Always throw error when build fails during test (#64116)

## What?

When creating the Next.js instance fails for whatever reason (most
commonly `next build` failing) it currently exits the process, this
causes Jest to not report these tests as failed.

The change in this PR ensures that anytime creating the instance fails
it throws an error that is caught by Jest and then causes Jest to report
the tests as failed.

The reporting of tests is relevant as our monitoring tools (i.e. DataDog
/ Turbopack test manifest) rely on correct reporting of all failing
tests.


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Closes NEXT-3016

.github/workflows/test_e2e_deploy.yml

@@ -51,7 +51,7 @@ jobs:
       - run: node scripts/run-e2e-test-project-reset.mjs
         name: Reset test project
 
-      - run: docker run --rm -v $(pwd):/work mcr.microsoft.com/playwright:v1.35.1-jammy /bin/bash -c "cd /work && NODE_VERSION=${{ env.NODE_LTS_VERSION }} ./scripts/setup-node.sh && corepack enable > /dev/null && NEXT_JUNIT_TEST_REPORT=true DATADOG_API_KEY=${DATADOG_API_KEY} DD_ENV=ci VERCEL_TEST_TOKEN=${{ secrets.VERCEL_TEST_TOKEN }} VERCEL_TEST_TEAM=vtest314-next-e2e-tests NEXT_TEST_JOB=1 NEXT_TEST_MODE=deploy TEST_TIMINGS_TOKEN=${{ secrets.TEST_TIMINGS_TOKEN }} NEXT_TEST_CONTINUE_ON_ERROR=1 xvfb-run node run-tests.js --type e2e --timings -g ${{ matrix.group }}/2 -c 1 >> /proc/1/fd/1"
+      - run: docker run --rm -v $(pwd):/work mcr.microsoft.com/playwright:v1.35.1-jammy /bin/bash -c "cd /work && NODE_VERSION=${{ env.NODE_LTS_VERSION }} ./scripts/setup-node.sh && corepack enable > /dev/null && NEXT_JUNIT_TEST_REPORT=true DATADOG_API_KEY=${DATADOG_API_KEY} DD_ENV=ci VERCEL_TEST_TOKEN=${{ secrets.VERCEL_TEST_TOKEN }} VERCEL_TEST_TEAM=vtest314-next-e2e-tests NEXT_TEST_JOB=1 NEXT_TEST_MODE=deploy TEST_TIMINGS_TOKEN=${{ secrets.TEST_TIMINGS_TOKEN }} xvfb-run node run-tests.js --type e2e --timings -g ${{ matrix.group }}/2 -c 1 >> /proc/1/fd/1"
         name: Run test/e2e (deploy)
 
       - name: Upload test report

test/lib/e2e-utils.ts

@@ -213,16 +213,12 @@ export async function createNext(
   } catch (err) {
     require('console').error('Failed to create next instance', err)
     try {
-      nextInstance.destroy()
+      await nextInstance?.destroy()
     } catch (_) {}
 
-    if (process.env.NEXT_TEST_CONTINUE_ON_ERROR) {
-      // Other test should continue to create new instance if NEXT_TEST_CONTINUE_ON_ERROR explicitly specified.
-      nextInstance = undefined
-      throw err
-    } else {
-      process.exit(1)
-    }
+    nextInstance = undefined
+    // Throw instead of process exit to ensure that Jest reports the tests as failed.
+    throw err
   } finally {
     flushAllTraces()
   }