From 8e6a83911027de167d689d060ce581f653d73213 Mon Sep 17 00:00:00 2001
From: George Roman <george.roman.99@gmail.com>
Date: Tue, 24 Jul 2018 11:09:42 +0300
Subject: Tests: add test_env.run_in_tmp utility function

---
 spec/util/test_env.lua | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'spec/util')

diff --git a/spec/util/test_env.lua b/spec/util/test_env.lua
index 0218aa53..181f4693 100644
--- a/spec/util/test_env.lua
+++ b/spec/util/test_env.lua
@@ -101,6 +101,25 @@ function test_env.get_tmp_path()
    return path
 end
 
+--- Helper function that runs the given function inside
+-- a temporary directory, isolating it
+-- @param f function: the function to be run
+function test_env.run_in_tmp(f, finally)
+   local olddir = lfs.currentdir()
+   local tmpdir = test_env.get_tmp_path()
+   lfs.mkdir(tmpdir)
+   lfs.chdir(tmpdir)
+
+   if finally then
+      finally(function()
+         lfs.chdir(olddir)
+         lfs.rmdir(tmpdir)
+      end)
+   end
+
+   f(tmpdir)
+end
+
 --- Helper function for execute_bool and execute_output
 -- @param command string: command to execute
 -- @param print_command boolean: print command if 'true'
-- 
cgit v1.2.3-55-g6feb