Preserve PATH in with_clean_env

1 files changed, 15 insertions, 0 deletions

diff --git a/spec/runtime/with_clean_env_spec.rb b/spec/runtime/with_clean_env_spec.rb
index 0ceb4adf05..55c6ed98ed 100644
--- a/spec/runtime/with_clean_env_spec.rb
+++ b/spec/runtime/with_clean_env_spec.rb
@@ -4,12 +4,15 @@ describe "Bundler.with_env helpers" do
   shared_examples_for "Bundler.with_*_env" do
     it "should reset and restore the environment" do
       gem_path = ENV["GEM_PATH"]
+      path = ENV["PATH"]
 
       Bundler.with_clean_env do
         expect(`echo $GEM_PATH`.strip).not_to eq(gem_path)
+        expect(`echo $PATH`.strip).not_to eq(path)
       end
 
       expect(ENV["GEM_PATH"]).to eq(gem_path)
+      expect(ENV["PATH"]).to eq(path)
     end
   end
 
@@ -35,6 +38,18 @@ describe "Bundler.with_env helpers" do
       expect(result).to eq("true")
     end
 
+    it "should keep the original PATH even in sub processes" do
+      gemfile ""
+      bundle "install --path vendor/bundle"
+
+      code = "Bundler.with_clean_env do;" \
+             "  print ENV['PATH'] != '';" \
+             "end"
+
+      result = bundle "exec ruby -e #{code.inspect}"
+      expect(result).to eq("true")
+    end
+
     it "should not pass any bundler environment variables" do
       Bundler.with_clean_env do
         expect(`echo $BUNDLE_PATH`.strip).not_to eq("./Gemfile")