最近研究单元测试,使用 vue-cli3 新建的项目,然后一直报错,其中错误如下
● Test suite failed to run
/Users/lyc/Desktop/study/vue/vue-jest1/tests/unit/about.spec.js:1
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import "core-js/modules/es6.array.find";
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Unexpected string
at ScriptTransformer._transformAndBuildScript (node_modules/jest-runtime/build/script_transformer.js:403:17)
Test Suites: 1 failed, 1 passed, 2 total
Tests: 1 passed, 1 total
Snapshots: 0 total
Time: 1.14s
Ran all test suites.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! vue-jest1@0.1.0 test:unit: `vue-cli-service test:unit`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the vue-jest1@0.1.0 test:unit script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/lyc/.npm/_logs/2019-06-19T04_20_25_882Z-debug.log
找了很久最终在 https://github.com/vuejs/vue-… 找到解决方案。
需要使用 ./node_modules/jest/bin/jest.js --clearCach
或者 npm jest --clearCach
,需要清除缓存?
然后再执行 npm run test:unit
,就可以了。
为了避免每次都需要手动清除,直接加载 package.json
文件里,
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"test:e2e": "vue-cli-service test:e2e",
"test:unit": "jest --clearCache && vue-cli-service test:unit"
},
这里添加 jest --ClearCach
即可。