theme v1

internal/theme/theme_test.go

@@ -0,0 +1,104 @@
+package theme
+
+import (
+	"io/fs"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/tamakyi/TamaBox/static"
+)
+
+// 主题必须自带的一套颜色令牌（形状/字体/阴影允许继承基础层）。
+var requiredTokens = []string{
+	"--tb-bg", "--tb-surface", "--tb-surface-2", "--tb-surface-hover", "--tb-border",
+	"--tb-text", "--tb-text-secondary", "--tb-text-muted",
+	"--tb-primary", "--tb-primary-weak",
+}
+
+func TestBuildAvailable(t *testing.T) {
+	list, def, _ := build("sakura", "default, sakura ,bad_Slug,missing")
+
+	assert.Equal(t, "sakura", def, "站点默认应取配置值")
+	var slugs []string
+	for _, item := range list {
+		slugs = append(slugs, item.Slug)
+	}
+	// bad_Slug 非法、missing 没有 css 文件，都应被忽略
+	assert.Equal(t, []string{"default", "sakura"}, slugs)
+}
+
+func TestBuildInvalidDefault(t *testing.T) {
+	_, def, _ := build("does-not-exist", "sakura")
+	assert.Equal(t, "", def, "默认主题不可用时回退基础外观")
+
+	_, def, _ = build("default", "default,sakura")
+	assert.Equal(t, "", def, "default 语义即基础外观，不应产生 css 请求")
+}
+
+func TestResolve(t *testing.T) {
+	// 站点默认是 sakura
+	themes, siteDef, index := build("sakura", "default,sakura")
+	require.Equal(t, "sakura", siteDef)
+	require.Contains(t, index, "sakura")
+	require.NotEmpty(t, themes)
+
+	assert.Equal(t, "sakura", resolve("", siteDef, index), "未选择时跟随站点默认")
+	assert.Equal(t, "sakura", resolve("SAKURA", siteDef, index), "大小写不敏感")
+	assert.Equal(t, "", resolve("default", siteDef, index), "显式选 default = 基础外观，不回退站点默认")
+	assert.Equal(t, "sakura", resolve("nope", siteDef, index), "非法值回退站点默认")
+
+	// 站点默认是基础外观
+	_, def2, index2 := build("default", "default,sakura")
+	assert.Equal(t, "", resolve("", def2, index2))
+	assert.Equal(t, "sakura", resolve("sakura", def2, index2))
+}
+
+// TestThemeCSSComplete 防止「复制底稿只写了浅色块」这类问题：
+// 半套主题不会报错，只会让深色模式变成浅色配色。
+func TestThemeCSSComplete(t *testing.T) {
+	entries, err := fs.ReadDir(static.FS, strings.TrimSuffix(themeCSSDir, "/"))
+	require.NoError(t, err)
+	require.NotEmpty(t, entries)
+
+	for _, e := range entries {
+		name := e.Name()
+		if !strings.HasSuffix(name, ".css") {
+			continue
+		}
+		slug := strings.TrimSuffix(name, ".css")
+		// _scaffold.css 是给人复制的模板，default.css 永不加载（仅提供色块预览）
+		if strings.HasPrefix(slug, "_") || slug == DefaultSlug {
+			continue
+		}
+
+		raw, err := static.FS.ReadFile(themeCSSDir + name)
+		require.NoError(t, err)
+		css := string(raw)
+
+		light := ruleBody(css, `html[data-theme-style="`+slug+`"]`)
+		require.NotEmpty(t, light, "%s：缺少浅色块 html[data-theme-style=\"%s\"]", name, slug)
+
+		dark := ruleBody(css, `html[data-theme="dark"][data-theme-style="`+slug+`"]`)
+		require.NotEmpty(t, dark, "%s：缺少深色块 html[data-theme=\"dark\"][data-theme-style=\"%s\"]", name, slug)
+
+		for _, tok := range requiredTokens {
+			assert.NotEmpty(t, tokenValue(light, tok), "%s 浅色块缺少 %s", name, tok)
+			assert.NotEmpty(t, tokenValue(dark, tok), "%s 深色块缺少 %s", name, tok)
+		}
+	}
+}
+
+func TestSwatch(t *testing.T) {
+	raw, err := static.FS.ReadFile(themeCSSDir + "sakura.css")
+	require.NoError(t, err)
+	sw := swatchOf(string(raw), "sakura")
+	assert.True(t, strings.HasPrefix(sw, "linear-gradient("), "swatch 应为渐变串，实际 %q", sw)
+	assert.Contains(t, sw, "#e5678f")
+
+	assert.Equal(t, "", swatchOf("/* 空文件 */", "sakura"), "取不到颜色时返回空串")
+	assert.Equal(t, "", swatchOf(`html[data-theme-style="x"] { --tb-bg: url(evil); --tb-primary: #fff; }`, "x"),
+		"非色值内容不得进入 swatch")
+}