refactor: change project structure and package name

pkg/chart/bollinger_band_series_test.go

@@ -0,0 +1,52 @@
+package chart
+
+import (
+	"fmt"
+	"math"
+	"testing"
+
+	"github.com/d-Rickyy-b/go-chart-x/v2/testutil"
+)
+
+func TestBollingerBandSeries(t *testing.T) {
+	// replaced new assertions helper
+
+	s1 := mockValuesProvider{
+		X: LinearRange(1.0, 100.0),
+		Y: RandomValuesWithMax(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.GetBoundedValues(x)
+	}
+
+	for x := bbs.GetPeriod(); x < 100; x++ {
+		testutil.AssertTrue(t, y1values[x] > y2values[x], fmt.Sprintf("%v vs. %v", y1values[x], y2values[x]))
+	}
+}
+
+func TestBollingerBandLastValue(t *testing.T) {
+	// replaced new assertions helper
+
+	s1 := mockValuesProvider{
+		X: LinearRange(1.0, 100.0),
+		Y: LinearRange(1.0, 100.0),
+	}
+
+	bbs := &BollingerBandsSeries{
+		InnerSeries: s1,
+	}
+
+	x, y1, y2 := bbs.GetBoundedLastValues()
+	testutil.AssertEqual(t, 100.0, x)
+	testutil.AssertEqual(t, 101, math.Floor(y1))
+	testutil.AssertEqual(t, 83, math.Floor(y2))
+}