func TestHoltWinters_RoundTime(t *testing.T) {
maxTime := time.Unix(0, influxql.MaxTime).Round(time.Second).UnixNano()
data := []influxql.FloatPoint{
{Time: maxTime - int64(5*time.Second), Value: 1},
{Time: maxTime - int64(4*time.Second+103*time.Millisecond), Value: 10},
{Time: maxTime - int64(3*time.Second+223*time.Millisecond), Value: 2},
{Time: maxTime - int64(2*time.Second+481*time.Millisecond), Value: 11},
}
hw := influxql.NewFloatHoltWintersReducer(2, 2, true, time.Second)
for _, p := range data {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: maxTime - int64(5*time.Second), Value: 1},
{Time: maxTime - int64(4*time.Second), Value: 10.006729104838234},
{Time: maxTime - int64(3*time.Second), Value: 1.998341814469269},
{Time: maxTime - int64(2*time.Second), Value: 10.997858830631172},
{Time: maxTime - int64(1*time.Second), Value: 4.085860238030013},
{Time: maxTime - int64(0*time.Second), Value: 11.35713604403339},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_MaxTime(t *testing.T) {
data := []influxql.FloatPoint{
{Time: influxql.MaxTime - 1, Value: 1},
{Time: influxql.MaxTime, Value: 2},
}
hw := influxql.NewFloatHoltWintersReducer(1, 0, true, 1)
for _, p := range data {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: influxql.MaxTime - 1, Value: 1},
{Time: influxql.MaxTime, Value: 2.001516944066403},
{Time: influxql.MaxTime + 1, Value: 2.5365248972488343},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func (n *chainnode) holtWinters(field string, h, m int64, interval time.Duration, includeFitData bool) *InfluxQLNode {
i := newInfluxQLNode("holtWinters", field, n.Provides(), BatchEdge, ReduceCreater{
CreateFloatReducer: func() (influxql.FloatPointAggregator, influxql.FloatPointEmitter) {
fn := influxql.NewFloatHoltWintersReducer(int(h), int(m), includeFitData, interval)
return fn, fn
},
CreateIntegerFloatReducer: func() (influxql.IntegerPointAggregator, influxql.FloatPointEmitter) {
fn := influxql.NewFloatHoltWintersReducer(int(h), int(m), includeFitData, interval)
return fn, fn
},
})
// Always use point times for Holt Winters
i.PointTimes = true
n.linkChild(i)
return i
}
func TestHoltWinters_RoundTime(t *testing.T) {
maxTime := time.Unix(0, influxql.MaxTime).Round(time.Second).UnixNano()
data := []influxql.FloatPoint{
{Time: maxTime - int64(5*time.Second+50*time.Millisecond), Value: 1},
{Time: maxTime - int64(4*time.Second+103*time.Millisecond), Value: 10},
{Time: maxTime - int64(3*time.Second+223*time.Millisecond), Value: 2},
{Time: maxTime - int64(2*time.Second+481*time.Millisecond), Value: 11},
}
hw := influxql.NewFloatHoltWintersReducer(2, 2, true, time.Second)
for _, p := range data {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: maxTime - int64(5*time.Second), Value: 1},
{Time: maxTime - int64(4*time.Second), Value: 10.499068390422073},
{Time: maxTime - int64(3*time.Second), Value: 2.002458220927272},
{Time: maxTime - int64(2*time.Second), Value: 10.499826428426315},
{Time: maxTime - int64(1*time.Second), Value: 2.898110014107811},
{Time: maxTime - int64(0*time.Second), Value: 10.499786614238138},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_USPopulation_Missing(t *testing.T) {
series := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: 5.31},
{Time: 3, Value: 7.24},
{Time: 4, Value: 9.64},
{Time: 5, Value: 12.90},
{Time: 6, Value: 17.10},
{Time: 7, Value: 23.20},
{Time: 8, Value: 31.40},
{Time: 10, Value: 50.20},
{Time: 11, Value: 62.90},
{Time: 12, Value: 76.00},
{Time: 13, Value: 92.00},
{Time: 15, Value: 122.80},
{Time: 16, Value: 131.70},
{Time: 17, Value: 151.30},
{Time: 19, Value: 203.20},
}
hw := influxql.NewFloatHoltWintersReducer(10, 0, true, 1)
for _, p := range series {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: 4.8931364428135105},
{Time: 3, Value: 6.962653629047061},
{Time: 4, Value: 10.056207765903274},
{Time: 5, Value: 14.18435088129532},
{Time: 6, Value: 19.362939306110846},
{Time: 7, Value: 25.613247940326584},
{Time: 8, Value: 32.96213087008264},
{Time: 9, Value: 41.442230043017204},
{Time: 10, Value: 51.09223428526052},
{Time: 11, Value: 61.95719155158485},
{Time: 12, Value: 74.08887794968567},
{Time: 13, Value: 87.54622778052787},
{Time: 14, Value: 102.39582960014131},
{Time: 15, Value: 118.7124941463221},
{Time: 16, Value: 136.57990089987464},
{Time: 17, Value: 156.09133107941278},
{Time: 18, Value: 177.35049601833734},
{Time: 19, Value: 200.472471161683},
{Time: 20, Value: 225.58474737097785},
{Time: 21, Value: 252.82841286206823},
{Time: 22, Value: 282.35948095261017},
{Time: 23, Value: 314.3503808953992},
{Time: 24, Value: 348.99163145856954},
{Time: 25, Value: 386.49371962730555},
{Time: 26, Value: 427.08920989407727},
{Time: 27, Value: 471.0351131332573},
{Time: 28, Value: 518.615548088049},
{Time: 29, Value: 570.1447331101863},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_USPopulation(t *testing.T) {
series := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: 5.31},
{Time: 3, Value: 7.24},
{Time: 4, Value: 9.64},
{Time: 5, Value: 12.90},
{Time: 6, Value: 17.10},
{Time: 7, Value: 23.20},
{Time: 8, Value: 31.40},
{Time: 9, Value: 39.80},
{Time: 10, Value: 50.20},
{Time: 11, Value: 62.90},
{Time: 12, Value: 76.00},
{Time: 13, Value: 92.00},
{Time: 14, Value: 105.70},
{Time: 15, Value: 122.80},
{Time: 16, Value: 131.70},
{Time: 17, Value: 151.30},
{Time: 18, Value: 179.30},
{Time: 19, Value: 203.20},
}
hw := influxql.NewFloatHoltWintersReducer(10, 0, true, 1)
for _, p := range series {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: 4.957405463559748},
{Time: 3, Value: 7.012210102535647},
{Time: 4, Value: 10.099589257439924},
{Time: 5, Value: 14.229926188104242},
{Time: 6, Value: 19.418878968703797},
{Time: 7, Value: 25.68749172281409},
{Time: 8, Value: 33.062351305731305},
{Time: 9, Value: 41.575791076125206},
{Time: 10, Value: 51.26614395589263},
{Time: 11, Value: 62.178047564264595},
{Time: 12, Value: 74.36280483872488},
{Time: 13, Value: 87.87880423073163},
{Time: 14, Value: 102.79200429905801},
{Time: 15, Value: 119.17648832929542},
{Time: 16, Value: 137.11509549747296},
{Time: 17, Value: 156.70013608313175},
{Time: 18, Value: 178.03419933863566},
{Time: 19, Value: 201.23106385518594},
{Time: 20, Value: 226.4167216525905},
{Time: 21, Value: 253.73052878285205},
{Time: 22, Value: 283.32649700397553},
{Time: 23, Value: 315.37474308085984},
{Time: 24, Value: 350.06311454009256},
{Time: 25, Value: 387.59901328556873},
{Time: 26, Value: 428.21144141893404},
{Time: 27, Value: 472.1532969569147},
{Time: 28, Value: 519.7039509590035},
{Time: 29, Value: 571.1721419458248},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_AusTourists(t *testing.T) {
hw := influxql.NewFloatHoltWintersReducer(10, 4, false, 1)
// Dataset from http://www.inside-r.org/packages/cran/fpp/docs/austourists
austourists := []influxql.FloatPoint{
{Time: 1, Value: 30.052513},
{Time: 2, Value: 19.148496},
{Time: 3, Value: 25.317692},
{Time: 4, Value: 27.591437},
{Time: 5, Value: 32.076456},
{Time: 6, Value: 23.487961},
{Time: 7, Value: 28.47594},
{Time: 8, Value: 35.123753},
{Time: 9, Value: 36.838485},
{Time: 10, Value: 25.007017},
{Time: 11, Value: 30.72223},
{Time: 12, Value: 28.693759},
{Time: 13, Value: 36.640986},
{Time: 14, Value: 23.824609},
{Time: 15, Value: 29.311683},
{Time: 16, Value: 31.770309},
{Time: 17, Value: 35.177877},
{Time: 18, Value: 19.775244},
{Time: 19, Value: 29.60175},
{Time: 20, Value: 34.538842},
{Time: 21, Value: 41.273599},
{Time: 22, Value: 26.655862},
{Time: 23, Value: 28.279859},
{Time: 24, Value: 35.191153},
{Time: 25, Value: 41.727458},
{Time: 26, Value: 24.04185},
{Time: 27, Value: 32.328103},
{Time: 28, Value: 37.328708},
{Time: 29, Value: 46.213153},
{Time: 30, Value: 29.346326},
{Time: 31, Value: 36.48291},
{Time: 32, Value: 42.977719},
{Time: 33, Value: 48.901525},
{Time: 34, Value: 31.180221},
{Time: 35, Value: 37.717881},
{Time: 36, Value: 40.420211},
{Time: 37, Value: 51.206863},
{Time: 38, Value: 31.887228},
{Time: 39, Value: 40.978263},
{Time: 40, Value: 43.772491},
{Time: 41, Value: 55.558567},
{Time: 42, Value: 33.850915},
{Time: 43, Value: 42.076383},
{Time: 44, Value: 45.642292},
{Time: 45, Value: 59.76678},
{Time: 46, Value: 35.191877},
{Time: 47, Value: 44.319737},
{Time: 48, Value: 47.913736},
}
for _, p := range austourists {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: 49, Value: 51.85064132137853},
{Time: 50, Value: 43.26055282315273},
{Time: 51, Value: 41.827258044814464},
{Time: 52, Value: 54.3990354591749},
{Time: 53, Value: 54.62334472770803},
{Time: 54, Value: 45.57155693625209},
{Time: 55, Value: 44.06051240252263},
{Time: 56, Value: 57.30029870759433},
{Time: 57, Value: 57.53591513519172},
{Time: 58, Value: 47.999008139396096},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_AusTourists_Missing(t *testing.T) {
hw := influxql.NewFloatHoltWintersReducer(10, 4, false, 1)
// Dataset from http://www.inside-r.org/packages/cran/fpp/docs/austourists
austourists := []influxql.FloatPoint{
{Time: 1, Value: 30.052513},
{Time: 3, Value: 25.317692},
{Time: 4, Value: 27.591437},
{Time: 5, Value: 32.076456},
{Time: 6, Value: 23.487961},
{Time: 7, Value: 28.47594},
{Time: 9, Value: 36.838485},
{Time: 10, Value: 25.007017},
{Time: 11, Value: 30.72223},
{Time: 12, Value: 28.693759},
{Time: 13, Value: 36.640986},
{Time: 14, Value: 23.824609},
{Time: 15, Value: 29.311683},
{Time: 16, Value: 31.770309},
{Time: 17, Value: 35.177877},
{Time: 19, Value: 29.60175},
{Time: 20, Value: 34.538842},
{Time: 21, Value: 41.273599},
{Time: 22, Value: 26.655862},
{Time: 23, Value: 28.279859},
{Time: 24, Value: 35.191153},
{Time: 25, Value: 41.727458},
{Time: 26, Value: 24.04185},
{Time: 27, Value: 32.328103},
{Time: 28, Value: 37.328708},
{Time: 30, Value: 29.346326},
{Time: 31, Value: 36.48291},
{Time: 32, Value: 42.977719},
{Time: 34, Value: 31.180221},
{Time: 35, Value: 37.717881},
{Time: 36, Value: 40.420211},
{Time: 37, Value: 51.206863},
{Time: 38, Value: 31.887228},
{Time: 41, Value: 55.558567},
{Time: 42, Value: 33.850915},
{Time: 43, Value: 42.076383},
{Time: 44, Value: 45.642292},
{Time: 45, Value: 59.76678},
{Time: 46, Value: 35.191877},
{Time: 47, Value: 44.319737},
{Time: 48, Value: 47.913736},
}
for _, p := range austourists {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: 49, Value: 54.84533610387743},
{Time: 50, Value: 41.19329421863249},
{Time: 51, Value: 45.71673175112451},
{Time: 52, Value: 56.05759298805955},
{Time: 53, Value: 59.32337460282217},
{Time: 54, Value: 44.75280096850461},
{Time: 55, Value: 49.98865098113751},
{Time: 56, Value: 61.86084934967605},
{Time: 57, Value: 65.95805633454883},
{Time: 58, Value: 50.1502170480547},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_USPopulation_Missing(t *testing.T) {
series := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: 5.31},
{Time: 3, Value: 7.24},
{Time: 4, Value: 9.64},
{Time: 5, Value: 12.90},
{Time: 6, Value: 17.10},
{Time: 7, Value: 23.20},
{Time: 8, Value: 31.40},
{Time: 10, Value: 50.20},
{Time: 11, Value: 62.90},
{Time: 12, Value: 76.00},
{Time: 13, Value: 92.00},
{Time: 15, Value: 122.80},
{Time: 16, Value: 131.70},
{Time: 17, Value: 151.30},
{Time: 19, Value: 203.20},
}
hw := influxql.NewFloatHoltWintersReducer(10, 0, true, 1)
for _, p := range series {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: -0.48020223172549237},
{Time: 3, Value: 4.802781783666482},
{Time: 4, Value: 9.877595464844614},
{Time: 5, Value: 15.247582981982251},
{Time: 6, Value: 21.11408248318643},
{Time: 7, Value: 27.613033499005994},
{Time: 8, Value: 34.85894117561601},
{Time: 9, Value: 42.96187408308528},
{Time: 10, Value: 52.03593886054132},
{Time: 11, Value: 62.20424563556273},
{Time: 12, Value: 73.60229860599725},
{Time: 13, Value: 86.38069796377347},
{Time: 14, Value: 100.70760028319269},
{Time: 15, Value: 116.77117933639244},
{Time: 16, Value: 134.78222852768778},
{Time: 17, Value: 154.97699617972333},
{Time: 18, Value: 177.6203209232622},
{Time: 19, Value: 203.00912417351864},
{Time: 20, Value: 231.47631387044993},
{Time: 21, Value: 263.39515509958034},
{Time: 22, Value: 299.18416724280326},
{Time: 23, Value: 339.31261310834543},
{Time: 24, Value: 384.3066526673811},
{Time: 25, Value: 434.756242430451},
{Time: 26, Value: 491.3228711104303},
{Time: 27, Value: 554.748233097815},
{Time: 28, Value: 625.8639535249647},
{Time: 29, Value: 705.6024924601211},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_USPopulation(t *testing.T) {
series := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: 5.31},
{Time: 3, Value: 7.24},
{Time: 4, Value: 9.64},
{Time: 5, Value: 12.90},
{Time: 6, Value: 17.10},
{Time: 7, Value: 23.20},
{Time: 8, Value: 31.40},
{Time: 9, Value: 39.80},
{Time: 10, Value: 50.20},
{Time: 11, Value: 62.90},
{Time: 12, Value: 76.00},
{Time: 13, Value: 92.00},
{Time: 14, Value: 105.70},
{Time: 15, Value: 122.80},
{Time: 16, Value: 131.70},
{Time: 17, Value: 151.30},
{Time: 18, Value: 179.30},
{Time: 19, Value: 203.20},
}
hw := influxql.NewFloatHoltWintersReducer(10, 0, true, 1)
for _, p := range series {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: 1, Value: 3.93},
{Time: 2, Value: 4.666229883011407},
{Time: 3, Value: 7.582703219729101},
{Time: 4, Value: 11.38750857910578},
{Time: 5, Value: 16.061458362866013},
{Time: 6, Value: 21.60339677828295},
{Time: 7, Value: 28.028797969563485},
{Time: 8, Value: 35.36898516917276},
{Time: 9, Value: 43.67088460608491},
{Time: 10, Value: 52.99725850596854},
{Time: 11, Value: 63.42738609386119},
{Time: 12, Value: 75.05818203585376},
{Time: 13, Value: 88.00575972021298},
{Time: 14, Value: 102.40746333932526},
{Time: 15, Value: 118.42440883475055},
{Time: 16, Value: 136.24459021744897},
{Time: 17, Value: 156.08662531118478},
{Time: 18, Value: 178.20423430441988},
{Time: 19, Value: 202.89156636951475},
{Time: 20, Value: 230.48951480987003},
{Time: 21, Value: 261.3931906116184},
{Time: 22, Value: 296.0607589238543},
{Time: 23, Value: 335.0238840597938},
{Time: 24, Value: 378.900077509081},
{Time: 25, Value: 428.40730185977736},
{Time: 26, Value: 484.38125346495343},
{Time: 27, Value: 547.7958305836579},
{Time: 28, Value: 619.7873945146928},
{Time: 29, Value: 701.6835524758332},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}
func TestHoltWinters_AusTourists_Missing(t *testing.T) {
hw := influxql.NewFloatHoltWintersReducer(10, 4, false, 1)
// Dataset from http://www.inside-r.org/packages/cran/fpp/docs/austourists
austourists := []influxql.FloatPoint{
{Time: 1, Value: 30.052513},
{Time: 3, Value: 25.317692},
{Time: 4, Value: 27.591437},
{Time: 5, Value: 32.076456},
{Time: 6, Value: 23.487961},
{Time: 7, Value: 28.47594},
{Time: 9, Value: 36.838485},
{Time: 10, Value: 25.007017},
{Time: 11, Value: 30.72223},
{Time: 12, Value: 28.693759},
{Time: 13, Value: 36.640986},
{Time: 14, Value: 23.824609},
{Time: 15, Value: 29.311683},
{Time: 16, Value: 31.770309},
{Time: 17, Value: 35.177877},
{Time: 19, Value: 29.60175},
{Time: 20, Value: 34.538842},
{Time: 21, Value: 41.273599},
{Time: 22, Value: 26.655862},
{Time: 23, Value: 28.279859},
{Time: 24, Value: 35.191153},
{Time: 25, Value: 41.727458},
{Time: 26, Value: 24.04185},
{Time: 27, Value: 32.328103},
{Time: 28, Value: 37.328708},
{Time: 30, Value: 29.346326},
{Time: 31, Value: 36.48291},
{Time: 32, Value: 42.977719},
{Time: 34, Value: 31.180221},
{Time: 35, Value: 37.717881},
{Time: 36, Value: 40.420211},
{Time: 37, Value: 51.206863},
{Time: 38, Value: 31.887228},
{Time: 41, Value: 55.558567},
{Time: 42, Value: 33.850915},
{Time: 43, Value: 42.076383},
{Time: 44, Value: 45.642292},
{Time: 45, Value: 59.76678},
{Time: 46, Value: 35.191877},
{Time: 47, Value: 44.319737},
{Time: 48, Value: 47.913736},
}
for _, p := range austourists {
hw.AggregateFloat(&p)
}
points := hw.Emit()
forecasted := []influxql.FloatPoint{
{Time: 49, Value: 54.39825435294697},
{Time: 50, Value: 41.93726334513928},
{Time: 51, Value: 54.909838091213345},
{Time: 52, Value: 57.1641355392107},
{Time: 53, Value: 57.164128921488114},
{Time: 54, Value: 44.06955989656805},
{Time: 55, Value: 57.701724090970124},
{Time: 56, Value: 60.07064109901599},
{Time: 57, Value: 60.0706341448159},
{Time: 58, Value: 46.310272882941966},
}
if exp, got := len(forecasted), len(points); exp != got {
t.Fatalf("unexpected number of points emitted: got %d exp %d", got, exp)
}
for i := range forecasted {
if exp, got := forecasted[i].Time, points[i].Time; got != exp {
t.Errorf("unexpected time on points[%d] got %v exp %v", i, got, exp)
}
if exp, got := forecasted[i].Value, points[i].Value; !almostEqual(got, exp) {
t.Errorf("unexpected value on points[%d] got %v exp %v", i, got, exp)
}
}
}