go-chart/bollinger_band_series_test.go
2016-07-18 15:49:34 -07:00

52 lines
907 B
Go

package chart
import (
"math"
"testing"
"github.com/blendlabs/go-assert"
)
func TestBollingerBandSeries(t *testing.T) {
assert := assert.New(t)
s1 := mockValueProvider{
X: Seq(1.0, 100.0),
Y: SeqRand(100, 1024),
}
bbs := &BollingerBandsSeries{
InnerSeries: s1,
}
xvalues := make([]float64, 100)
y1values := make([]float64, 100)
y2values := make([]float64, 100)
for x := 0; x < 100; x++ {
xvalues[x], y1values[x], y2values[x] = bbs.GetBoundedValue(x)
}
for x := bbs.GetPeriod(); x < 100; x++ {
assert.True(y1values[x] > y2values[x])
}
}
func TestBollingerBandLastValue(t *testing.T) {
assert := assert.New(t)
s1 := mockValueProvider{
X: Seq(1.0, 100.0),
Y: Seq(1.0, 100.0),
}
bbs := &BollingerBandsSeries{
InnerSeries: s1,
}
x, y1, y2 := bbs.GetBoundedLastValue()
assert.Equal(100.0, x)
assert.Equal(101, math.Floor(y1))
assert.Equal(83, math.Floor(y2))
}