test: allow running Vercel e2e with runtime in directory different than default (#290)

Author: pieh

run-local-test.sh

@@ -12,6 +12,7 @@ fi
 export NEXT_TEST_CONTINUE_ON_ERROR=1
 export NETLIFY_SITE_ID=1d5a5c76-d445-4ae5-b694-b0d3f2e2c395
 export NEXT_TEST_MODE=deploy
+export RUNTIME_DIR=$(pwd)
 cp tests/netlify-deploy.ts ../next.js/test/lib/next-modes/netlify-deploy.ts
 cd ../next.js/
 git apply ../next-runtime-minimal/tests/e2e-utils.patch

tests/netlify-deploy.ts

@@ -43,7 +43,10 @@ export class NextDeployInstance extends NextInstance {
           publish = ".next"
           
           [[plugins]]
-          package = "${path.relative(this.testDir, `${process.cwd()}/../next-runtime-minimal`)}"
+          package = "${path.relative(
+            this.testDir,
+            process.env.RUNTIME_DIR || `${process.cwd()}/../next-runtime-minimal`,
+          )}"
           `
 
       await fs.writeFile(path.join(this.testDir, 'netlify.toml'), toml)