test: add basic tests for session

test/session.test.ts

@@ -0,0 +1,72 @@
+import supertest from "supertest";
+import { describe, it, expect, beforeEach } from "vitest";
+import {
+  createApp,
+  toNodeListener,
+  App,
+  eventHandler,
+  useSession,
+  readBody,
+  SessionConfig,
+} from "../src";
+
+describe("session", () => {
+  let app: App;
+  let request: ReturnType<typeof supertest>;
+  let cookie: string | undefined;
+
+  beforeEach(() => {
+    app = createApp({ debug: true });
+    let sessionIdCtr = 0;
+    const sessionConfig: SessionConfig = {
+      name: "h3-test",
+      password: "1234567123456712345671234567123456712345671234567",
+      generateId: () => ++sessionIdCtr + "",
+    };
+    app.use(
+      "/",
+      eventHandler(async (event) => {
+        const session = await useSession(event, sessionConfig);
+        if (event.method === "POST") {
+          await session.update(await readBody(event));
+        }
+        return { session };
+      }),
+    );
+    request = supertest(toNodeListener(app));
+  });
+
+  describe("useSession", () => {
+    it("initiates session", async () => {
+      const result = await request.get("/");
+      expect(result.headers["set-cookie"]).toHaveLength(1);
+      cookie = result.headers["set-cookie"][0];
+      expect(result.body).toMatchObject({
+        session: { id: "1", data: {} },
+      });
+    });
+
+    it("gets same session back", async () => {
+      const result = await request.get("/");
+      expect(result.body).toMatchObject({
+        session: { id: "1", data: {} },
+      });
+    });
+
+    it("set session data", async () => {
+      const result = await request
+        .post("/")
+        .set("Cookie", cookie as string)
+        .send({ foo: "bar" });
+      cookie = result.headers["set-cookie"][0];
+      expect(result.body).toMatchObject({
+        session: { id: "1", data: { foo: "bar" } },
+      });
+
+      const result2 = await request.get("/").set("Cookie", cookie as string);
+      expect(result2.body).toMatchObject({
+        session: { id: "1", data: { foo: "bar" } },
+      });
+    });
+  });
+});