Charts I: components 101-120

funnel_chart_test.go

@@ -0,0 +1,54 @@
+package mujica
+
+import (
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+)
+
+var funnelStages = []ChartSlice{{"Visitors", 1000}, {"Novices", 400}, {"Vows", 100}, {"Abbots", 0}}
+
+func TestFunnelChartReadout(t *testing.T) {
+	h := &chartHarness{build: func(c *ui.Context) ChartResult {
+		return FunnelChart(c, funnelStages, FunnelChartOptions{Frame: ChartFrame{Label: "Order"}})
+	}}
+	tt := ui.NewTester(h.view, 520, 420)
+	tabTo(t, tt, "Order")
+	tt.Key(0, ui.KeyRight)
+	tt.Key(0, ui.KeyRight)
+	if got := chartReadout(tt); got != "Novices · 400 · 40.0% of the stage before · 40.0% of the first" {
+		t.Fatalf("readout %q", got)
+	}
+	tt.Key(0, ui.KeyEscape)
+	b := h.res.Element.Bounds()
+	tt.Move(b.X+b.W/3, b.Y+4+232*0.6) // third stage band
+	if got := chartReadout(tt); got != "Vows · 100 · 25.0% of the stage before · 10.0% of the first" {
+		t.Fatalf("hover %q", got)
+	}
+}
+
+func TestFunnelChartBadAndEmpty(t *testing.T) {
+	h := &chartHarness{build: func(c *ui.Context) ChartResult {
+		return FunnelChart(c, []ChartSlice{{"a", 0}}, FunnelChartOptions{Frame: ChartFrame{Label: "Order"}})
+	}}
+	if tt := ui.NewTester(h.view, 520, 420); !tt.HasText("No data") {
+		t.Fatal("all-zero funnel is not empty")
+	}
+	defer func() {
+		if recover() == nil {
+			t.Fatal("no panic for a negative stage")
+		}
+	}()
+	ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		FunnelChart(c, []ChartSlice{{"a", -1}}, FunnelChartOptions{Frame: ChartFrame{Label: "x"}})
+	}, 300, 300)
+}
+
+func TestFunnelChartSnapshot(t *testing.T) {
+	snapshot(t, "funnel_chart", 520, 300, func(c *ui.Context) {
+		ui.Column(c).Padding(16).Children(func() {
+			FunnelChart(c, funnelStages[:3], FunnelChartOptions{Frame: ChartFrame{Label: "Order", Height: 220}})
+		})
+	})
+}