import { expect } from 'chai' // 用指定的 mutaions 测试 action 的辅助函数 const testAction = (action, args, state, expectedMutations, done) => { let count = 0 // 模拟提交 const commit = (type, payload) => { const mutation = expectedMutations[count] expect(mutation.type).to.equal(type) if (payload) { expect(mutation.payload).to.deep.equal(payload) } count++ if (count >= expectedMutations.length) { done() } } // 用模拟的 store 和参数调用 action action({ commit, state }, ...args) // 检查是否没有 mutation 被 dispatch if (expectedMutations.length === 0) { expect(count).to.equal(0) done() } } export default { testAction }