Fail in CI when package tests fail (#5718)

* Fail in CI when package tests fail

Fixes #5713

Co-authored-by: chris48s <chris48s@users.noreply.github.com>

scripts/run_package_tests.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# https://discuss.circleci.com/t/switch-nodejs-version-on-machine-executor-solved/26675/3
+
+# Start off less strict to work around various nvm errors.
+set -e
+export NVM_DIR="/opt/circleci/.nvm"
+[ -s "$NVM_DIR/nvm.sh" ] && source "$NVM_DIR/nvm.sh"
+nvm install $NODE_VERSION
+nvm use $NODE_VERSION
+
+# Stricter.
+set -euo pipefail
+node --version
+
+# Install the shields.io dependencies.
+if [[ "$NODE_VERSION" == "v10" ]]; then
+    # Avoid a depcheck error.
+    npm ci --ignore-scripts
+else
+    npm ci
+fi
+
+# Run the package tests.
+npm run test:package
+npm run check-types:package
+
+# Delete the shields.io dependencies.
+rm -rf node_modules/
+
+# Run a smoke test (render a badge with the CLI) with only the package
+# dependencies installed.
+cd badge-maker
+npm link
+badge cactus grown :green @flat