Charts I: components 101-120

sparkline_test.go

@@ -0,0 +1,78 @@
+package mujica
+
+import (
+	"math"
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+)
+
+var sparkValues = []float64{3, 5, 4, math.NaN(), 7, 6, 9}
+
+func TestSparklineEndValueAndKeys(t *testing.T) {
+	kind := SparklineLine
+	h := &chartHarness{build: func(c *ui.Context) ChartResult {
+		return Sparkline(c, sparkValues, SparklineOptions{Frame: ChartFrame{Label: "Bells"}, Kind: kind})
+	}}
+	tt := ui.NewTester(h.view, 300, 200)
+	if got := chartReadout(tt); got != "9" {
+		t.Fatalf("end value %q", got)
+	}
+	r, _ := tt.Find("Bells")
+	if r.H < 28 || r.W != 96 {
+		t.Fatalf("sparkline box %v", r)
+	}
+	tabTo(t, tt, "Bells")
+	tt.Key(0, ui.KeyRight)
+	tt.Key(0, ui.KeyRight)
+	if got := chartReadout(tt); got != "5" || h.res.Point != 1 {
+		t.Fatalf("read %q at %d", got, h.res.Point)
+	}
+	tt.Key(0, ui.KeyRight)
+	tt.Key(0, ui.KeyRight)
+	if got := chartReadout(tt); got != "no value" {
+		t.Fatalf("missing %q", got)
+	}
+	for _, kind = range []SparklineKind{SparklineBar, SparklineArea} {
+		tt.Frame()
+		tt.Move(r.X+r.W-2, r.Y+r.H/2)
+		if got := chartReadout(tt); got != "9" || h.res.Point != 6 {
+			t.Fatalf("kind %d hover %q", kind, got)
+		}
+	}
+}
+
+func TestSparklineStates(t *testing.T) {
+	status := DataLoading
+	var vals []float64
+	h := &chartHarness{build: func(c *ui.Context) ChartResult {
+		return Sparkline(c, vals, SparklineOptions{Frame: ChartFrame{Label: "Bells", Status: status}})
+	}}
+	tt := ui.NewTester(h.view, 300, 200)
+	status = DataFailed
+	tt.Frame()
+	if err := tt.Click("Retry"); err != nil {
+		t.Fatal(err)
+	}
+	status = DataReady
+	tt.Frame()
+	if !tt.HasText("No data") {
+		t.Fatalf("empty %q", tt.Texts())
+	}
+	defer func() {
+		if recover() == nil {
+			t.Fatal("no panic without a label")
+		}
+	}()
+	ui.NewTester(func(c *ui.Context) { Use(c, Settings{}); Sparkline(c, vals, SparklineOptions{}) }, 100, 100)
+}
+
+func TestSparklineSnapshot(t *testing.T) {
+	snapshot(t, "sparkline", 420, 80, func(c *ui.Context) {
+		ui.Row(c).Padding(16).Gap(24).Children(func() {
+			for _, k := range []SparklineKind{SparklineLine, SparklineBar, SparklineArea} {
+				Sparkline(c, sparkValues, SparklineOptions{Frame: ChartFrame{Label: "Bells"}, Kind: k})
+			}
+		})
+	})
+}