git ssb

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require('setimmediate')
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var test = require('tape')
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var MutantArray = require('../array')
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var MutantValue = require('../value')
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test('Observable returns contents when called ', function(t) {
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  var array = MutantArray(['cat'])
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  var actual = array()
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  t.deepEqual(actual, ['cat'])
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  t.end()
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})
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test('Observable calls subscribe with latest when updated with set', function(t) {
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  var expected = ['dog']
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  var array = MutantArray(['cat'])
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  array(actual => {
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    t.deepEqual(actual, expected)
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    t.end()
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  })
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  array.set(expected)
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})
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test('Observable calls multiple subscribers with latest when updated with set', function(t) {
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  t.plan(2)
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  var expected = ['dog']
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  var array = MutantArray(['cat'])
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  array(actual => {
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    t.deepEqual(actual, expected)
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  })
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  array(actual => {
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    t.deepEqual(actual, expected)
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  })
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  array.set(expected)
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})
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test('Array will call subscriber when an observable in the array is updated', function(t) {
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  var obs = MutantValue(1)
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  var array = MutantArray([obs])
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  array(arr => {
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    actual = arr[0] 
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    t.equal(actual, 2)
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    t.end()
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  })
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  obs.set(2)
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})
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test('#push inserts a new element and calls subscriber', function(t) {
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  var expected = ['cat','dog']
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  var array = MutantArray(['cat'])
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  array(actual => {
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    t.deepEqual(actual, expected)
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    t.end()
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  })
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  array.push('dog')
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})
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test('#insert inserts element at index and calls subscriber', function(t) {
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  var expected = ['dog', 'cat']
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  var array = MutantArray(['cat'])
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  array(actual => {
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    t.deepEqual(actual, expected)
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    t.end()
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  })
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  array.insert('dog', 0)
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})
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test('#delete removes basic element and calls subscriber', function(t) {
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  var expected = ['dog']
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  var array = MutantArray(['cat', 'dog'])
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  array(actual => {
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    t.deepEqual(actual, expected)
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    t.end()
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  })
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  array.delete('cat')
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})
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test('#delete when deleting an observable in an array, remaining observables still call their subscribers', function(t) {
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  t.plan(3)
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  var cat = MutantValue('cat')
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  cat(t.ok)
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  var dog = MutantValue('dog')
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  dog(t.fail)
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  var array = MutantArray([cat, dog])
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  array(t.ok)
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  array.delete(dog) //array will emit
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  cat.set('Kool kat') //array and cat will emit.
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})
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