Theme: 1.5 line height, reject invalid settings

theme_test.go

@@ -0,0 +1,43 @@
+package mujica
+
+import (
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+
+	"mujicaui/theme"
+)
+
+func TestUseLineHeight(t *testing.T) {
+	var h float32
+	tt := ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		h = ui.Text(c, "one\ntwo").Bounds().H
+	}, 300, 200)
+	tt.Frame()
+	if want := 2 * theme.BodySize * theme.LineHeight; h < want-0.5 || h > want+0.5 {
+		t.Fatalf("two lines are %v DIPs, want %v", h, want)
+	}
+}
+
+func TestUseRejectsInvalidSettings(t *testing.T) {
+	for _, s := range []Settings{{Mode: 9}, {Density: 9}, {Locale: "fr-FR"}} {
+		func() {
+			defer func() {
+				if recover() == nil {
+					t.Errorf("%+v accepted", s)
+				}
+			}()
+			ui.NewTester(func(c *ui.Context) { Use(c, s) }, 100, 100)
+		}()
+	}
+}
+
+func TestTokensWithoutUsePanics(t *testing.T) {
+	defer func() {
+		if recover() == nil {
+			t.Fatal("Tokens before Use did not panic")
+		}
+	}()
+	ui.NewTester(func(c *ui.Context) { Tokens(c) }, 100, 100)
+}