node.js - 在 mocha 初始化和实际测试之间共享变量

Question

查看示例:

var app
describe('application', function() {
  beforeEach(function(done) {
    app = initialize()
  });

  afterEach(function(done) {
    app.close(done)
  });

  it('some interaction with app', function () {
    ///
  });
});

app 是全局变量，从风格角度来看这很糟糕，并且使得 initialize 不太有用。有更好的方法来共享 app 变量吗？

Answer 1

根据 share behaviours

Mocha currently has no concept of a "shared behaviour" however the "contexts" facilitate this feature.

因此，对于您的情况，可以按如下方式完成，

describe('application', function() {
  var app;
  beforeEach(function(done) {
    app = initialize()
  });

  afterEach(function(done) {
    app.close(done)
  });

  it('some interaction with app', function () {
    ///
  });
});

顺便说一句，讨论了类似的问题 here