0c3bccfceb
- Service with embedded locale files (en, de) - Auto-detect system language from LANG/LC_* env vars - Template support for interpolation and pluralization - Extensible: GUI can load additional translations via LoadFS() - Global default service with T() shorthand - Thread-safe with sync.RWMutex Designed to be extended by core-gui which can import this package and add GUI-specific translations on top. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
137 lines
2.8 KiB
Go
137 lines
2.8 KiB
Go
package i18n
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import (
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"sync"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestNew(t *testing.T) {
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svc, err := New()
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require.NoError(t, err)
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require.NotNil(t, svc)
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// Should have English available
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langs := svc.AvailableLanguages()
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assert.Contains(t, langs, "en")
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}
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func TestTranslate(t *testing.T) {
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svc, err := New()
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require.NoError(t, err)
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// Basic translation
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result := svc.T("cli.success")
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assert.Equal(t, "Success", result)
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// Missing key returns the key
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result = svc.T("nonexistent.key")
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assert.Equal(t, "nonexistent.key", result)
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}
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func TestTranslateWithArgs(t *testing.T) {
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svc, err := New()
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require.NoError(t, err)
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// Translation with template data
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result := svc.T("error.not_found", map[string]string{"Item": "config.yaml"})
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assert.Equal(t, "Not found: config.yaml", result)
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result = svc.T("cli.time.minutes_ago", map[string]int{"Count": 5})
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assert.Equal(t, "5 minutes ago", result)
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}
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func TestSetLanguage(t *testing.T) {
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svc, err := New()
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require.NoError(t, err)
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// Default is English
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assert.Equal(t, "en", svc.Language())
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// Setting invalid language should error
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err = svc.SetLanguage("xx-invalid")
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assert.Error(t, err)
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// Language should still be English
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assert.Equal(t, "en", svc.Language())
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}
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func TestDefaultService(t *testing.T) {
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// Reset default for test
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defaultService = nil
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defaultOnce = sync.Once{}
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defaultErr = nil
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err := Init()
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require.NoError(t, err)
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svc := Default()
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require.NotNil(t, svc)
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// Global T function should work
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result := T("cli.success")
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assert.Equal(t, "Success", result)
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}
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func TestAddMessages(t *testing.T) {
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svc, err := New()
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require.NoError(t, err)
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// Add custom messages
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err = svc.AddMessages("en", map[string]string{
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"custom.greeting": "Hello, {{.Name}}!",
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})
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require.NoError(t, err)
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result := svc.T("custom.greeting", map[string]string{"Name": "World"})
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assert.Equal(t, "Hello, World!", result)
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}
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func TestAvailableLanguages(t *testing.T) {
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svc, err := New()
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require.NoError(t, err)
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langs := svc.AvailableLanguages()
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assert.NotEmpty(t, langs)
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assert.Contains(t, langs, "en")
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}
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func TestDetectLanguage(t *testing.T) {
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tests := []struct {
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name string
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langEnv string
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expected string
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}{
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{
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name: "English exact",
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langEnv: "en",
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expected: "en",
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},
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{
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name: "English with region and encoding",
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langEnv: "en_GB.UTF-8",
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expected: "en",
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},
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{
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name: "Empty LANG",
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langEnv: "",
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expected: "",
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},
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}
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svc, err := New()
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require.NoError(t, err)
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Setenv("LANG", tt.langEnv)
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t.Setenv("LC_ALL", "")
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t.Setenv("LC_MESSAGES", "")
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result, _ := detectLanguage(svc.availableLangs)
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assert.Equal(t, tt.expected, result)
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})
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}
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}
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