From c76feb338a14a0e6dea494c18fb2d22f474cfc0e Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Sat, 6 Sep 2014 17:08:10 -0400
Subject: [PATCH] unit tests: helpers.lua: hack to avoid empty popen() result

---
 test/unit/helpers.lua | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/test/unit/helpers.lua b/test/unit/helpers.lua
index 5ad0766d61..eaf386d9cf 100644
--- a/test/unit/helpers.lua
+++ b/test/unit/helpers.lua
@@ -64,10 +64,15 @@ function cimport(...)
     return libnvim
   end
 
-  -- preprocess the header
-  local stream = Preprocess.preprocess_stream(unpack(paths))
-  local body = stream:read("*a")
-  stream:close()
+  -- require 'pl.pretty'.dump(paths)
+  local body = nil
+  for i=1, 3 do
+    local stream = Preprocess.preprocess_stream(unpack(paths))
+    body = stream:read("*a")
+    stream:close()
+    if body ~= nil then break end
+  end
+  -- require 'pl.pretty'.dump(body)
 
   -- format it (so that the lines are "unique" statements), also filter out
   -- Objective-C blocks