bugfixing and xandikos compatibility matrix. xandikos now passes with…

… same quirks reported by script

check_server_compatibility.py

@@ -142,7 +142,11 @@ def check_mkcalendar(self):
 
         makeret = self._try_make_calendar(name="Yep", cal_id="pythoncaldav-test")
         if makeret[0]:
-            self._default_calendar = self.principal.make_calendar(name="Yep", cal_id="pythoncaldav-test")
+            try:
+                self._default_calendar = self.principal.make_calendar(name="Yep", cal_id="pythoncaldav-test")
+            except:
+                self._default_calendar = self.principal.calendar(cal_id="pythoncaldav-test")
+            self._default_calendar.events()
             return
         makeret = self._try_make_calendar(cal_id="pythoncaldav-test")
         if makeret[0]:

tests/compatibility_issues.py

@@ -228,16 +228,25 @@
 
     'text_search_is_exact_match_only',
 
-    ## This one is fixed - but still breaks our test code for python 3.7
-    ## TODO: remove this when shredding support for python 3.7
-    ## https://github.com/jelmer/xandikos/pull/194    
-    'category_search_yields_nothing',
     "search_needs_comptype",
 
     ## scheduling is not supported
     "no_scheduling",
 ]
 
+## This can soon be removed (relevant for running tests under python 3.7 and python 3.8)
+## https://github.com/jelmer/xandikos/pull/194    
+'category_search_yields_nothing',
+try:
+    import xandikos.__version__ as xver
+    goodver = (0,2,12)
+    for i in range(0,2):
+        if xver[i]<goodver[i]:
+            xandikos.append('category_search_needs')
+            break
+except Exception:
+    pass
+
 radicale = [
     ## calendar listings and calendar creation works a bit
     ## "weird" on radicale