Node.js 使用 NPM 三个 mocha+typescript 进行测试

可能需要您要导入的文件的扩展名.

由于各种原因， node 可能很难在没有它的情况下解决路径.

EDIT:个

我在我的PC上测试了他们的代码，并添加了一个针对"100"对象的测试用例.我还使用了.mjs扩展名而不是.js扩展名，以避免修改Package.json. 所有测试用例都没问题.

以下是代码:

JAVASCRIPT个

unit-test-2.specs.mjs个

import * as THREE from 'three';
import assert from "assert";
import {ConvexHull} from 'three/examples/jsm/math/ConvexHull.js';

describe('The THREE object', function ()
{
    it('should have a defined BasicShadowMap constant', function ()
    {
        assert.notEqual('undefined', THREE.BasicShadowMap);
    }),

    it('should be able to construct a Vector3 with default of x=0', function ()
    {
        const vec3 = new THREE.Vector3();
        assert.equal(0, vec3.x);
    })

    it("should have the convexHull tolerance set to -1", function ()
    {
        let cc = new ConvexHull();
        assert.equal(cc.tolerance, -1);
    })
})

To run the test:个

npm test

我正在添加Package.json，这样您就可以比较依赖项版本:

package.json个

{
  "scripts": {
    "test": "mocha --reporter list"
  },
  "devDependencies": {
    "mocha": "^10.2.0",
    "three": "^0.148.0"
  }
}

TYPESCRIPT个

"Three"模块包含一个类型声明文件"index.d.ts".但是，它不公开类ConvexHull，因为它不是三个核心代码的一部分.

因此，请将示例文件夹复制到您的根目录中(至少在NODE_MODULES之外).

在您的测试目录中创建一个tsconfig.json，这样它就不会影响您的主tsconfig:

???? test/tsconfig.json ↴个

{
    "compilerOptions": {
        "allowJs": true,
        "checkJs": false  // <- Optional
    }
}

创建.mocharc.json以使Mocha知道如何运行测试

???? .mocharc.json ↴个

{
    "extensions": ["ts"],
    "require": [
        "test/register-test.js"
    ],
    "spec": [
        "test/**/*.spec.ts"
    ]
}

创建.mocharc引用的文件:

???? register.js ↴个

require("ts-node").register({
    project: "test/tsconfig.json"
});

用于比较版本的Package.json

???? package.json ↴个

{
  "scripts": {
    "test": "mocha --config test/.mocharc.json"
  },
  "devDependencies": {
    "@types/mocha": "^7.0.2",
    "@types/node": "^18.11.18",
    "mocha": "^10.2.0",
    "ts-node": "^8.9.0",
    "typescript": "^3.8.3"
  },
  "dependencies": {
    "@types/three": "^0.148.0",
    "three": "^0.148.0"
  },
  "type": "commonjs"
}

更新测试:

???? test/unit/unit-test.js ↴个

import { strict as assert } from 'node:assert';
import * as THREE from 'three';
import {ConvexHull} from '../../examples/jsm/math/ConvexHull';

describe('The THREE object', function ()
{
    it('should have a defined BasicShadowMap constant', function ()
    {
        console.log(THREE.BasicShadowMap);
        assert.notEqual(undefined, THREE.BasicShadowMap);
    })

    it('should be able to construct a Vector3 with default of x=0', function ()
    {
        const vec3 = new THREE.Vector3();
        assert.equal(0, vec3.x);
    })
 
   it("should have the convexHull tolerance set to -1", function ()
    {
        let cc = new ConvexHull();
        assert.equal(cc.tolerance, -1);
    })
})

我有一个这样的 struct :

???? root
│
└───???? examples
│         └───???? jsm    
│                    └───???? math
│                               ???? ConvexHull.js
└───???? test
│          │─ ???? .mocharc.json
│          │─ ???? .register-test.js
│          │─ ???? .tsconfig.json
│          └───???? unit
│                  ???? unit-test.ts
│
│─ ???? package.json

运行测试

npm test

所有测试用例都将通过.

注:我可能会更新这篇文章