Charts I: components 101-120

gauge_test.go

@@ -0,0 +1,75 @@
+package mujica
+
+import (
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+)
+
+var gaugeSegments = []GaugeSegment{{60, "Calm", GaugeGood}, {85, "Busy", GaugeWarning}, {100, "Crowded", GaugeDanger}}
+
+func TestGaugeReadoutNamesSegment(t *testing.T) {
+	full := false
+	h := &chartHarness{build: func(c *ui.Context) ChartResult {
+		return Gauge(c, 72, GaugeOptions{Frame: ChartFrame{Label: "Nave"}, Max: 100, Unit: "%", Segments: gaugeSegments, Full: full})
+	}}
+	tt := ui.NewTester(h.view, 520, 420)
+	tabTo(t, tt, "Nave")
+	tt.Key(0, ui.KeyRight)
+	if got := chartReadout(tt); got != "72 % · Busy" {
+		t.Fatalf("value %q", got)
+	}
+	tt.Key(0, ui.KeyEnd)
+	if got := chartReadout(tt); got != "Crowded: 85–100" {
+		t.Fatalf("last segment %q", got)
+	}
+	tt.Key(0, ui.KeyEscape)
+	for _, full = range []bool{false, true} {
+		tt.Frame()
+		b := h.res.Element.Bounds()
+		cx := b.X + b.W/2
+		var cy, rad float32
+		if full {
+			rad = 200/2 - 12
+			cy = b.Y + 100
+		} else {
+			rad = min(b.W/2-12, 200-36)
+			cy = b.Y + 8 + rad
+		}
+		tt.Move(cx-rad*0.7, cy-rad*0.6) // the left of the dial: the first segment
+		if got := chartReadout(tt); got != "Calm: 0–60" {
+			t.Fatalf("full=%v hover %q", full, got)
+		}
+	}
+}
+
+func TestGaugeBad(t *testing.T) {
+	for name, o := range map[string]GaugeOptions{
+		"range":    {Max: 0},
+		"segments": {Max: 100, Segments: []GaugeSegment{{50, "a", 0}, {40, "b", 0}}},
+		"end":      {Max: 100, Segments: []GaugeSegment{{50, "a", 0}}},
+	} {
+		func() {
+			defer func() {
+				if recover() == nil {
+					t.Errorf("%s: no panic", name)
+				}
+			}()
+			o.Frame.Label = "x"
+			ui.NewTester(func(c *ui.Context) { Use(c, Settings{}); Gauge(c, 0, o) }, 300, 300)
+		}()
+	}
+}
+
+func TestGaugeSnapshot(t *testing.T) {
+	snapshot(t, "gauge", 560, 300, func(c *ui.Context) {
+		ui.Row(c).Padding(16).Gap(16).Children(func() {
+			ui.Column(c).Width(256).Children(func() {
+				Gauge(c, 72, GaugeOptions{Frame: ChartFrame{Label: "Half"}, Max: 100, Unit: "%", Segments: gaugeSegments})
+			})
+			ui.Column(c).Width(256).Children(func() {
+				Gauge(c, 30, GaugeOptions{Frame: ChartFrame{Label: "Full"}, Max: 100, Unit: "%", Segments: gaugeSegments, Full: true})
+			})
+		})
+	})
+}