Create test lib in tmp, not in the root of the repo

So it runs in the isolated tmp as expected. Also, as it is written, this
spec would leave a leftover `_gem` folder in the root of the repo in
case it fails, since the root of the repo is obviously not cleaned up
after each test.

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/cache/path_spec.rb b/spec/cache/path_spec.rb
index 79e8b4a82b..3f3d4ec893 100644
--- a/spec/cache/path_spec.rb
+++ b/spec/cache/path_spec.rb
@@ -31,8 +31,8 @@ RSpec.describe "bundle cache with path" do
   end
 
   it "copies when the path is outside the bundle and the paths intersect" do
-    libname = File.basename(Dir.pwd) + "_gem"
-    libpath = File.join(File.dirname(Dir.pwd), libname)
+    libname = File.basename(bundled_app) + "_gem"
+    libpath = File.join(File.dirname(bundled_app), libname)
 
     build_lib libname, :path => libpath