1 files changed, 3 insertions, 9 deletions

diff --git a/cmdtest b/cmdtest
index 42927e3..02cffcf 100755
--- a/cmdtest
+++ b/cmdtest
@@ -190,7 +190,8 @@ class CommandTester(cliapp.Application):
         if stderr_diff:
             errors.append(TestFailure(test, 'stderr diff:\n%s' % stderr_diff))
 
-        expected_exit = int(self.cat(test.exit or '/dev/null').strip() or '0')
+        contents = cmdtestlib.cat(test.exit or '/dev/null')
+        expected_exit = int(contents.strip() or '0')
         if exit != expected_exit:
             errors.append(TestFailure(test, 
                                       'got exit code %s, expected %s' %
@@ -204,15 +205,8 @@ class CommandTester(cliapp.Application):
         
         return errors
 
-    def cat(self, filename):
-        if os.path.exists(filename):
-            with open(filename) as f:
-                return f.read()
-        else:
-            return ''
-
     def lines(self, filename):
-        return self.cat(filename).splitlines()
+        return cmdtestlib.cat(filename).splitlines()
 
     def expand(self, strings):
         variables = {