Add testcase for #1860

sphinx/search/ja.py

@@ -29,6 +29,7 @@ try:
 except ImportError:
     native_module = False
 
+from sphinx.errors import SphinxError
 from sphinx.search import SearchLanguage
 
 
@@ -49,10 +50,14 @@ class MecabBinder(object):
         else:
             result = self.ctypes_libmecab.mecab_sparse_tostr(
                 self.ctypes_mecab, input.encode(self.dict_encode))
+            if result is None:
+                raise SphinxError('Failed to tokenize text:\nMecab: %s\nInput:\n%s' %
+                                  (self.ctypes_mecab, input))
         if PY3:
             return result.split(' ')
         else:
             return result.decode(self.dict_encode).split(' ')
+        return result.decode(self.dict_encode).split(' ')
 
     def init_native(self, options):
         param = '-Owakati'

tests/test_build_manpage.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+"""
+    test_build_manpage
+    ~~~~~~~~~~~~~~~~~~
+
+    Test the build process with manpage builder with the test root.
+
+    :copyright: Copyright 2007-2015 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+from __future__ import print_function
+
+from util import with_app
+
+
+@with_app(buildername='man')
+def test_all(app, status, warning):
+    app.builder.build_all()
+    assert (app.outdir / 'SphinxTests.1').exists()
+
+    content = (app.outdir / 'SphinxTests.1').text()
+    assert r'\fBprint \fP\fIi\fP\fB\en\fP' in content