Tests index and translator

test/index.js

@@ -0,0 +1,4 @@
+require('babel/register')({
+  stage: 0
+});
+require('./translate.spec.js');

test/translator.spec.js

@@ -0,0 +1,41 @@
+var test = require('tape');
+var Core = require('../src/core/index.js');
+
+test('russian translation', function (t) {
+  const russian = require('../src/locale/ru.js');
+  const core = new Core({locale: russian});
+
+  t.equal(
+    core.translator.t('choose_file'),
+    'Выберите файл',
+    'should return translated string'
+  );
+
+  t.end();
+});
+
+test('interpolation', function (t) {
+  const english = require('../src/locale/en_US.js');
+  const core = new Core({locale: english});
+
+  t.equal(
+    core.translator.t('you_have_chosen', {'file_name': 'img.jpg'}),
+    'You have chosen: img.jpg',
+    'should return interpolated string'
+  );
+
+  t.end();
+});
+
+test('pluralization', function (t) {
+  const russian = require('../src/locale/ru.js');
+  const core = new Core({locale: russian});
+
+  t.equal(
+    core.translator.t('files_chosen', {'smart_count': '18'}),
+    'Выбрано 18 файлов',
+    'should return interpolated & pluralized string'
+  );
+
+  t.end();
+});