Add script to install test deps

package.json

@@ -46,6 +46,7 @@
     "test": "run-s test:*",
     "ava": "ava --verbose",
     "format": "prettier --write \"{src,scripts,docs,site/src,.circleci,.github}/**/*.{js,md,yml,json,html}\" \"site/*.{js,md}\" \"*.{js,md,yml,json,html}\" \"tests/**/*.js\" \"!CHANGELOG.md\"",
+    "test:install-deps": "npm --prefix tests/site-cra",
     "test:ava": "nyc --reporter=lcov ava --verbose && nyc report",
     "test:lint": "eslint --fix \"{src,scripts}/**/*.js\"",
     "test:format": "prettier --check \"{src,scripts,docs,site/src,.circleci,.github}/**/*.{js,md,yml,json,html}\" \"site/*.{js,md}\" \"*.{js,md,yml,json,html}\" \"tests/**/*.js\" \"!CHANGELOG.md\"",

tests/cra.test.js

@@ -12,22 +12,6 @@ const port = randomPort()
 const host = 'localhost:' + port
 
 test.before(async t => {
-  console.log('Installing Create React App project dependencies')
-  const { stdout, stderr, status, error } = spawnSync('npm', ['ci', '--prefix', 'tests/site-cra'], { shell: true })
-  if (status !== 0) {
-    const message = `Failed installing Create React App project dependencies from path '${sitePath}'`
-    console.error(message)
-    if (error) {
-      console.log('error:', error.message)
-    }
-    if (stdout) {
-      console.log('stdout:', stdout.toString())
-    }
-    if (stderr) {
-      console.log('stderr:', stderr.toString())
-    }
-    throw new Error(message)
-  }
   console.log('Running Netlify Dev server in Create React App project')
   ps = await spawn(cliPath, ['dev', '-p', port], {
     cwd: sitePath,