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reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["testing"],"created_at":"2026-02-07T01:33:30.400Z","updated_at":"2026-02-07T01:33:30.449Z","avatar_url":"https://github.com/ideaspaper.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# fnless\n\n## Description\n\n**fnless** is intended to make testing functionless code easier. The term functionless code used in this documentation refers to code like below.\n\n```javascript\n// index.js\nlet str = 'Hello world!';\nlet times = 5;\nfor (let i = 0; i \u003c times; i++) {\n  console.log(str);\n}\n```\n\nVariables whose value will be changed during the test (`str` and `times` in the example above) must be included in initialization. fnless will then wrap the code inside a `.testProcess` method, that way it can be tested. `.testProcess` will return string value, the same as what you get when running the source code above in terminal.\n\n```javascript\nconst fnless = require('fnless');\nconst mfnless = new fnless('./index.js', ['str', 'times']);\n\n// Change str's value to 'Happy Holiday!' and times' value to 7\nconsole.log(mfnless.testProcess({ str: 'Happy Holiday!', times: 7 }));\n```\n\n## Installation\n\nThis package can be installed using npm command `npm i fnless`.\n\n## Usage\n\n### `Constructor`\n\nConstructor of fnless class.\n\n```javascript\nconst fnless = require('fnless');\nconst mfnless = new fnless('./index.js', ['a', 'b']);\n```\n\n_**Parameters**_\n\n- `solutionPath`: Functionless code file path.\n- `keyVars`: An array of string. Each string represents a key variable's name in the functionless code.\n\n_**Return**_\n\nfnless object instance.\n\n### `isKeyVarsValid`\n\nCheck the validity of key variables in the functionless code. Invalid key variables means that some are missing or have been redeclared.\n\n```javascript\nconst fnless = require('fnless');\nconst mfnless = new fnless('./index.js', ['a', 'b']);\nif (mfnless.isKeyVarsValid()) {\n  console.log('Key variables valid');\n} else {\n  console.log('Key variables invalid');\n}\n```\n\n_**Parameters**_\n\nNothing\n\n_**Return**_\n\n- `true`: If key variables valid.\n- `false`: If key variables invalid.\n\n### `testProcess`\n\nWrapper of the functionless code. The value of key variables inside the functionless code can be changed according to `objParams`.\n\n```javascript\nconst fnless = require('fnless');\nconst mfnless = new fnless('./index.js', ['a', 'b']);\nconst result = mfnless.testProcess({ a: 'Acong', b: 10 });\n```\n\n_**Parameters**_\n\n- `objParams`: An object that contains keys that have been mentioned during object instantiation as `keyVars`.\n\n\u003e Since fnless uses `JSON.parse()`, there will be limitations when inserting array or object as value.\n\u003e\n\u003e- Data types that have been tested are `string`, `number` and `boolean`.\n\u003e- Falsy values that are safe to be put inside array or object are `false`, `0`, `''` and `null`.\n\u003e- Falsy value `-0` will be converted to `0`.\n\u003e- When `undefined` is used in array, it will be converted to `null`. When `undefined` is used in object, the key will be **skipped**.\n\u003e- Falsy value `NaN` will be converted to `null`.\n\u003e- Both `Infinity` and `-Infinity` cannot be used because they will be converted to `null`.\n\n_**Return**_\n\nSame string you get when running the functionless code in terminal.\n\n### `deleteInstrumentFile`\n\nDelete instrument file that was created by `.testProcess` method. This method should be called after all testing has been completed.\n\n_**Parameters**_\n\nNothing\n\n_**Return**_\n\nNothing\n\n## Example\n\nThis is an example when using fnless with **jest**.\n\n`index.js`\n\n```javascript\nvar scrollPos = 'bottom';\nvar agree = true;\nvar spyware = true;\n\n// Your code here\n```\n\n`__test__/index.test.js`\n\n```javascript\nconst fs = require('fs');\nconst fnless = require('fnless');\n\nconst mfnless = new fnless('./index.js', ['scrollPos', 'agree', 'spyware']);\n\nafterAll(() =\u003e {\n  mfnless.deleteInstrumentFile();\n});\n\nit('Key variables valid', () =\u003e {\n  expect(mfnless.isKeyVarsValid()).toBe(true);\n});\n\ndescribe(`Testing invalid inputs`, () =\u003e {\n  it(`scrollPos: 'bottom'`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'bottom' })).toMatch('Unknown error');\n  });\n  it(`agree: true`, async () =\u003e {\n    expect(mfnless.testProcess({ agree: true })).toMatch('Unknown error');\n  });\n  it(`spyware: true`, async () =\u003e {\n    expect(mfnless.testProcess({ spyware: true })).toMatch('Unknown error');\n  });\n  it(`scrollPos: '', agree: true, spyware: true`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: '', agree: true, spyware: true })).toMatch('Unknown error');\n  });\n});\n\ndescribe(`Testing valid inputs`, () =\u003e {\n  it(`scrollPos: 'bottom', agree: false, spyware: true`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'bottom', agree: false, spyware: true })).toMatch('Cannot proceed when not agree');\n  });\n  it(`scrollPos: 'bottom', agree: true, spyware: false`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'bottom', agree: true, spyware: false })).toMatch('Installing software');\n  });\n  it(`scrollPos: 'bottom', agree: true, spyware: true`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'bottom', agree: true, spyware: true })).toMatch('Installing software + spyware remover');\n  });\n  it(`scrollPos: 'qwerty', agree: true, spyware: true`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'qwerty', agree: true, spyware: true })).toMatch('You have to read all the clauses before accepting');\n  });\n  it(`scrollPos: 'qwerty', agree: true, spyware: false`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'qwerty', agree: true, spyware: false })).toMatch('You have to read all the clauses before accepting');\n  });\n  it(`scrollPos: 'qwerty', agree: false, spyware: true`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'qwerty', agree: false, spyware: true })).toMatch('You have to read all the clauses before accepting');\n  });\n  it(`scrollPos: 'qwerty', agree: false, spyware: false`, async () =\u003e {\n    expect(mfnless.testProcess({ scrollPos: 'qwerty', agree: false, spyware: false })).toMatch('You have to read all the clauses before accepting');\n  });\n});\n```","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fideaspaper%2Ffnless","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fideaspaper%2Ffnless","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fideaspaper%2Ffnless/lists"}