tests.

bollinger_band_series_test.go

@@ -0,0 +1,32 @@
+package chart
+
+import (
+	"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.GetWindowSize(); x < 100; x++ {
+		assert.True(y1values[x] > y2values[x])
+	}
+}