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183 lines (155 loc) · 4.67 KB
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const mobx = require("../../src/mobx")
const {
has,
autorun,
when,
set,
remove,
values,
runInAction,
entries,
reaction,
observable,
extendObservable,
$mobx
} = mobx
test("keys should be observable when extending", () => {
const todos = observable({})
const todoTitles = []
reaction(
() => Object.keys(todos).map(key => `${key}: ${todos[key]}`),
titles => todoTitles.push(titles.join(","))
)
runInAction(() => {
Object.assign(todos, {
lewis: "Read Lewis",
chesterton: "Be mind blown by Chesterton"
})
})
expect(todoTitles).toEqual(["lewis: Read Lewis,chesterton: Be mind blown by Chesterton"])
Object.assign(todos, { lewis: "Read Lewis twice" })
Object.assign(todos, { coffee: "Grab coffee" })
expect(todoTitles).toEqual([
"lewis: Read Lewis,chesterton: Be mind blown by Chesterton",
"lewis: Read Lewis twice,chesterton: Be mind blown by Chesterton",
"lewis: Read Lewis twice,chesterton: Be mind blown by Chesterton,coffee: Grab coffee"
])
})
test("toJS respects key changes", () => {
const todos = observable({})
const serialized = []
mobx.autorun(() => {
serialized.push(JSON.stringify(mobx.toJS(todos)))
})
runInAction(() => {
Object.assign(todos, {
lewis: "Read Lewis",
chesterton: "Be mind blown by Chesterton"
})
})
Object.assign(todos, { lewis: "Read Lewis twice" })
Object.assign(todos, { coffee: "Grab coffee" })
expect(serialized).toEqual([
"{}",
'{"lewis":"Read Lewis","chesterton":"Be mind blown by Chesterton"}',
'{"lewis":"Read Lewis twice","chesterton":"Be mind blown by Chesterton"}',
'{"lewis":"Read Lewis twice","chesterton":"Be mind blown by Chesterton","coffee":"Grab coffee"}'
])
})
test("object - set, remove, values are reactive", () => {
const todos = observable({})
const snapshots = []
reaction(() => values(todos), values => snapshots.push(values))
expect("x" in todos).toBe(false)
expect(todos.x).toBe(undefined)
todos.x = 3
expect("x" in todos).toBe(true)
expect(todos.x).toBe(3)
delete todos.y
todos.z = 4
todos.x = 5
delete todos.z
expect(snapshots).toEqual([[3], [3, 4], [5, 4], [5]])
})
test("object - set, remove, entries are reactive", () => {
const todos = observable({})
const snapshots = []
reaction(() => entries(todos), entries => snapshots.push(entries))
expect("x" in todos).toBe(false)
expect(todos.x).toBe(undefined)
todos.x = 3
expect("x" in todos).toBe(true)
expect(todos.x).toBe(3)
delete todos.y
todos.z = 4
todos.x = 5
delete todos.z
expect(snapshots).toEqual([[["x", 3]], [["x", 3], ["z", 4]], [["x", 5], ["z", 4]], [["x", 5]]])
})
test("object - set, remove, keys are reactive", () => {
const todos = observable({ a: 3 })
const snapshots = []
reaction(() => Object.keys(todos), keys => snapshots.push(keys))
todos.x = 3
delete todos.y
todos.z = 4
todos.x = 5
delete todos.z
delete todos.a
expect(snapshots).toEqual([["a", "x"], ["a", "x", "z"], ["a", "x"], ["x"]])
})
test("dynamically adding properties should preserve the original modifiers of an object", () => {
const todos = observable.object(
{
a: { title: "get coffee" }
},
{},
{ deep: false }
)
expect(mobx.isObservable(todos.a)).toBe(false)
Object.assign(todos, { b: { title: "get tea" } })
expect(mobx.isObservable(todos.b)).toBe(false)
})
test("has and get are reactive", async () => {
const todos = observable({})
const p1 = when(() => {
debugger
return "x" in todos
})
const p2 = when(() => {
return todos.y === 3
})
setTimeout(() => {
Object.assign(todos, { x: false, y: 3 })
}, 100)
await p1
await p2
})
test("computed props are considered part of collections", () => {
const x = observable({
get y() {
return 3
}
})
expect(mobx.isComputedProp(x, "y")).toBe(true)
expect(x.y).toBe(3)
expect("y" in x).toBe(true) // `in` also checks proto type, so should return true!
expect(Object.keys(x)).toEqual([])
expect(values(x)).toEqual([])
expect(entries(x)).toEqual([])
})
test("#1739 - delete and undelete should work", () => {
const x = observable({})
const events = []
autorun(() => {
// events.push("a" in x)
events.push(has(x, "a"))
})
x.a = 1
x.a++
delete x.a
x.a = 5
delete x.a
x.a = 5
expect(events).toEqual([false, true, false, true, false, true])
})