Fix #2158: test_latex_build.test_footnote and some tests fail on Windows environment with py3

tests/path.py

@@ -10,7 +10,7 @@
 import os
 import sys
 import shutil
-from codecs import open
+from io import open
 
 from six import PY2, text_type
 
@@ -126,21 +126,23 @@ class path(text_type):
     def utime(self, arg):
         os.utime(self, arg)
 
-    def write_text(self, text, **kwargs):
+    def write_text(self, text, encoding='utf-8', **kwargs):
         """
         Writes the given `text` to the file.
         """
-        f = open(self, 'w', **kwargs)
+        if isinstance(text, bytes):
+            text = text.decode(encoding)
+        f = open(self, 'w', encoding=encoding, **kwargs)
         try:
             f.write(text)
         finally:
             f.close()
 
-    def text(self, **kwargs):
+    def text(self, encoding='utf-8', **kwargs):
         """
         Returns the text in the file.
         """
-        f = open(self, mode='U', **kwargs)
+        f = open(self, mode='U', encoding=encoding, **kwargs)
         try:
             return f.read()
         finally:

tests/test_build.py

@@ -58,12 +58,12 @@ def test_build_all():
             """))
 
         master_doc = srcdir / 'contents.txt'
-        master_doc.write_bytes((master_doc.text() + dedent("""
+        master_doc.write_text(master_doc.text() + dedent(u"""
                 .. toctree::
 
                    %(test_name)s/%(test_name)s
                 """ % {'test_name': test_name})
-        ).encode('utf-8'))
+        )
 
     # note: no 'html' - if it's ok with dirhtml it's ok with html
     for buildername in ['dirhtml', 'singlehtml', 'latex', 'texinfo', 'pickle',