test(pdf-service): add pdfDownloadLoader tests

app/routes/shared/__test__/pdfDownloadLoader.test.ts

@@ -0,0 +1,96 @@
+import type { LoaderFunctionArgs } from "@remix-run/node";
+import { PDFDocument } from "pdf-lib";
+import { pdfDownloadLoader } from "../pdfDownloadLoader";
+
+// Convert Buffers to Uint8Array for compatibility with Vitest
+// Vitest expects Uint8Array inputs for certain methods in pdf-lib.
+function wrapPdfDocumentLoad() {
+  const originalLoad = PDFDocument.load;
+  vi.spyOn(PDFDocument, "load").mockImplementation((input, ...args) => {
+    const adjustedInput =
+      input instanceof Buffer ? new Uint8Array(input) : input;
+    return originalLoad.call(PDFDocument, adjustedInput, ...args);
+  });
+}
+
+function wrapEmbedFont() {
+  const originalEmbedFont = PDFDocument.prototype.embedFont;
+  vi.spyOn(PDFDocument.prototype, "embedFont").mockImplementation(function (
+    this: PDFDocument,
+    fontData,
+    ...args
+  ) {
+    const adjustedFontData =
+      fontData instanceof Buffer ? new Uint8Array(fontData) : fontData;
+    return originalEmbedFont.call(this, adjustedFontData, ...args);
+  });
+}
+
+vi.mock("~/services/flow/pruner", () => ({
+  pruneIrrelevantData: vi
+    .fn()
+    .mockResolvedValue({ vorname: "Zoe", nachname: "Müller" }),
+}));
+
+describe("pdfDownloadLoader", () => {
+  beforeAll(() => {
+    wrapPdfDocumentLoad();
+    wrapEmbedFont();
+  });
+
+  afterAll(() => {
+    vi.restoreAllMocks();
+  });
+
+  it("generates correct PDF for Beratungshilfe", async () => {
+    const mockLoaderArgs: LoaderFunctionArgs = {
+      request: new Request(
+        "https://mock-url.de/beratungshilfe/antrag/download/pdf",
+        {
+          method: "GET",
+          headers: new Headers({ Cookie: "mock-session-data" }),
+        },
+      ),
+      params: {},
+      context: {},
+    };
+
+    const response = await pdfDownloadLoader(mockLoaderArgs);
+    const pdfBuffer = Buffer.from(await response.arrayBuffer());
+    const pdfDoc = await PDFDocument.load(new Uint8Array(pdfBuffer));
+    const nameField = pdfDoc
+      .getForm()
+      .getTextField("Antragsteller (Name, Vorname ggf Geburtsname)");
+
+    expect(response.status).toBe(200);
+    expect(response.headers.get("Content-Type")).toBe("application/pdf");
+    expect(pdfDoc.getPageCount()).toBe(4);
+    expect(nameField.getText()).toBe("Müller, Zoe");
+  });
+
+  it("generates correct PDF for Prozesskostenhilfe", async () => {
+    const mockLoaderArgs: LoaderFunctionArgs = {
+      request: new Request(
+        "https://mock-url.de/prozesskostenhilfe/formular/download/pdf",
+        {
+          method: "GET",
+          headers: new Headers({ Cookie: "mock-session-data" }),
+        },
+      ),
+      params: {},
+      context: {},
+    };
+
+    const response = await pdfDownloadLoader(mockLoaderArgs);
+    const pdfBuffer = Buffer.from(await response.arrayBuffer());
+    const pdfDoc = await PDFDocument.load(new Uint8Array(pdfBuffer));
+    const nameField = pdfDoc
+      .getForm()
+      .getTextField("Name Vorname ggf Geburtsname");
+
+    expect(response.status).toBe(200);
+    expect(response.headers.get("Content-Type")).toBe("application/pdf");
+    expect(pdfDoc.getPageCount()).toBe(9);
+    expect(nameField.getText()).toBe("Müller, Zoe");
+  });
+});

tests/e2e/domains/beratungshilfe/formular/beratungshilfe.formular.spec.ts

@@ -97,7 +97,4 @@ async function startAbgabe(page: Page) {
 
   expect(newTabResponse).not.toBeUndefined();
   expect(newTabResponse?.status()).toBe(200);
-  expect(await newTabResponse?.headerValue("content-type")).toBe(
-    "application/pdf",
-  );
 }

tests/e2e/domains/prozesskostenhilfe/formular/abgabe.ts

@@ -23,7 +23,4 @@ export async function startAbgabe(page: Page) {
 
   expect(newTabResponse).not.toBeUndefined();
   expect(newTabResponse?.status()).toBe(200);
-  expect(await newTabResponse?.headerValue("content-type")).toBe(
-    "application/pdf",
-  );
 }