e2e test: create-react-app (#10704)

* e2e test: create-react-app

* Fix

* Fix

* Fix

* Fix

scripts/integration-tests/e2e-create-react-app.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+#==============================================================================#
+#                                  SETUP                                       #
+#==============================================================================#
+
+# Start in scripts/integration-tests/ even if run from root directory
+cd "$(dirname "$0")"
+
+source utils/local-registry.sh
+source utils/cleanup.sh
+
+# Echo every command being executed
+set -x
+
+# Clone create-react-app
+git clone https://github.com/facebook/create-react-app.git tmp/create-react-app
+cd tmp/create-react-app
+
+#==============================================================================#
+#                                   TEST                                       #
+#==============================================================================#
+
+startLocalRegistry "$PWD"/../../verdaccio-config.yml
+yarn install
+# "yarn upgrade --scope @babel --latest" doesn't seem to work.
+# a means "all", while \n is the enter needed to confirm the selection.
+echo "a\n" | yarn upgrade-interactive --scope @babel --latest
+
+# Test
+CI=true yarn test
+
+cleanup