Split into category packages; module github.com/ZacharyZhang-NY/MujicaUI

chart/chart_tooltip_test.go

@@ -0,0 +1,104 @@
+package chart
+
+import (
+	"image/color"
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+
+	"github.com/ZacharyZhang-NY/MujicaUI/core"
+	"github.com/ZacharyZhang-NY/MujicaUI/internal"
+	"github.com/ZacharyZhang-NY/MujicaUI/theme"
+)
+
+func TestChartTooltipFlipsAtEdges(t *testing.T) {
+	var at [2]float32
+	var tip ui.Rect
+	tt := ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{Mode: core.Light})
+		tip = ChartTooltip(c, at[0], at[1], []ChartTooltipLine{{Text: "Lauds"}, {Text: "Pews 5", Color: theme.Light().Info, Shape: 1}}).Bounds()
+	}, 400, 300)
+	at = [2]float32{50, 50}
+	tt.Frame()
+	tt.Frame()
+	if tip.X != 62 || tip.Y != 62 || tip.W < 40 {
+		t.Fatalf("tooltip at %v", tip)
+	}
+	at = [2]float32{395, 295}
+	tt.Frame()
+	tt.Frame()
+	if tip.X+tip.W > 395-12+0.5 || tip.Y+tip.H > 295-12+0.5 {
+		t.Fatalf("tooltip did not flip: %v", tip)
+	}
+	defer func() {
+		if recover() == nil {
+			t.Fatal("no panic without lines")
+		}
+	}()
+	ui.NewTester(func(c *ui.Context) { core.Use(c, core.Settings{}); ChartTooltip(c, 0, 0, nil) }, 100, 100)
+}
+
+func TestChartTooltipFollowsFocusAndPointer(t *testing.T) {
+	h := &chartHarness{build: func(c *ui.Context) ChartResult {
+		return LineChart(c, lineSeries(), LineChartOptions{Frame: ChartFrame{Label: "Chapel"}})
+	}}
+	tt := ui.NewTester(h.view, 520, 420)
+	tt.SetPreferences(ui.Preferences{ReduceMotion: true, TextScale: 1})
+	tabTo(t, tt, "Chapel")
+	tt.Key(0, ui.KeyEnd)
+	if !tooltipShown(tt) {
+		t.Fatal("no tooltip for the keyboard point")
+	}
+	tt.Key(0, ui.KeyEscape)
+	if tooltipShown(tt) {
+		t.Fatal("tooltip stayed after Escape")
+	}
+	b := h.res.Element.Bounds()
+	tt.Move(b.X+b.W/2, b.Y+b.H/2)
+	if !tooltipShown(tt) {
+		t.Fatal("no tooltip under the pointer")
+	}
+}
+
+// tooltipShown finds Surface runs longer than marker rings.
+func tooltipShown(tt *ui.Tester) bool {
+	img := tt.Image()
+	want := toRGBA(theme.Light().Surface)
+	r := img.Bounds()
+	for y := r.Min.Y; y < r.Max.Y; y += 2 {
+		run := 0
+		for x := r.Min.X; x < r.Max.X; x++ {
+			if color.RGBAModel.Convert(img.At(x, y)).(color.RGBA) == want {
+				if run++; run >= 30 {
+					return true
+				}
+			} else {
+				run = 0
+			}
+		}
+	}
+	return false
+}
+
+func TestChartTooltipSnapshot(t *testing.T) {
+	snapshot(t, "chart_tooltip", 320, 140, func(c *ui.Context) {
+		pal := internal.Palette(core.Tokens(c))
+		ChartTooltip(c, 20, 20, []ChartTooltipLine{{Text: "Lauds"}, {Text: "Pews 5", Color: pal[0]}, {Text: "Candles 2", Color: pal[1], Shape: 1}})
+	})
+}
+
+func TestChartTooltipFitsLongContent(t *testing.T) {
+	var b ui.Rect
+	tt := ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{})
+		lines := make([]ChartTooltipLine, 40)
+		for i := range lines {
+			lines[i].Text = "A very long series name that wraps across the tooltip panel"
+		}
+		b = ChartTooltip(c, 159, 99, lines).Bounds()
+	}, 160, 100)
+	tt.Frame()
+	if b.X < 4 || b.Y < 4 || b.X+b.W > 156 || b.Y+b.H > 96 {
+		t.Fatalf("tooltip outside window: %v", b)
+	}
+}