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it('should modify state', () => { | |
const { store, onModify } = createStore(); | |
let info; | |
store.subscribe(value => info = value); | |
onModify('Modified by click'); | |
expect(info).toEqual('Modified by click'); | |
}); |
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import { writable } from 'svelte/store'; | |
export const createStore = () => { | |
const state = writable('Click to modify'); | |
return { | |
state, | |
onModify(value) { | |
state.update(() => value); | |
} |
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describe('toUpperCase', () => { | |
it('should convert string to upper case', () => { | |
// Arrange | |
const toUpperCase = info => info.toUpperCase(); | |
// Act | |
const result = toUpperCase('Click to modify'); | |
// Assert | |
expect(result).toEqual('CLICK TO MODIFY'); |
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module.exports = { | |
transform: { | |
'^.+\\.js$': 'babel-jest', | |
'^.+\\.svelte$': 'svelte-jester' | |
} | |
}; |
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import { reactive, readonly } from 'vue'; | |
export const createStore = () => { | |
const state = reactive({ counter: 0 }); | |
const increment = () => state.counter++; | |
return { increment, state: readonly(state) }; | |
} |