disable sub shell generation test outside of adapter (#91353)

These tests have started failing in deploy mode in environments outside
of the new Vercel adapter. Shell related behavior is changing as part of
the new `partialFallbacks` flag and will not be backported to the old
CLI, so this gates the test to ensure it runs in the right deployment
environment.

Author: ztanner

test/e2e/app-dir/sub-shell-generation-middleware/sub-shell-generation-middleware.test.ts

@@ -3,9 +3,14 @@ import * as cheerio from 'cheerio'
 import { getCacheHeader, retry } from 'next-test-utils'
 import { computeCacheBustingSearchParam } from 'next/dist/shared/lib/router/utils/cache-busting-search-param'
 
+const isAdapterTest = Boolean(process.env.NEXT_ENABLE_ADAPTER)
+
 describe('middleware-static-rewrite', () => {
   const { next, isNextDeploy, isNextDev } = nextTestSetup({
     files: __dirname,
+    // The latest changes to support this behavior on deployed infra are available in the adapter,
+    // and are not being backported to the CLI
+    skipDeployment: !isAdapterTest,
   })
 
   if (isNextDev) {

test/e2e/app-dir/sub-shell-generation/sub-shell-generation.test.ts

@@ -1,9 +1,14 @@
 import { nextTestSetup } from 'e2e-utils'
 import * as cheerio from 'cheerio'
 
+const isAdapterTest = Boolean(process.env.NEXT_ENABLE_ADAPTER)
+
 describe('sub-shell-generation', () => {
   const { next, isNextDev, isNextDeploy } = nextTestSetup({
     files: __dirname,
+    // The latest changes to support this behavior on deployed infra are available in the adapter,
+    // and are not being backported to the CLI
+    skipDeployment: !isAdapterTest,
   })
 
   if (isNextDev) {