How to run any test code?

[zydjohnHotmail]

Hi,
I have downloaded bitcore packages and use yarn to add 'mocha' for bitcore-lib. Here is the package.json: {
"name": "bitcore-lib",
"version": "10.0.5",
"description": "A pure and powerful JavaScript Bitcoin library.",
"author": "BitPay dev@bitpay.com",
"main": "index.js",
"scripts": {
"test": "gulp test",
"test:ci": "npm run test",
"coverage": "gulp coverage",
"build": "gulp",
"pub": "npm run build && npm publish"
},
"keywords": [
"bitcoin",
"transaction",
"address",
"p2p",
"ecies",
"cryptocurrency",
"blockchain",
"payment",
"bip21",
"bip32",
"bip37",
"bip69",
"bip70",
"multisig"
],
"repository": {
"type": "git",
"url": "https://github.com/bitpay/bitcore/tree/master/packages/bitcore-lib"
},
"browser": {
"request": "browser-request"
},
"dependencies": {
"bech32": "=2.0.0",
"bip-schnorr": "=0.6.4",
"bn.js": "=4.11.8",
"bs58": "^4.0.1",
"buffer-compare": "=1.1.1",
"elliptic": "^6.5.3",
"inherits": "=2.0.1",
"lodash": "^4.17.20"
},
"devDependencies": {
"bitcore-build": "^10.0.5",
"brfs": "^2.0.1",
"chai": "^4.2.0",
"gulp": "^4.0.0",
"mocha": "^10.2.0",
"sinon": "^7.1.1"
},
"license": "MIT",
"gitHead": "012cc0216a9bc6b195035855bd17149bad41acd1"
}
When I tried to run the whole test, I got the error: D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib>npm run test

bitcore-lib@10.0.5 test
gulp test

[17:24:27] No gulpfile found

D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib>
I need a gulpfile to run test, but since this package is a very big one, I want to run small tests first, so I tried to run test using mocha for only one file: transaction/input/input.js:
'use strict';

var should = require('chai').should();
var expect = require('chai').expect;
var _ = require('lodash');

// var bitcore = require('../../..');
var bitcore = require('../../../');
var errors = bitcore.errors;
var PrivateKey = bitcore.PrivateKey;
var Address = bitcore.Address;
var Script = bitcore.Script;
var Networks = bitcore.Networks;
var Input = bitcore.Transaction.Input;

describe('Transaction.Input', function() {

var privateKey = new PrivateKey('KwF9LjRraetZuEjR8VqEq539z137LW5anYDUnVK11vM3mNMHTWb4');
var publicKey = privateKey.publicKey;
var address = new Address(publicKey, Networks.livenet);
var output = {
address: '33zbk2aSZYdNbRsMPPt6jgy6Kq1kQreqeb',
prevTxId: '66e64ef8a3b384164b78453fa8c8194de9a473ba14f89485a0e433699daec140',
outputIndex: 0,
script: new Script(address),
satoshis: 1000000
};
var coinbase = {
prevTxId: '0000000000000000000000000000000000000000000000000000000000000000',
outputIndex: 0xFFFFFFFF,
script: new Script(),
satoshis: 1000000
};

var coinbaseJSON = JSON.stringify({
prevTxId: '0000000000000000000000000000000000000000000000000000000000000000',
outputIndex: 4294967295,
script:''
});

var otherJSON = JSON.stringify({
txidbuf: 'a477af6b2667c29670467e4e0728b685ee07b240235771862318e29ddbe58458',
txoutnum: 0,
seqnum:4294967295,
script: '71 0x3044022006553276ec5b885ddf5cc1d79e1e3dadbb404b60ad4cc00318e21565' +
'4f13242102200757c17b36e3d0492fb9cf597032e5afbea67a59274e64af5a05d12e5ea2303901 ' +
'33 0x0223078d2942df62c45621d209fab84ea9a7a23346201b7727b9b45a29c4e76f5e',
output: {
'satoshis':100000,
'script':'OP_DUP OP_HASH160 20 0x88d9931ea73d60eaf7e5671efc0552b912911f2a ' +
'OP_EQUALVERIFY OP_CHECKSIG'
}
});

it('has abstract methods: "getSignatures", "isFullySigned", "addSignature", "clearSignatures"', function() {
var input = new Input(output);
_.each(['getSignatures', 'isFullySigned', 'addSignature', 'clearSignatures'], function(method) {
expect(function() {
return inputmethod;
}).to.throw(errors.AbstractMethodInvoked);
});
});
it('detects coinbase transactions', function() {
new Input(output).isNull().should.equal(false);
var ci = new Input(coinbase);
ci.isNull().should.equal(true);
});

describe('instantiation', function() {
it('works without new', function() {
var input = Input();
should.exist(input);
});
it('fails with no script info', function() {
expect(function() {
var input = new Input({});
input.toString();
}).to.throw('Need a script to create an input');
});
it('fromObject should work', function() {
var jsonData = JSON.parse(coinbaseJSON);
var input = Input.fromObject(jsonData);
should.exist(input);
input.prevTxId.toString('hex').should.equal(jsonData.prevTxId);
input.outputIndex.should.equal(jsonData.outputIndex);
});
it('fromObject should work', function() {
var input = Input.fromObject(JSON.parse(coinbaseJSON));
var obj = input.toObject();
Input.fromObject(obj).should.deep.equal(input);
obj.script = 42;
Input.fromObject.bind(null, obj).should.throw('Invalid argument type: script');
});
});

it('_estimateSize returns correct size', function() {
var input = new Input(output);
input._estimateSize().should.equal(66);
});

describe('handling the BIP68 (sequenceNumber locktime)', function() {
var blockHeight = 3434;
it('handles a null locktime', function() {
var input = new Input(output);
expect(input.getLockTime()).to.equal(null);
});
it('handles a simple seconds example', function() {
var input = new Input()
.lockForSeconds(1e5);

  var expected = (parseInt(1e5 / 512) * 512) ;
  input.getLockTime().should.deep.equal(expected);

  expected = (Math.floor(expected/512) ) | Input.SEQUENCE_LOCKTIME_TYPE_FLAG;
  input.sequenceNumber.should.equal(expected | Input.SEQUENCE_LOCKTIME_TYPE_FLAG);
});
it('accepts a block height', function() {
  var input = new Input()
    .lockUntilBlockHeight(blockHeight);

  input.sequenceNumber.should.equal(blockHeight);
  input.getLockTime().should.deep.equal(blockHeight);
});
it('fails if the block height is too high', function() {
  expect(function() {
    return new Input().lockUntilBlockHeight(5e8);
  }).to.throw(errors.Transaction.Input.BlockHeightOutOfRange);
});
it('fails if the block height is negative', function() {
  expect(function() {
    return new Input().lockUntilBlockHeight(-1);
  }).to.throw(errors.Transaction.Input.BlockHeightOutOfRange);
});

});
});
But when I run the following command for testing, I got error: D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\test\transaction\input>npx mocha input.js

Error: Cannot find module 'D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\index.js'. Please verify that the package.json has a valid "main" entry
at tryPackage (node:internal/modules/cjs/loader:440:19)
at Module._findPath (node:internal/modules/cjs/loader:689:18)
at Module._resolveFilename (node:internal/modules/cjs/loader:1058:27)
at Module._load (node:internal/modules/cjs/loader:925:27)
at Module.require (node:internal/modules/cjs/loader:1139:19)
at require (node:internal/modules/helpers:121:18)
at Object. (D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\test\transaction\input\input.js:8:15)
at Module._compile (node:internal/modules/cjs/loader:1257:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1311:10)
at Module.load (node:internal/modules/cjs/loader:1115:32)
at Module._load (node:internal/modules/cjs/loader:962:12)
at ModuleWrap. (node:internal/modules/esm/translators:165:29)
at ModuleJob.run (node:internal/modules/esm/module_job:192:25)
at async DefaultModuleLoader.import (node:internal/modules/esm/loader:246:24)
at async importModuleDynamicallyWrapper (node:internal/vm/module:428:15)
at async formattedImport (D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\node_modules\mocha\lib\nodejs\esm-utils.js:9:14)
at async exports.requireOrImport (D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\node_modules\mocha\lib\nodejs\esm-utils.js:42:28)
at async exports.loadFilesAsync (D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\node_modules\mocha\lib\nodejs\esm-utils.js:100:20)
at async singleRun (D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\node_modules\mocha\lib\cli\run-helpers.js:125:3)
at async exports.handler (D:\Qtum\bitcore-master\bitcore-master\packages\bitcore-lib\node_modules\mocha\lib\cli\run.js:370:5)
=> Any suggestion how can I run a single test code like the above, not the whole package, since it will show numerious errors.