module('lunr.SortedSet')

test('adding an element that doesn\'t exist into the set', function () {
  var set = new lunr.SortedSet

  equal(set.length, 0)
  set.add('foo')
  equal(set.length, 1)
})

test('adding an element that does exist into the set', function () {
  var set = new lunr.SortedSet
  set.add('foo')
  equal(set.length, 1)

  set.add('foo')
  equal(set.length, 1)
})

test('sort is maintained when adding elements to the set', function () {
  var set = new lunr.SortedSet

  set.add('b')
  set.add('d')
  set.add('a')
  set.add('c')

  deepEqual(set.elements, ['a', 'b', 'c', 'd'])
})

test('adding more than one element to the set in one go', function () {
  var set = new lunr.SortedSet
  set.add('foo', 'bar', 'baz', 'foo')
  equal(set.length, 3)
})

test('converting to an array', function () {
  var set = new lunr.SortedSet
  set.add('foo', 'bar', 'baz')
  deepEqual(set.toArray(), ['bar', 'baz', 'foo'])
})

test('mapping the set', function () {
  var set = new lunr.SortedSet, a = []

  set.add('foo', 'bar')

  set.forEach(function (t) { a.push(t) })

  deepEqual(a, ['bar', 'foo'])
})

test('getting the index of an item in the set', function () {
  var set = new lunr.SortedSet

  equal(set.indexOf('non member'), -1)

  set.add('foo')

  equal(set.indexOf('foo'), 0)
  equal(set.indexOf('non member'), -1)

  set.add('bar')

  equal(set.indexOf('foo'), 1)
  equal(set.indexOf('bar'), 0)
  equal(set.indexOf('non member'), -1)
})

test('intersecting this set with another set', function () {
  var set1 = new lunr.SortedSet,
      set2 = new lunr.SortedSet,
      setIntersect

  set1.add('foo', 'bar')
  set2.add('baz', 'foo')

  setIntersect = set1.intersect(set2)

  ok(setIntersect.indexOf('foo') > -1)
  ok(setIntersect.indexOf('bar') == -1)
  ok(setIntersect.indexOf('baz') == -1)
})

test('unioning this set with another set', function () {
  var set1 = new lunr.SortedSet,
      set2 = new lunr.SortedSet,
      setUnion

  set1.add('foo', 'bar')
  set2.add('baz', 'foo')

  setUnion = set1.union(set2)

  ok(setUnion.indexOf('foo') > -1)
  ok(setUnion.indexOf('bar') > -1)
  ok(setUnion.indexOf('baz') > -1)

  equal(setUnion.length ,3)
})

test('serialising', function () {
  var emptySet = new lunr.SortedSet,
      nonEmptySet = new lunr.SortedSet

  nonEmptySet.add(1,2,3,4)

  deepEqual(emptySet.toJSON(), [])
  deepEqual(nonEmptySet.toJSON(), [1,2,3,4])
})

test('loading serialised dump', function () {
  var serialisedData = [1,2,3,4],
      set = lunr.SortedSet.load(serialisedData)

  equal(set.length, 4)
  deepEqual(set.elements, [1,2,3,4])
})