66 lines
1.3 KiB
TypeScript
66 lines
1.3 KiB
TypeScript
import { value } from '../src/value'
|
|
import { effect, observable } from '../src/index'
|
|
|
|
describe('observer/value', () => {
|
|
it('should hold a value', () => {
|
|
const a = value(1)
|
|
expect(a.value).toBe(1)
|
|
a.value = 2
|
|
expect(a.value).toBe(2)
|
|
})
|
|
|
|
it('should be reactive', () => {
|
|
const a = value(1)
|
|
let dummy
|
|
effect(() => {
|
|
dummy = a.value
|
|
})
|
|
expect(dummy).toBe(1)
|
|
a.value = 2
|
|
expect(dummy).toBe(2)
|
|
})
|
|
|
|
it('should make nested properties reactive', () => {
|
|
const a = value({
|
|
count: 1
|
|
})
|
|
let dummy
|
|
effect(() => {
|
|
dummy = a.value.count
|
|
})
|
|
expect(dummy).toBe(1)
|
|
a.value.count = 2
|
|
expect(dummy).toBe(2)
|
|
})
|
|
|
|
it('should work like a normal property when nested in an observable', () => {
|
|
const a = value(1)
|
|
const obj = observable({
|
|
a,
|
|
b: {
|
|
c: a,
|
|
d: [a]
|
|
}
|
|
})
|
|
let dummy1
|
|
let dummy2
|
|
let dummy3
|
|
effect(() => {
|
|
dummy1 = obj.a
|
|
dummy2 = obj.b.c
|
|
dummy3 = obj.b.d[0]
|
|
})
|
|
expect(dummy1).toBe(1)
|
|
expect(dummy2).toBe(1)
|
|
expect(dummy3).toBe(1)
|
|
a.value++
|
|
expect(dummy1).toBe(2)
|
|
expect(dummy2).toBe(2)
|
|
expect(dummy3).toBe(2)
|
|
obj.a++
|
|
expect(dummy1).toBe(3)
|
|
expect(dummy2).toBe(3)
|
|
expect(dummy3).toBe(3)
|
|
})
|
|
})
|