fix: Remove deprecated test files and add environment variable checks

Author: harshithad0703

package.json

@@ -33,7 +33,6 @@
     "test:sanity-test": "BABEL_ENV=test nyc --reporter=html mocha --require @babel/register ./test/sanity-check/sanity.js -t 30000 --reporter mochawesome --require babel-polyfill --reporter-options reportDir=mochawesome-report,reportFilename=mochawesome.json",
     "test:sanity": "npm run test:sanity-test || true",
     "test:sanity-report": "marge mochawesome-report/mochawesome.json -f sanity-report.html --inline && node sanity-report.mjs",
-    "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",
     "test:typescript": "jest --testPathPattern=test/typescript --config ./jest.config.js --coverage",

test/sanity-check/utility/ContentstackClient.js

@@ -1,6 +1,15 @@
 import * as contentstack from '../../../lib/contentstack.js'
 import dotenv from 'dotenv'
 dotenv.config()
+
+const requiredVars = ['HOST', 'EMAIL', 'PASSWORD', 'ORGANIZATION', 'API_KEY']
+const missingVars = requiredVars.filter((key) => !process.env[key])
+
+if (missingVars.length > 0) {
+  console.error(`\x1b[31mError: Missing environment variables - ${missingVars.join(', ')}`)
+  process.exit(1)
+}
+
 function contentstackClient (authtoken = null) {
   var params = { host: process.env.HOST, defaultHostName: process.env.DEFAULTHOST }
   if (authtoken) {