs its height deficit in
elastic gaps. A harness runs 15 fixtures on A4 and Letter plus an item
sweep and asserts zero audit errors, repeated headers, no split blocks,
rupee extraction and deterministic output. The legacy InvoiceDocument is
removed.
This commit is contained in:
xavierk
2026-10-04 05:31:14 +05:30
parent 8d4f8e666b
commit a014a907e4
40 changed files with 2185 additions and 832 deletions
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src/pdf/model/build.test.ts
+12 -4
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@@ -97,7 +97,7 @@ describe("unregistered invoice", () => {
expect(m.docTitle).toBe("Invoice");
expect(m.docType).toBe("invoice");
expect(m.pdfTitle).toBe("Invoice INV-0001");
expect(m.slots).toEqual({ gstin: false, clientGstin: false, pos: false, hsn: true, taxRows: false });
expect(m.slots).toEqual({ gstin: false, clientGstin: false, pos: false, hsn: true, taxRows: false, reverseCharge: false });
expect(m.totals).toMatchObject({
subtotalText: "₹5,500.50",
discountText: null,
@@ -119,7 +119,7 @@ describe("unregistered invoice", () => {
expect(m.client.addressLines).toEqual(["1 Main Road", "Mumbai"]);
expect(m.client.poNumber).toBeNull();
expect(m.notesLines).toEqual(["Thanks", "Pay in 30 days"]);
expect(m.meta).toEqual({ numberLabel: "Invoice No.", number: "INV-0001", date: "15 Sept 2026", dueDate: "05 Oct 2026" });
expect(m.meta).toEqual({ numberLabel: "Invoice No.", number: "INV-0001", date: "15 Sept 2026", isoDate: "2026-09-15", dueDate: "05 Oct 2026" });
});
it("builds items with rate, quantity and em-dash fallback", () => {
expect(m.items[0]).toEqual({
@@ -179,16 +179,24 @@ describe("CGST + SGST tax invoice", () => {
expect(m.totals.discountText).toBe("₹500.50");
expect(m.totals.taxableText).toBe("₹5,000.00");
expect(m.totals.totalText).toBe("₹5,250.00");
expect(m.slots).toEqual({ gstin: true, clientGstin: true, pos: true, hsn: true, taxRows: true });
expect(m.slots).toEqual({ gstin: true, clientGstin: true, pos: true, hsn: true, taxRows: true, reverseCharge: true });
expect(m.client.posLabel).toBe("29 – Karnataka");
expect(m.client.gstin).toBe("29ABCDE1234F1Z5");
expect(m.client.poNumber).toBe("PO-77");
expect(m.supplier.showGstin).toBe(true);
expect(m.reverseCharge).toMatch(/reverse charge/i);
expect(m.reverseCharge).toBe("Tax is payable on reverse charge: Yes");
expect(m.signature).toMatchObject({ name: "A. Person", designation: "Proprietor" });
});
});
describe("reverse charge line", () => {
it("is always present on a tax invoice (Yes or No) and absent on a plain invoice", () => {
expect(make({ docType: "tax_invoice", reverseCharge: false }).reverseCharge).toBe("Tax is payable on reverse charge: No");
expect(make({ docType: "tax_invoice", reverseCharge: true }).reverseCharge).toBe("Tax is payable on reverse charge: Yes");
expect(make({ docType: "invoice", reverseCharge: true }).reverseCharge).toBeNull();
});
});
describe("IGST", () => {
const m = make({ docType: "tax_invoice", taxType: "igst", taxRate: 18, igstAmount: 990.09, total: 6490.59, placeOfSupplyStateCode: "27" });
it("has one IGST row at the full rate", () => {