4.0.1 • Published 4 years ago
chai-struct v4.0.1
chai-struct
Simple, readable, structural type assertions for Chai.
Usage
Verify that data has a given structure.
import chai, { expect } from 'chai'
import { chaiStruct } from 'chai-struct'
chai.use(chaiStruct)
describe('my data', () => {
const fanbois = {
id: 1,
groupName: 'JS Fanbois',
members: [
{ username: 'brendaneich' },
{ username: 'douglascrockford' },
{ username: true } // <- this ain't right
]
}
it('has the correct structure?', () => {
expect(fanbois).to.have.structure({
id: Number,
groupName: String,
members: [{ username: String }]
})
/**
* 1) my data has the correct structure?:
* AssertionError: Unexpected structure:
* {
* "members": {
* "2": {
* "username": {
* "actual": "Boolean",
* "expected": "String",
* "value": "true"
* }
* }
* }
* }
*/
})
})
Supports Optional
, Nullable
, and Any
types from type-diff
.
import { chaiStruct, Optional, Nullable, Any } from 'chai-struct'
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