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

layout/divider_test.go

@@ -0,0 +1,123 @@
+package layout
+
+import (
+	"image/color"
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+
+	"github.com/ZacharyZhang-NY/MujicaUI/core"
+	"github.com/ZacharyZhang-NY/MujicaUI/input"
+)
+
+func TestDividerSizes(t *testing.T) {
+	var h, v ui.Rect
+	ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{})
+		ui.Column(c).Width(300).Children(func() {
+			h = Divider(c, DividerOptions{}).Bounds()
+			ui.Row(c).Height(80).Children(func() {
+				v = Divider(c, DividerOptions{Vertical: true}).Bounds()
+			})
+		})
+	}, 400, 300).Frame()
+	if h.W != 300 || h.H != 1 {
+		t.Fatalf("horizontal %vx%v, want 300x1", h.W, h.H)
+	}
+	if v.W != 1 || v.H != 80 {
+		t.Fatalf("vertical %vx%v, want 1x80", v.W, v.H)
+	}
+}
+
+func TestDividerNeverFocused(t *testing.T) {
+	tt := ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{})
+		ui.Column(c).Children(func() {
+			Divider(c, DividerOptions{Label: "Section", Ornament: true})
+			Divider(c, DividerOptions{Ornament: true})
+			input.Button(c, "OK", input.ButtonOptions{})
+		})
+	}, 400, 300)
+	tt.Key(0, ui.KeyTab)
+	if !tt.Focused("OK") {
+		t.Fatal("first Tab did not skip the dividers to the button")
+	}
+	if tt.Focused("Section") {
+		t.Fatal("divider label took the focus")
+	}
+}
+
+func TestDividerLabelCentered(t *testing.T) {
+	tt := ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{})
+		ui.Column(c).Width(400).Children(func() {
+			Divider(c, DividerOptions{Label: "Chapter II"})
+		})
+	}, 400, 100)
+	r, ok := tt.Find("Chapter II")
+	if !ok {
+		t.Fatal("label missing")
+	}
+	if mid := r.X + r.W/2; mid < 199 || mid > 201 {
+		t.Fatalf("label centered at %v, want 200", mid)
+	}
+}
+
+func TestDividerOrnamentColor(t *testing.T) {
+	var want ui.Color
+	tt := ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{Mode: core.Light})
+		want = core.Tokens(c).Ornament
+		ui.Column(c).Width(201).Padding(10, 0).Children(func() {
+			Divider(c, DividerOptions{Ornament: true})
+		})
+	}, 201, 40)
+	// The diamond's center sits on the line's middle.
+	got := tt.Image().At(100, 13)
+	if got != (color.RGBA{want.R, want.G, want.B, 255}) {
+		t.Fatalf("diamond center %v, want ornament %v", got, want)
+	}
+}
+
+func TestDividerVerticalLabelPanics(t *testing.T) {
+	defer func() {
+		if recover() == nil {
+			t.Fatal("vertical label did not panic")
+		}
+	}()
+	ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{})
+		Divider(c, DividerOptions{Vertical: true, Label: "x"})
+	}, 100, 100)
+}
+
+func TestDividerSnapshot(t *testing.T) {
+	snapshot(t, "divider", 420, 170, func(c *ui.Context) {
+		ui.Column(c).Padding(20).Gap(20).Children(func() {
+			Divider(c, DividerOptions{})
+			Divider(c, DividerOptions{Ornament: true})
+			Divider(c, DividerOptions{Label: "Chapter II"})
+			Divider(c, DividerOptions{Label: "第二章", Ornament: true})
+			ui.Row(c).Height(28).Gap(12).Children(func() {
+				ui.Text(c, "Left")
+				Divider(c, DividerOptions{Vertical: true})
+				ui.Text(c, "Middle")
+				Divider(c, DividerOptions{Vertical: true, Ornament: true})
+				ui.Text(c, "Right")
+			})
+		})
+	})
+}
+
+func TestDividerLabelTextScale(t *testing.T) {
+	tt := ui.NewTester(func(c *ui.Context) {
+		core.Use(c, core.Settings{})
+		ui.Column(c).Width(300).Children(func() { Divider(c, DividerOptions{Label: "Chapter II"}) })
+	}, 400, 200)
+	plain, _ := tt.Find("Chapter II")
+	tt.SetPreferences(ui.Preferences{TextScale: 2})
+	tt.Frame()
+	if big, _ := tt.Find("Chapter II"); big.H < 1.8*plain.H {
+		t.Fatalf("label height %v at 200%%, was %v", big.H, plain.H)
+	}
+}