[tests] Add x-vercel-id to test error message (#10149)

Including the `x-vercel-id` header when a e2e test fails will help us
debug issues

packages/cli/test/dev/utils.js

@@ -44,7 +44,9 @@ function fetchWithRetry(url, opts = {}) {
       if (res.status !== opts.status) {
         const text = await res.text();
         throw new Error(
-          `Failed to fetch ${url} with status ${res.status} (expected ${opts.status}):\n\n${text}\n\n`
+          `Failed to fetch "${url}", received ${res.status}, expected ${
+            opts.status
+          }, id: ${res.headers.get('x-vercel-id')}:\n\n${text}\n\n`
         );
       }
 

packages/cli/test/integration-1.test.ts

@@ -32,7 +32,9 @@ function fetchTokenInformation(token: string, retries = 3) {
 
       if (!res.ok) {
         throw new Error(
-          `Failed to fetch ${url}, received status ${res.status}`
+          `Failed to fetch "${url}", status: ${
+            res.status
+          }, id: ${res.headers.get('x-vercel-id')}`
         );
       }
 

packages/cli/test/integration-2.test.ts

@@ -43,7 +43,9 @@ function fetchTokenInformation(token: string, retries = 3) {
 
       if (!res.ok) {
         throw new Error(
-          `Failed to fetch ${url}, received status ${res.status}`
+          `Failed to fetch "${url}", status: ${
+            res.status
+          }, id: ${res.headers.get('x-vercel-id')}`
         );
       }
 

packages/cli/test/integration-3.test.ts

@@ -47,7 +47,9 @@ function fetchTokenInformation(token: string, retries = 3) {
 
       if (!res.ok) {
         throw new Error(
-          `Failed to fetch ${url}, received status ${res.status}`
+          `Failed to fetch "${url}", status: ${
+            res.status
+          }, id: ${res.headers.get('x-vercel-id')}`
         );
       }