Related to testing framework- Mocha - node.js

Question

I am developing simple DApps using Ethereum platform. And in this, I have used Mocha test framework but coming with this error. Please help...
E:\Tutorials\Blockchain\Practicle\Demo>npm run test
demo#1.0.0 test E:\Tutorials\Blockchain\Practicle\Demo
mocha
TypeError: Suite argument "title" must be a string. Received type "function"
at createInvalidArgumentTypeError (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\errors.js:158:13)
at new Suite (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\suite.js:45:15)
at Function.Suite.create (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\suite.js:26:17)
at Object.create (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\interfaces\common.js:128:27)
at context.describe.context.context (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\interfaces\bdd.js:42:27)
at Object.<anonymous> (E:\Tutorials\Blockchain\Practicle\Demo\test\inbox_test.js:13:1)
at Module._compile (internal/modules/cjs/loader.js:1138:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
at Module.load (internal/modules/cjs/loader.js:986:32)
at Function.Module._load (internal/modules/cjs/loader.js:879:14)
at Module.require (internal/modules/cjs/loader.js:1026:19)
at require (internal/modules/cjs/helpers.js:72:18)
at Object.exports.requireOrImport (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\esm-utils.js:20:12)
at Object.exports.loadFilesAsync (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\esm-utils.js:33:34)
at Mocha.loadFilesAsync (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\mocha.js:421:19)
at singleRun (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\cli\run-helpers.js:156:15)
at exports.runMocha (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\cli\run-helpers.js:225:10)
at Object.exports.handler (E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\lib\cli\run.js:366:11)
at E:\Tutorials\Blockchain\Practicle\Demo\node_modules\mocha\node_modules\yargs\lib\command.js:241:49
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! demo#1.0.0 test: `mocha`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the demo#1.0.0 test script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Prabhakar's\AppData\Roaming\npm-cache\_logs\2020-06-21T05_32_41_476Z-debug.log

Answer 1

I got my answer. And I m posting it so that it can be helpful others...
Earlier I have defined my describe method as:
describe(() => {
it("can pass the test", () => {
console.log(accounts);
});
});
Error Image
and here direct function I have passed instead of going for tittle first that's why mocha wasn't able to make it and return with error :
Suite argument "title" must be a string. Received type "function"
But after giving my contract method it accepts it as a tittle
describe( 'inbox', () => {
it("can pass the test", () => {
console.log(accounts);
});
});
Final Image