Add `mktmpdir` helper method.

1 files changed, 1 insertions, 5 deletions

diff --git a/Library/Homebrew/test/sandbox_spec.rb b/Library/Homebrew/test/sandbox_spec.rb
index 98634bf3c..0d349f6eb 100644
--- a/Library/Homebrew/test/sandbox_spec.rb
+++ b/Library/Homebrew/test/sandbox_spec.rb
@@ -3,17 +3,13 @@ require "sandbox"
 RSpec::Matchers.define_negated_matcher :not_matching, :matching
 
 describe Sandbox do
-  let(:dir) { @dir = Pathname.new(Dir.mktmpdir) }
+  let(:dir) { mktmpdir }
   let(:file) { dir/"foo" }
 
   before(:each) do
     skip "Sandbox not implemented." unless described_class.available?
   end
 
-  after(:each) do
-    dir.rmtree unless @dir.nil?
-  end
-
   specify "#formula?" do
     f = formula { url "foo-1.0" }
     f2 = formula { url "bar-1.0" }