Adds middleware test

src/middleware.test.ts

@@ -0,0 +1,32 @@
+import { Handler, Request } from "retes";
+import { Response } from "retes/types";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { withBaseURL } from "./middleware";
+
+const getMockEmptyResponse = async () => ({} as Response);
+
+describe("middleware.test.ts", () => {
+  describe("withBaseURL", () => {
+    let mockHandlerFn: Handler = vi.fn(getMockEmptyResponse);
+
+    beforeEach(() => {
+      mockHandlerFn = vi.fn();
+    });
+
+    it("Adds base URL from request header to context and calls handler", async () => {
+      const mockRequest = {
+        context: {},
+        headers: {
+          host: "my-saleor-env.saleor.cloud",
+          "x-forwarded-proto": "https",
+        },
+      } as unknown as Request;
+
+      await withBaseURL(mockHandlerFn)(mockRequest);
+
+      expect(mockRequest.context.baseURL).toBe("https://my-saleor-env.saleor.cloud");
+      expect(mockHandlerFn).toHaveBeenCalledOnce();
+    });
+  });
+});

src/middleware.ts

@@ -12,8 +12,7 @@ export const withBaseURL: Middleware = (handler) => async (request) => {
 
   request.context.baseURL = `${protocol}://${host}`;
 
-  const response = await handler(request);
-  return response;
+  return handler(request);
 };
 
 export const withSaleorDomainPresent: Middleware = (handler) => async (request) => {