Files
soulspace/node_modules/store/plugins/events_test.js
2025-03-05 15:16:45 +08:00

72 lines
1.7 KiB
JavaScript

module.exports = {
plugin: require('./events'),
setup: setup,
}
function setup(store) {
test('events', function() {
store.set('foo', 'bar')
var expectationNone = _createExpectation('expectNone', undefined)
store.watch('foo', function(){})
var expectation1 = _createExpectation('foo', 'bar')
var expectationOnce = _createExpectation('foo', 'bar', true)
store.watch('foo', function(){})
expectation1.add('bar2')
expectationOnce.add('bar2')
store.set('foo', 'bar2')
expectation1.add(undefined)
store.remove('foo')
expectation1.add('bar3')
store.set('foo', 'bar3')
var expectation2 = _createExpectation('foo', 'bar3')
expectation1.add(undefined)
expectation2.add(undefined)
store.clearAll() // Should fire for foo
store.clearAll() // Should not fire anything
expectation1.unwatch()
expectation2.add('bar4')
store.set('foo', 'bar4') // Should only fire for expectation2
expectation1.check()
expectationOnce.check()
expectation2.check()
expectationNone.check()
expectation2.unwatch()
})
function _createExpectation(key, firstOldVal, useOnce) {
var expectation = {
values: [firstOldVal],
count: 0,
add: function(value) {
this.values.push(value)
},
check: function() {
assert(expectation.count + 1 == expectation.values.length)
},
unwatch: function() {
store.unwatch(watchId)
}
}
var watchId = (useOnce
? store.once(key, callback)
: store.watch(key, callback)
)
function callback(val, oldVal) {
expectation.count += 1
assert(expectation.values[expectation.count] == val)
assert(expectation.values[expectation.count - 1] == oldVal)
}
return expectation
}
}