WIP components (as built)

shimmer_text_test.go

@@ -0,0 +1,76 @@
+package mujica
+
+import (
+	"bytes"
+	"testing"
+	"time"
+
+	"github.com/egoist/mygo/ui"
+)
+
+func TestShimmerTextSweepsAndStops(t *testing.T) {
+	active := true
+	tt, n := motionFrames(func(c *ui.Context) {
+		ShimmerText(c, "Thinking", ShimmerTextOptions{Active: active})
+	}, 200, 60)
+	if _, ok := tt.Find("Thinking"); !ok {
+		t.Fatal("text not named")
+	}
+	a := encode(t, tt.Image())
+	time.Sleep(200 * time.Millisecond)
+	tt.Frame()
+	if bytes.Equal(a, encode(t, tt.Image())) || !motionBusy(tt, n) {
+		t.Fatal("no sweep")
+	}
+	active = false
+	tt.Frame()
+	if motionBusy(tt, n) || !tt.HasText("Thinking") {
+		t.Fatal("inactive text still sweeps")
+	}
+	active = true
+	tt.SetPreferences(ui.Preferences{ReduceMotion: true, TextScale: 1})
+	if motionBusy(tt, n) {
+		t.Fatal("sweeps under reduced motion")
+	}
+	defer func() {
+		if recover() == nil {
+			t.Fatal("empty text did not panic")
+		}
+	}()
+	ui.Render(func(c *ui.Context) {
+		Use(c, Settings{})
+		ShimmerText(c, "", ShimmerTextOptions{})
+	}, 100, 50, 1)
+}
+
+func TestShimmerTextSnapshot(t *testing.T) {
+	snapshot(t, "shimmer_text", 300, 80, func(c *ui.Context) {
+		ui.Column(c).Padding(16).Gap(8).Children(func() {
+			ShimmerText(c, "Thinking…", ShimmerTextOptions{Active: true})
+			ShimmerText(c, "思考中…", ShimmerTextOptions{})
+		})
+	})
+}
+
+func TestShimmerTextConstrainedWidth(t *testing.T) {
+	var background ui.Color
+	tt := ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		background = Tokens(c).Background
+		ui.Column(c).Padding(10).Children(func() {
+			ShimmerText(c, "Thinking about the complete program and planning the next steps", ShimmerTextOptions{Active: true}).Width(80)
+		})
+	}, 500, 100)
+	for _, reduce := range []bool{false, true} {
+		tt.SetPreferences(ui.Preferences{ReduceMotion: reduce, TextScale: 1})
+		img := tt.Image()
+		for y := 0; y < img.Bounds().Dy(); y++ {
+			for x := 92; x < img.Bounds().Dx(); x++ {
+				pixel := img.RGBAAt(x, y)
+				if pixel.R != background.R || pixel.G != background.G || pixel.B != background.B {
+					t.Fatalf("text escaped 80 DIP width at %d,%d", x, y)
+				}
+			}
+		}
+	}
+}