diff --git a/lib/ansible/cli/config.py b/lib/ansible/cli/config.py
index e22a607df10..17a67584f9a 100644
--- a/lib/ansible/cli/config.py
+++ b/lib/ansible/cli/config.py
@@ -68,11 +68,11 @@ class ConfigCLI(CLI):
         super(ConfigCLI, self).run()
 
         if self.options.config_file:
-            self.config_file = to_bytes(unfrackpath(self.options.config_file, follow=False))
+            self.config_file = unfrackpath(self.options.config_file, follow=False)
             self.config = ConfigManager(self.config_file)
         else:
             self.config = ConfigManager()
-            self.config_file = to_bytes(find_ini_config_file())
+            self.config_file = find_ini_config_file()
         try:
             if not os.path.exists(self.config_file):
                 raise AnsibleOptionsError("%s does not exist or is not accessible" % (self.config_file))
diff --git a/lib/ansible/config/manager.py b/lib/ansible/config/manager.py
index db9e08b57f0..49972adb68a 100644
--- a/lib/ansible/config/manager.py
+++ b/lib/ansible/config/manager.py
@@ -116,7 +116,7 @@ def get_config_type(cfile):
 
     ftype = None
     if cfile is not None:
-        ext = to_text(os.path.splitext(cfile)[-1])
+        ext = os.path.splitext(cfile)[-1]
         if ext in ('.ini', '.cfg'):
             ftype = 'ini'
         elif ext in ('.yaml', '.yml'):
diff --git a/test/integration/targets/ansible/ansible-testé.cfg b/test/integration/targets/ansible/ansible-testé.cfg
new file mode 100644
index 00000000000..61a99f48bbd
--- /dev/null
+++ b/test/integration/targets/ansible/ansible-testé.cfg
@@ -0,0 +1,2 @@
+[defaults]
+remote_user = admin
diff --git a/test/integration/targets/ansible/runme.sh b/test/integration/targets/ansible/runme.sh
index 537351ffb3f..5fada97789c 100755
--- a/test/integration/targets/ansible/runme.sh
+++ b/test/integration/targets/ansible/runme.sh
@@ -1,9 +1,17 @@
 #!/usr/bin/env bash
 
-set -eux
+set -eux -o pipefail
 
 ansible --version
 ansible --help
 
 ansible testhost -i ../../inventory -m ping  "$@"
 ansible testhost -i ../../inventory -m setup "$@"
+
+ansible-config -c ./ansible-testé.cfg view | grep 'remote_user = admin'
+ansible-config -c ./ansible-testé.cfg dump | grep 'DEFAULT_REMOTE_USER([^)]*) = admin\>'
+ANSIBLE_REMOTE_USER=administrator ansible-config dump| grep 'DEFAULT_REMOTE_USER([^)]*) = administrator\>'
+ansible-config list | grep 'DEFAULT_REMOTE_USER'
+
+# 'view' command must fail when config file is missing
+ansible-config -c ./ansible-non-existent.cfg view && exit 1 || echo 'Failure is expected'
diff --git a/test/runner/lib/git.py b/test/runner/lib/git.py
index f34b0ee42d9..9fbc91c0241 100644
--- a/test/runner/lib/git.py
+++ b/test/runner/lib/git.py
@@ -18,13 +18,16 @@ class Git(object):
         self.args = args
         self.git = 'git'
 
-    def get_diff(self, args):
+    def get_diff(self, args, git_options=None):
         """
         :type args: list[str]
+        :type options: list[str]
         :rtype: list[str]
         """
         cmd = ['diff'] + args
-        return self.run_git_split(cmd, '\n', str_errors='replace')
+        if git_options is None:
+            git_options = ['-c', 'core.quotePath=']
+        return self.run_git_split(git_options + cmd, '\n', str_errors='replace')
 
     def get_diff_names(self, args):
         """