{"id":17844,"library":"node-test-helper","title":"Mocha Test Helper Suite","description":"node-test-helper is a legacy testing utility suite designed to simplify Mocha test setup by providing globally available assertions, mocking utilities, and test structure variables. Currently at version 1.0.0, the package's development appears to be abandoned, with no significant code updates in the past few years, despite a recent npm publish. Its approach relies heavily on CommonJS `require()` to inject global variables and functions (like `describe`, `it`, `expect`, `stub`, `TEST_NAME`) into the test environment, diverging significantly from modern modular JavaScript testing practices. It also presumes a `make`-based workflow for test execution rather than `npm scripts`, limiting its direct applicability in contemporary Node.js projects. Key differentiators (at the time of its creation) included simplifying boilerplate by abstracting away direct `require` calls for Mocha, Chai, and Sinon in individual test files, and offering an `init` command to scaffold a basic test directory structure and Makefile.","status":"abandoned","version":"1.0.0","language":"javascript","source_language":"en","source_url":"https://github.com/zand3rs/node-test-helper","tags":["javascript","node-test-helper","node_test_helper","test-helper","test_helper","test","helper"],"install":[{"cmd":"npm install node-test-helper","lang":"bash","label":"npm"},{"cmd":"yarn add node-test-helper","lang":"bash","label":"yarn"},{"cmd":"pnpm add node-test-helper","lang":"bash","label":"pnpm"}],"dependencies":[{"reason":"Peer dependency for the test runner framework.","package":"mocha","optional":false},{"reason":"Peer dependency for assertion library.","package":"chai","optional":false},{"reason":"Peer dependency for mocking and stubbing library.","package":"sinon","optional":false},{"reason":"Peer dependency for integrating Sinon with Chai assertions.","package":"sinon-chai","optional":false}],"imports":[{"note":"This CommonJS `require` call is essential. It initializes the testing environment and injects global variables (like `describe`, `it`, `expect`, `stub`, `TEST_NAME`, etc.) from Mocha, Chai, and Sinon into the global scope. Direct ESM `import` statements will not achieve the intended setup.","wrong":"import 'node-test-helper';","symbol":"Side Effect Global Setup","correct":"require(\"node-test-helper\");"},{"note":"`expect` is part of the Chai assertion library made globally available by `node-test-helper`'s side-effect require. It is not a named export from `node-test-helper` itself.","wrong":"import { expect } from 'node-test-helper';","symbol":"expect","correct":"// Available globally after require(\"node-test-helper\");"},{"note":"`TEST_NAME` is a global variable provided by `node-test-helper` to represent the current test file's name. It is not an importable symbol.","wrong":"import { TEST_NAME } from 'node-test-helper';","symbol":"TEST_NAME","correct":"// Available globally after require(\"node-test-helper\");"}],"quickstart":{"code":"const fs = require('fs');\nconst path = require('path');\n\n// Create a mock package.json to avoid 'make' install issues in a real quickstart\nfs.writeFileSync('package.json', JSON.stringify({ name: 'my-test-app', version: '1.0.0', devDependencies: { 'node-test-helper': '^1.0.0', 'mocha': '^10.0.0', 'chai': '^4.0.0', 'sinon': '^17.0.0', 'sinon-chai': '^3.0.0' } }), 'utf8');\n\n// Simulate npm install for quickstart context\nconsole.log('Simulating npm install...');\n// In a real environment, you'd run `npm install` here.\n// For a quickstart, we're assuming dependencies are met if we just show the test file.\n\n// Create a Makefile for 'make test'\nconst makefileContent = `\nTEST_RUNNER = ./node_modules/.bin/mocha\nTEST_OPTS = --recursive -t 30000 -R spec\n\ntest:\n\t@NODE_ENV=test $(TEST_RUNNER) $(TEST_OPTS) test/unit/\n\n.PHONY: test\n`;\nfs.writeFileSync('Makefile', makefileContent, 'utf8');\n\n// Create test directory structure\nfs.mkdirSync('test/unit', { recursive: true });\n\n// Create a sample test file\nconst testContent = `\n//-- test/unit/sample.test.js\nrequire(\"node-test-helper\");\n\ndescribe(TEST_NAME, function() {\n  describe(\"without callback\", function() {\n    it(\"should be successful\", function() {\n      expect(true).to.be.true;\n    });\n  });\n\n  describe(\"with callback\", function() {\n    it(\"should be successful asynchronously\", function(done) {\n      setTimeout(() => {\n        expect(false).to.be.false;\n        done();\n      }, 10);\n    });\n  });\n});\n`;\nfs.writeFileSync('test/unit/sample.test.js', testContent, 'utf8');\n\nconsole.log(\"To run the tests, first ensure mocha, chai, sinon, and sinon-chai are installed locally (e.g., 'npm install'). Then run: `make test`\");\nconsole.log(\"Expected output will show '2 passing'.\");\n","lang":"javascript","description":"This quickstart demonstrates how to set up and run a basic test file using `node-test-helper`'s global variable injection and a `make` command, including an asynchronous test example."},"warnings":[{"fix":"Ensure your test files are in a CommonJS context and use `require(\"node-test-helper\");` at the top of each test file where globals are needed.","message":"The package exclusively uses CommonJS `require()` for initialization and pollutes the global scope. It is not compatible with ES Modules (`import`/`export`) without significant configuration or a transpilation step, and attempting to use `import` will lead to `ReferenceError` or incorrect setup.","severity":"breaking","affected_versions":">=1.0.0"},{"fix":"While this is the intended usage, for new projects, consider using a modern testing framework and assertion library (e.g., Jest, Vitest, or Mocha/Chai with explicit imports) that avoids global pollution.","message":"This library relies on injecting test utilities (like `describe`, `it`, `expect`, `stub`) as global variables. This practice is generally considered an anti-pattern in modern JavaScript development due to potential conflicts, reduced code clarity, and difficulty in static analysis.","severity":"gotcha","affected_versions":">=1.0.0"},{"fix":"Adapt your project to use `make test`, or manually configure `npm scripts` to invoke the underlying `mocha` command with appropriate options, ensuring `node-test-helper` is required globally or via `--require` flags.","message":"Test execution is heavily coupled to `make` commands and a specific `Makefile` structure. Modern Node.js projects typically use `npm scripts` for test orchestration, offering greater portability and platform independence.","severity":"deprecated","affected_versions":">=1.0.0"},{"fix":"Always install `mocha`, `chai`, `sinon`, and `sinon-chai` as dev dependencies: `npm install --save-dev mocha chai sinon sinon-chai`.","message":"The package depends on `mocha`, `chai`, `sinon`, and `sinon-chai` being installed in your project. If these dependencies are missing, global functions like `describe` or `expect` will not be available, leading to `ReferenceError`s.","severity":"gotcha","affected_versions":">=1.0.0"}],"env_vars":null,"last_verified":"2026-04-23T00:00:00.000Z","next_check":"2026-07-22T00:00:00.000Z","problems":[{"fix":"Ensure `require(\"node-test-helper\");` is at the very top of your test file, or in a bootstrap file loaded before your tests.","cause":"The `node-test-helper` package, which sets up global test utilities, has not been properly loaded in your test file.","error":"ReferenceError: describe is not defined"},{"fix":"Run `node-test-helper init` to generate the default `Makefile` and test directory structure, or ensure you are executing `make test` from the directory containing your `Makefile`.","cause":"The `make` command cannot find a `Makefile` in the current directory, or the `Makefile` does not contain a `test` target.","error":"make: *** No rule to make target 'test'.  Stop."},{"fix":"Install the package locally: `npm install node-test-helper --save-dev`.","cause":"The `node-test-helper` package has not been installed in your project's `node_modules`.","error":"Error: Cannot find module 'node-test-helper'"},{"fix":"Install Chai as a development dependency: `npm install chai --save-dev`.","cause":"`node-test-helper` has been loaded, but the `chai` assertion library (which provides `expect`) is missing as a peer dependency.","error":"ReferenceError: expect is not defined"}],"ecosystem":"npm","meta_description":null,"install_score":null,"install_tag":null,"quickstart_score":null,"quickstart_tag":null}