added a script in package.json

Author: harshithad0703

package.json

@@ -30,6 +30,7 @@
     "buildnativescript": "webpack --config webpack/webpack.nativescript.js --mode production",
     "buildweb": "webpack --config webpack/webpack.web.js --mode production",
     "test": "npm run test:api && npm run test:unit",
+    "test:sanity": "BABEL_ENV=test nyc --reporter=html --reporter=text mocha --require @babel/register ./test/sanity-check/sanity.js -t 30000 --reporter mochawesome --require babel-polyfill",
     "test:api": "BABEL_ENV=test nyc --reporter=html --reporter=text mocha --require @babel/register ./test/test.js -t 30000 --reporter mochawesome --require babel-polyfill",
     "test:unit": "BABEL_ENV=test nyc --reporter=html --reporter=text mocha --require @babel/register ./test/unit/index.js -t 30000 --reporter mochawesome --require babel-polyfill",
     "test:unit:report:json": "BABEL_ENV=test nyc --reporter=clover --reporter=text mocha --require @babel/register ./test/unit/index.js -t 30000 --reporter json --reporter-options output=report.json  --require babel-polyfill",