> For the complete documentation index, see [llms.txt](https://gzqsjtu.gitbook.io/workspace/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gzqsjtu.gitbook.io/workspace/test.md).
# Test
## integration testing
## Unit testing
functional testing
## Jest
we hava a xxx.js
create a xxx.test.js
#### Using Babel
To use [Babel](http://babeljs.io/), install required dependencies via `yarn`
"dependencies": { "babel-core": "^6.26.3", "babel-jest": "^23.6.0", "babel-preset-env": "^1.7.0", "jest": "^24.0.0" }
#### Using webpack
Jest can be used in projects that use [webpack](https://webpack.github.io/) to manage assets, styles, and compilation.
### Common Matchers
The simplest way to test a value is with exact equality.
```
test('two plus two is four', () => {
expect(2 + 2).toBe(4);
});
```
[**Jasmine**](https://jasmine.github.io/)
```
describe("A suite is just a function", function() {
var a;
it("and so is a spec", function() {
a = true;
expect(a).toBe(true);
});
});444444
```
---
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