Upstream commit fixing testcases for fish>=3.1, see
https://github.com/kislyuk/argcomplete/commit/08bfc8a788e8081515d733e67be026d051c726f7

diff --git a/test/test.py b/test/test.py
index e91352b..2c34806 100755
--- a/test/test.py
+++ b/test/test.py
@@ -28,6 +28,8 @@
 
 BASH_VERSION = subprocess.check_output(['bash', '-c', 'echo $BASH_VERSION']).decode()
 BASH_MAJOR_VERSION = int(BASH_VERSION.split('.')[0])
+FISH_VERSION_STR = subprocess.check_output(['fish', '-c', 'echo -n $FISH_VERSION']).decode()
+FISH_VERSION_TUPLE = tuple(int(x) for x in FISH_VERSION_STR.split('.'))
 
 
 class TempDir(object):
@@ -1258,8 +1260,11 @@ class TestFish(_TestSh, unittest.TestCase):
     expected_failures = [
         'test_parse_special_characters',
         'test_comp_point',
-        'test_special_characters_double_quoted'
     ]
+    if FISH_VERSION_TUPLE < (3, 1):
+        expected_failures.extend([
+            'test_special_characters_double_quoted'
+        ])
 
     skipped = [
         'test_single_quotes_in_single_quotes',
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<div class='path'>path: <a href='/guix/log/?id=1eaf500dd684337e4a4f6c2c5d8239cd9bc943fe'>root</a>/<a href='/guix/log/doc?id=1eaf500dd684337e4a4f6c2c5d8239cd9bc943fe'>doc</a>/<a href='/guix/log/doc/fdl-1.3.texi?id=1eaf500dd684337e4a4f6c2c5d8239cd9bc943fe'>fdl-1.3.texi</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/doc/fdl-1.3.texi?id=1eaf500dd684337e4a4f6c2c5d8239cd9bc943fe&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-03-10 20:26:52 +0100'>2020-03-10</span></td><td><a href='/guix/commit/doc/fdl-1.3.texi?id=21656ffa3b6d78a610f0befced20cc9b4b3baab6'>doc: Use HTTPS for external links.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/contributing.texi
  (14.1 Building from Git,
   14.3 The Perfect Setup,
   14.4.1 Software Freedom,
   14.4.4 Synopses and Descriptions,
   14.5.4 Formatting Code):
   Use HTTPS for @uref{}s and @url{}s that support it.

* doc/fdl-1.3.texi
  (Appendix A GNU Free Documentation License):
  Use HTTPS for @uref{}s and @url{}s that support it.

* doc/guix.texi
  (6.3 Build Systems,
   8.8.4 Networking Services,
   8.8.8 Sound Services,
   8.8.16 Web Services,
   8.11 Name Service Switch,
   12.2 Preparing to Use the Bootstrap Binaries);
   Use HTTPS for @uref{}s and @url{}s that support it.

Signed-off-by: Marius Bakke &lt;mbakke@fastmail.com&gt;
</span></span></td><td>Vitaliy Shatrov</td></tr>