diff --git a/test/test_Autotrigger.py b/test/test_Autotrigger.py
index 86a1e2b..bbac8b4 100644
--- a/test/test_Autotrigger.py
+++ b/test/test_Autotrigger.py
@@ -1,23 +1,10 @@
 from test.vim_test_case import VimTestCase as _VimTest
 from test.constant import *
 
-import subprocess
-
-
-def has_patch(version, executable):
-    output = subprocess.check_output([executable, "--version"])
-    patch = 1
-    for line in output.decode('utf-8').split("\n"):
-        if line.startswith("Included patches:"):
-            patch = line.split('-')[1]
-
-    return int(patch) >= version
-
-
 def check_required_vim_version(test):
     if test.vim_flavor == 'neovim':
         return None
-    if not has_patch(214, test.vim._vim_executable):
+    if not test.vim.has_patch(214):
         return 'Vim newer than 7.4.214 is required'
     else:
         return None
@@ -58,7 +45,7 @@ class Autotrigger_CanExpandOnTriggerWithLengthMoreThanOne(_VimTest):
 
 class Autotrigger_WillProduceNoExceptionWithVimLowerThan214(_VimTest):
     skip_if = lambda self: 'Vim older than 7.4.214 is required' \
-        if has_patch(214, self.vim._vim_executable) else None
+        if self.vim.has_patch(214) else None
 
     files = { 'us/all.snippets': r"""
         snippet abc "desc" A
diff --git a/test/test_Editing.py b/test/test_Editing.py
index c023a68..e200f0b 100644
--- a/test/test_Editing.py
+++ b/test/test_Editing.py
@@ -1,6 +1,16 @@
 from test.vim_test_case import VimTestCase as _VimTest
 from test.constant import *
 
+
+def check_required_vim_version(test):
+    if test.vim_flavor == 'neovim':
+        return None
+    if not test.vim.has_patch(1):
+        return 'Vim newer than 7.4.1 is required'
+    else:
+        return None
+
+
 # Undo of Snippet insertion  {{{#
 
 
@@ -122,11 +132,13 @@ class Backspace_TabStop_NotZero(_VimTest):
 # End: Pressing BS in TabStop  #}}}
 
 class UpdateModifiedSnippetWithoutCursorMove(_VimTest):
+    skip_if = check_required_vim_version
     snippets = ('test', '${1:one}(${2:xxx})${3:three}')
     keys = 'test' + EX + 'aaaaa' + JF + BS + JF + '3333'
     wanted = 'aaaaa()3333'
 
 class UpdateModifiedSnippetWithoutCursorMove2(_VimTest):
+    skip_if = check_required_vim_version
     snippets = ('test', '''\
 private function ${1:functionName}(${2:arguments}):${3:Void}
 {
diff --git a/test/vim_interface.py b/test/vim_interface.py
index cff69ff..3c3c35a 100644
--- a/test/vim_interface.py
+++ b/test/vim_interface.py
@@ -91,6 +91,20 @@ class VimInterface(TempFileManager):
     def __init__(self, vim_executable, name):
         TempFileManager.__init__(self, name)
         self._vim_executable = vim_executable
+        self._patch_version = None
+
+    def has_patch(self, version):
+        if self._patch_version is None:
+            output = subprocess.check_output([
+                self._vim_executable, "--version"
+            ])
+
+            self._patch_version = 0
+            for line in output.decode('utf-8').split("\n"):
+                if line.startswith("Included patches:"):
+                    self._patch_version = line.split('-')[1]
+
+        return int(self._patch_version) >= version
 
     def get_buffer_data(self):
         buffer_path = self.unique_name_temp(prefix='buffer_')