Issue #9425: skip tests if a filename is not encodable

Lib/test/test_import.py

@@ -291,6 +291,11 @@ class ImportTests(unittest.TestCase):
 
     def test_import_by_filename(self):
         path = os.path.abspath(TESTFN)
+        encoding = sys.getfilesystemencoding()
+        try:
+            path.encode(encoding)
+        except UnicodeEncodeError:
+            self.skipTest('path is not encodable to {}'.format(encoding))
         with self.assertRaises(ImportError) as c:
             __import__(path)
         self.assertEqual("Import by filename is not supported.",

Lib/test/test_sax.py

@@ -18,6 +18,11 @@ import unittest
 
 TEST_XMLFILE = findfile("test.xml", subdir="xmltestdata")
 TEST_XMLFILE_OUT = findfile("test.xml.out", subdir="xmltestdata")
+try:
+    TEST_XMLFILE.encode("utf8")
+    TEST_XMLFILE_OUT.encode("utf8")
+except UnicodeEncodeError:
+    raise unittest.SkipTest("filename is not encodable to utf8")
 
 ns_uri = "http://www.python.org/xml-ns/saxtest/"
 

Lib/test/test_sys.py

@@ -509,8 +509,10 @@ class SysModuleTest(unittest.TestCase):
         p = subprocess.Popen([sys.executable, "-c", code], stderr=subprocess.PIPE)
         stdout, stderr = p.communicate()
         self.assertEqual(p.returncode, 1)
-        self.assert_(b"UnicodeEncodeError:" in stderr,
-            "%r not in %s" % (b"UniodeEncodeError:", ascii(stderr)))
+        self.assertIn(
+            br"UnicodeEncodeError: 'utf-8' codec can't encode character "
+            br"'\udcff' in position 7: surrogates not allowed",
+            stderr)
 
     def test_sys_flags(self):
         self.assertTrue(sys.flags)

Lib/test/test_urllib.py

@@ -232,8 +232,12 @@ class urlretrieve_FileTests(unittest.TestCase):
             except: pass
 
     def constructLocalFileUrl(self, filePath):
-        return "file://%s" % urllib.request.pathname2url(
-            os.path.abspath(filePath))
+        filePath = os.path.abspath(filePath)
+        try:
+            filePath.encode("utf8")
+        except UnicodeEncodeError:
+            raise unittest.SkipTest("filePath is not encodable to utf8")
+        return "file://%s" % urllib.request.pathname2url(filePath)
 
     def createNewTempFile(self, data=b""):
         """Creates a new temporary file containing the specified data,

Lib/test/test_urllib2.py

@@ -597,6 +597,10 @@ class OpenerDirectorTests(unittest.TestCase):
 
 
 def sanepathname2url(path):
+    try:
+        path.encode("utf8")
+    except UnicodeEncodeError:
+        raise unittest.SkipTest("path is not encodable to utf8")
     urlpath = urllib.request.pathname2url(path)
     if os.name == "nt" and urlpath.startswith("///"):
         urlpath = urlpath[2:]

Lib/test/test_xml_etree.py

@@ -13,6 +13,7 @@
 
 import sys
 import cgi
+import unittest
 
 from test import support
 from test.support import findfile
@@ -20,6 +21,10 @@ from test.support import findfile
 from xml.etree import ElementTree as ET
 
 SIMPLE_XMLFILE = findfile("simple.xml", subdir="xmltestdata")
+try:
+    SIMPLE_XMLFILE.encode("utf8")
+except UnicodeEncodeError:
+    raise unittest.SkipTest("filename is not encodable to utf8")
 SIMPLE_NS_XMLFILE = findfile("simple-ns.xml", subdir="xmltestdata")
 
 SAMPLE_XML = """\