1 files changed, 115 insertions, 0 deletions
diff --git a/tpl/template_i18n_test.go b/tpl/template_i18n_test.go
new file mode 100644
index 000000000..2940c8d4d
--- /dev/null
+++ b/tpl/template_i18n_test.go
@@ -0,0 +1,115 @@
+// Copyright 2015 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tpl
+
+import (
+	"testing"
+
+	"github.com/nicksnyder/go-i18n/i18n/bundle"
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/assert"
+)
+
+type test struct {
+	file    string
+	content []byte
+}
+
+func doTestI18nTranslate(t *testing.T, data []test, lang, id string) string {
+	i18nBundle := bundle.New()
+
+	for _, r := range data {
+		err := i18nBundle.ParseTranslationFileBytes(r.file, r.content)
+		if err != nil {
+			t.Errorf("Error parsing translation file: %s", err)
+		}
+		SetI18nTfuncs(i18nBundle)
+	}
+
+	SetTranslateLang(lang)
+
+	translated, err := I18nTranslate(id, nil)
+	if err != nil {
+		t.Errorf("Error translating '%s': %s", id, err)
+	}
+	return translated
+}
+
+func TestI18nTranslate(t *testing.T) {
+	var data []test
+	var actual, expected string
+
+	viper.SetDefault("DefaultContentLanguage", "en")
+
+	// Test without and with placeholders
+	for _, enablePlaceholders := range []bool{false, true} {
+		viper.Set("EnableMissingTranslationPlaceholders", enablePlaceholders)
+
+		// All translations present
+		data = []test{
+			{"en.yaml", []byte("- id: \"hello\"\n  translation: \"Hello, World!\"")},
+			{"es.yaml", []byte("- id: \"hello\"\n  translation: \"¡Hola, Mundo!\"")},
+		}
+		expected = "¡Hola, Mundo!"
+		actual = doTestI18nTranslate(t, data, "es", "hello")
+		assert.Equal(t, expected, actual)
+
+		// Translation missing in current language but present in default
+		data = []test{
+			{"en.yaml", []byte("- id: \"hello\"\n  translation: \"Hello, World!\"")},
+			{"es.yaml", []byte("- id: \"goodbye\"\n  translation: \"¡Adiós, Mundo!\"")},
+		}
+		if enablePlaceholders {
+			expected = "[i18n] hello"
+		} else {
+			expected = "Hello, World!"
+		}
+		actual = doTestI18nTranslate(t, data, "es", "hello")
+		assert.Equal(t, expected, actual)
+
+		// Translation missing in default language but present in current
+		data = []test{
+			{"en.yaml", []byte("- id: \"goodbye\"\n  translation: \"Goodbye, World!\"")},
+			{"es.yaml", []byte("- id: \"hello\"\n  translation: \"¡Hola, Mundo!\"")},
+		}
+		expected = "¡Hola, Mundo!"
+		actual = doTestI18nTranslate(t, data, "es", "hello")
+		assert.Equal(t, expected, actual)
+
+		// Translation missing in both default and current language
+		data = []test{
+			{"en.yaml", []byte("- id: \"goodbye\"\n  translation: \"Goodbye, World!\"")},
+			{"es.yaml", []byte("- id: \"goodbye\"\n  translation: \"¡Adiós, Mundo!\"")},
+		}
+		if enablePlaceholders {
+			expected = "[i18n] hello"
+		} else {
+			expected = ""
+		}
+		actual = doTestI18nTranslate(t, data, "es", "hello")
+		assert.Equal(t, expected, actual)
+
+		// Default translation file missing or empty
+		data = []test{
+			{"en.yaml", []byte("")},
+		}
+		actual = doTestI18nTranslate(t, data, "es", "hello")
+		if enablePlaceholders {
+			expected = "[i18n] hello"
+		} else {
+			expected = ""
+		}
+		assert.Equal(t, expected, actual)
+	}
+}