Merge pull request #4653 from nobu/ignore-uplevel-gemfiles

Ignore any gemfiles in parent directories

(cherry picked from commit eabf2b3)

Author: deivid-rodriguez

lib/rubygems/test_case.rb

@@ -553,6 +553,10 @@ def common_installer_teardown
     Gem.pre_uninstall_hooks.clear
   end
 
+  def without_any_upwards_gemfiles
+    ENV["BUNDLE_GEMFILE"] = File.join(@tempdir, "Gemfile")
+  end
+
   ##
   # A git_gem is used with a gem dependencies file.  The gem created here
   # has no files, just a gem specification for the given +name+ and +version+.

test/rubygems/test_gem_bundler_version_finder.rb

@@ -6,14 +6,12 @@ def setup
     super
 
     @argv = ARGV.dup
-    @env = ENV.to_hash.clone
-    ENV.delete("BUNDLER_VERSION")
     @dollar_0 = $0
+    without_any_upwards_gemfiles
   end
 
   def teardown
     ARGV.replace @argv
-    ENV.replace @env
     $0 = @dollar_0
 
     super

test/rubygems/test_gem_dependency.rb

@@ -3,6 +3,12 @@
 require 'rubygems/dependency'
 
 class TestGemDependency < Gem::TestCase
+  def setup
+    super
+
+    without_any_upwards_gemfiles
+  end
+
   def test_initialize
     d = dep "pkg", "> 1.0"
 

test/rubygems/test_kernel.rb

@@ -8,6 +8,8 @@ def setup
     @old_path = $:.dup
 
     util_make_gems
+
+    without_any_upwards_gemfiles
   end
 
   def teardown