initial commit.

chart_test.go

@@ -0,0 +1,30 @@
+package chart
+
+import (
+	"bytes"
+	"testing"
+	"time"
+
+	"github.com/blendlabs/go-assert"
+)
+
+func TestChartSingleSeries(t *testing.T) {
+	assert := assert.New(t)
+	now := time.Now()
+	c := Chart{
+		Title:  "Hello!",
+		Width:  1024,
+		Height: 400,
+		Series: []Series{
+			TimeSeries{
+				Name:    "Goog",
+				XValues: []time.Time{now.AddDate(0, 0, -3), now.AddDate(0, 0, -2), now.AddDate(0, 0, -1)},
+				YValues: []float64{1.0, 2.0, 3.0},
+			},
+		},
+	}
+
+	buffer := bytes.NewBuffer([]byte{})
+	c.Render(PNG, buffer)
+	assert.NotEmpty(buffer.Bytes())
+}