Initial Commit

packages/foundation/data/packer-browser/tests/e2e/range.spec.ts

@@ -0,0 +1,36 @@
+import { expect, test } from "@playwright/test";
+
+/**
+ * Cluster C Playwright sweep — range-request 206 path. The SW must
+ * intercept a packed URL whose cached body exceeds the configured
+ * `rangeThreshold` and serve a `206 Partial Content` response when the
+ * page issues a fetch carrying a `Range` header. The spec is harness-
+ * agnostic and assumes the page exposes a packed asset at
+ * `/sample-large.packed`.
+ */
+test.describe("packed-resource SW range request (cluster C)", () => {
+    test("serves 206 Partial Content for a ranged packed request", async ({
+        page,
+    }) => {
+        await page.goto("/");
+        await page.evaluate(async () => {
+            await navigator.serviceWorker.register("/service-worker.js");
+            await navigator.serviceWorker.ready;
+        });
+        const response = await page.evaluate(async () => {
+            const r = await fetch("/sample-large.packed", {
+                headers: { Range: "bytes=0-9" },
+            });
+            return {
+                status: r.status,
+                contentRange: r.headers.get("Content-Range"),
+                acceptRanges: r.headers.get("Accept-Ranges"),
+                contentLength: r.headers.get("Content-Length"),
+            };
+        });
+        expect(response.status).toBe(206);
+        expect(response.contentRange).toMatch(/^bytes 0-9\/\d+$/);
+        expect(response.acceptRanges).toBe("bytes");
+        expect(response.contentLength).toBe("10");
+    });
+});