chore: add tests to confirm behavior for copying a request is working correctly

Author: Jake Champion

integration-tests/js-compute/fixtures/request-upstream/bin/index.js

@@ -1,9 +1,14 @@
 /* eslint-env serviceworker */
 addEventListener("fetch", (event) => {
-  // Make a Request upstream to our origin
   let headers = new Headers();
   headers.set("UpstreamHeader", "UpstreamValue");
-  let upstreamRequest = new Request(
+
+  let upstreamRequest = new Request(event.request, {
+    headers,
+  });
+  
+  // Create a new Request object with an updated URL to our origin
+  upstreamRequest = new Request(
     "https://compute-sdk-test-backend.edgecompute.app/request_upstream",
     {
       headers,

integration-tests/js-compute/fixtures/request-upstream/tests.json

@@ -5,6 +5,17 @@
       "method": "POST",
       "pathname": "/hello"
     },
+    "downstream_response": {
+      "status": 200,
+      "headers": []
+    }
+  },
+  "GET /hello": {
+    "environments": ["viceroy", "c@e"],
+    "downstream_request": {
+      "method": "GET",
+      "pathname": "/hello"
+    },
     "downstream_response": {
       "status": 200,
       "body": "Hello from Origin",
@@ -13,5 +24,19 @@
         ["x-cat", "meow, nyan, mrrow, miau"]
       ]
     }
+  },
+  "HEAD /hello": {
+    "environments": ["viceroy", "c@e"],
+    "downstream_request": {
+      "method": "HEAD",
+      "pathname": "/hello"
+    },
+    "downstream_response": {
+      "status": 200,
+      "headers": [
+        ["OriginHeader", "OriginValue"],
+        ["x-cat", "meow, nyan, mrrow, miau"]
+      ]
+    }
   }
 }