Mocha JS:如何在规范中重用断言?

问题描述

我正在使用Mocha bdd进行单元测试.

I'm using Mocha bdd for unit testing.

在我的规范内，多个测试用例使用相同的断言.

Within my specifications, multiple test cases make use of the same assertions.

我想将这些共享的断言放入一个可重用的块中.

I would like to pull these shared assertions out into a reusable block.

我该怎么做?

推荐答案

以下是参数化测试的示例:

Here is an example of parameterized tests:

   'use strict';

   var assert    = require('chai').assert;
   var pascalize = require('inflection/pascalize');
   var providers = [
      { name: 'Single Word',  input: 'commons',             output: 'Commons' },
      { name: 'Single Space', input: 'creative commons',    output: 'CreativeCommons' },
      { name: 'Single Colon', input: 'creative:commons',    output: 'CreativeCommons' },
      { name: 'Double Colon', input: 'creative::commons',   output: 'CreativeCommons' },
      { name: 'Single Slash', input: 'creative/commons',    output: 'CreativeCommons' },
      { name: 'Space & Dots', input: 'creative commons...', output: 'CreativeCommons' },
   ];

   describe('pascalize', function () {

      providers.forEach(function (provider) {
         it(provider.name, function () {
            var input  = provider.input;
            var output = provider.output;

            assert(pascalize(input) === output);
         });
      });

   });

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