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嗨，我正在尝试使用 proxyquire 在我的控制器中模拟模型。但是由于某种原因，当尝试注入模拟时，正在调用原始文件。

这就是控制器内部需要我的模型的方式：

var Product = require('./product.model');

这就是我的方式，试图存根模型

  var proxyquire = require('proxyquire').noCallThru().noPreserveCache();
  var productsStub = {findAsync: sinon.stub()};
  productsStub.findAsync.resolves(mockProducts);
  var mockProducts = [{_id:'0001',title: 'title', price: 123, description: 'le description'}];
  var productController = proxyquire('./product.controller',{'./product.model':productsStub});

但是当我运行我的测试时，我得到了这个错误

Running "mochaTest:unit" (mochaTest) task
>> Mocha exploded!
>> OverwriteModelError: Cannot overwrite `Product` model once compiled.
>>     at Mongoose.model (/Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/mongoose/lib/index.js:360:13)
>>     at Object.<anonymous> (/Users/victor/Documents/projects/estudo/mean/meanshop/server/api/product/product.model.js:15:27)
>>     at Module._compile (module.js:409:26)
>>     at normalLoader (/Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/babel-core/lib/api/register/node.js:199:5)
>>     at Object.require.extensions.(anonymous function) [as .js] (/Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/babel-core/lib/api/register/node.js:216:7)
>>     at Module.load (module.js:343:32)
>>     at Function.Module._load (module.js:300:12)
>>     at Module.require (module.js:353:17)
>>     at require (internal/module.js:12:17)
>>     at Object.<anonymous> (/Users/victor/Documents/projects/estudo/mean/meanshop/server/api/product/product.model.spec.js:1:15)
>>     at Module._compile (module.js:409:26)
>>     at normalLoader (/Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/babel-core/lib/api/register/node.js:199:5)
>>     at Object.require.extensions.(anonymous function) [as .js] (/Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/babel-core/lib/api/register/node.js:216:7)
>>     at Module.load (module.js:343:32)
>>     at Function.Module._load (module.js:300:12)
>>     at Module.require (module.js:353:17)
>>     at require (internal/module.js:12:17)
>>     at /Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/mocha/lib/mocha.js:220:27
>>     at Array.forEach (native)
>>     at Mocha.loadFiles (/Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/mocha/lib/mocha.js:217:14)
>>     at MochaWrapper.run (/Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/grunt-mocha-test/tasks/lib/MochaWrapper.js:51:15)
>>     at /Users/victor/Documents/projects/estudo/mean/meanshop/node_modules/grunt-mocha-test/tasks/mocha-test.js:86:20

我的问题是，如果理论上不会调用原始 products.model.js 模块，为什么我会得到这个。

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1 回答 1

1

proxyquire 不会存根未列出的模块，它们将像往常一样被需要，因此看起来您在 product.controller 中有更多依赖项，并且它们通常都是必需的。

除了为 proxyquire 提供完整的存根之外，我找不到很好的解决方案。

于 2016-10-17T15:17:37.377 回答