add test for whitepaper page pdf link

Author: pettinarip

tests/e2e/whitepaper.spec.ts

@@ -0,0 +1,28 @@
+import { expect, request, test } from "@playwright/test"
+
+const PAGE_URL = "/whitepaper"
+const PDF_LINK_TEXT = /whitepaper.*pdf/i
+const PDF_PATH =
+  "/content/whitepaper/whitepaper-pdf/Ethereum_Whitepaper_-_Buterin_2014.pdf"
+
+test.describe("Whitepaper Page", () => {
+  test("whitepaper PDF link has correct href", async ({ page }) => {
+    await page.goto(PAGE_URL)
+
+    const pdfLink = page.getByRole("link", { name: PDF_LINK_TEXT })
+    await expect(pdfLink).toBeVisible()
+
+    const href = await pdfLink.getAttribute("href")
+    expect(href).toContain(PDF_PATH)
+  })
+
+  test("whitepaper PDF is accessible and served as PDF", async ({
+    baseURL,
+  }) => {
+    const apiRequest = await request.newContext()
+    const response = await apiRequest.get(baseURL + PDF_PATH)
+    expect(response.status()).toBe(200)
+    expect(response.headers()["content-type"]).toContain("application/pdf")
+    await apiRequest.dispose()
+  })
+})