[diffoscope] 01/01: do not try to execute the command if the command is not available

[Mattia Rizzolo]

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mattia pushed a commit to branch master
in repository diffoscope.

commit 742f6e86ee712bbda8bbfa0ae08901de6757ee7f
Author: Mattia Rizzolo <mattia at debian.org>
Date:   Sat Aug 13 16:20:30 2016 +0000

    do not try to execute the command if the command is not available
---
 tests/comparators/conftest.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/comparators/conftest.py b/tests/comparators/conftest.py
index efdcb20..66276e0 100644
--- a/tests/comparators/conftest.py
+++ b/tests/comparators/conftest.py
@@ -33,6 +33,8 @@ def tool_missing(cmd):
 
 
 def tool_older_than(cmdline, min_ver, vcls=StrictVersion):
+    if find_executable(cmdline[0]) is None:
+        return True
     actual_ver = subprocess.check_output(cmdline).decode("utf-8").strip()
     return vcls(actual_ver) < vcls(min_ver)
 

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