[test_i18n] Add a test case for I18N

test/test_i18n.py

@@ -0,0 +1,111 @@
+#!/usr/bin/env python
+# coding: utf-8
+
+from __future__ import unicode_literals
+
+import contextlib
+import os
+import shutil
+import subprocess
+import sys
+
+try:
+    import unittest
+    unittest.TestCase.setUpClass
+except AttributeError:
+    import unittest2 as unittest
+
+# Allow direct execution
+rootDir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, rootDir)
+
+from youtube_dl.version import __version__
+from youtube_dl.compat import subprocess_check_output
+from youtube_dl.utils import decodeFilename
+
+
+@contextlib.contextmanager
+def chdir_to(path):
+    oldpwd = os.getcwd()
+    os.chdir(os.path.join(decodeFilename(rootDir), path))
+    yield
+    os.chdir(oldpwd)
+
+
+class I18NTestCase(object):
+    @classmethod
+    def setUpClass(cls):
+        with chdir_to('.'):
+            cls.make('update-gmo')
+
+        cls.install()
+
+        # avoid false positive
+        with chdir_to('.'):
+            shutil.rmtree(os.path.join('share', 'locale'))
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.uninstall()
+
+    @classmethod
+    def make(cls, target):
+        with chdir_to('.'):
+            subprocess.check_call([
+                'make', target], env=dict(os.environ, PYTHON=sys.executable))
+
+    def test_lang_opt(self):
+        def output_with_lang_opt(lang):
+            return subprocess_check_output([
+                sys.executable, self.PROGRAM, 'i18n:test', '--lang', lang
+            ]).decode('utf-8').strip()
+
+        self.assertEqual(output_with_lang_opt('en_US.UTF-8'), 'I18N test message')
+        self.assertEqual(output_with_lang_opt('zh_TW.UTF-8'), 'I18N測試訊息')
+
+    def test_lc_all(self):
+        def output_with_lc_all(lang):
+            return subprocess_check_output([
+                sys.executable, self.PROGRAM, 'i18n:test'
+            ], env=dict(os.environ, LC_ALL=lang)).decode('utf-8').strip()
+
+        self.assertEqual(output_with_lc_all('en_US.UTF-8'), 'I18N test message')
+        self.assertEqual(output_with_lc_all('zh_TW.UTF-8'), 'I18N測試訊息')
+
+
+@unittest.skipUnless(os.environ.get('VIRTUAL_ENV'), 'Requires virtualenv because of call to pip install')
+class TestPipInstall(I18NTestCase, unittest.TestCase):
+    PROGRAM = os.path.join(os.environ['VIRTUAL_ENV'], 'bin', 'youtube-dl')
+
+    @classmethod
+    def install(cls):
+        with chdir_to('.'):
+            subprocess.check_call([sys.executable, 'setup.py', '--quiet', 'sdist'])
+
+        with chdir_to('test'):
+            subprocess.check_call([
+                'pip', 'install', '--quiet',
+                os.path.join('..', 'dist', 'youtube_dl-%s.tar.gz' % __version__)])
+
+    @classmethod
+    def uninstall(cls):
+        with chdir_to('test'):
+            subprocess.check_call(['pip', 'uninstall', '--yes', 'youtube_dl'])
+
+
+class TestDirectInstall(I18NTestCase, unittest.TestCase):
+    PROGRAM = os.path.join(os.environ['VIRTUAL_ENV'], 'bin', 'youtube-dl')
+
+    @classmethod
+    def install(cls):
+        with chdir_to('.'):
+            subprocess.check_call([sys.executable, 'setup.py', '--quiet', 'install'])
+
+    @classmethod
+    def uninstall(cls):
+        with chdir_to('test'):
+            subprocess.check_call(['pip', 'uninstall', '--yes', 'youtube_dl'])
+
+
+if __name__ == '__main__':
+    unittest.main()