git ssb

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require('setimmediate')
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var test = require('tape')
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var computed = require('../computed')
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var resolve = require('../resolve')
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var Value = require('../value')
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test('computed get accessor', function(t) {
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  var value = Value(1)
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  var obs = computed(value, x => x * 100)
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  t.equal(resolve(obs), 100)
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  value.set(2)
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  t.equal(resolve(obs), 200)
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  t.end()
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})
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test('computed lazy watch', function(t) {
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  var value = Value(1)
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  var obs = computed(value, x => x * 100)
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  t.equal(resolve(obs), 100)
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  var observedValues = []
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  obs(x => observedValues.push(x))
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  value.set(2)
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  t.deepEqual(observedValues, [200])
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  t.end()
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})
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test('computed lazy watch with `get` race condition', function(t) {
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  var value = Value(1)
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  var final = Value()
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  var obs = computed(value, x => x * 100)
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  t.equal(resolve(obs), 100)
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  value(x => {
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    resolve(obs) // resolve obs inside of observer
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  })
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  obs(final.set)
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  value.set(2)
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  t.deepEqual(resolve(final), 200)
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  t.end()
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})
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test('computed inner update in non-live mode', function (t) {
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  var innerValue = Value(1)
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  var value = Value(innerValue)
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  var obs = computed(value, x => x)
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  t.deepEqual(obs(), 1)
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  setImmediate(() => {
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    innerValue.set(2)
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    t.deepEqual(obs(), 2)
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    t.end()
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  })
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})
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