3 files changed, 15 insertions, 13 deletions

diff --git a/spec/plugins/install_spec.rb b/spec/plugins/install_spec.rb
index 669ed09fb5..663363ca21 100644
--- a/spec/plugins/install_spec.rb
+++ b/spec/plugins/install_spec.rb
@@ -155,6 +155,10 @@ RSpec.describe "bundler plugin install" do
   end
 
   context "Gemfile eval" do
+    before do
+      allow(Bundler::SharedHelpers).to receive(:find_gemfile).and_return(bundled_app_gemfile)
+    end
+
     it "installs plugins listed in gemfile" do
       gemfile <<-G
         source '#{file_uri_for(gem_repo2)}'
@@ -245,6 +249,7 @@ RSpec.describe "bundler plugin install" do
 
   describe "local plugin" do
     it "is installed when inside an app" do
+      allow(Bundler::SharedHelpers).to receive(:find_gemfile).and_return(bundled_app_gemfile)
       gemfile ""
       bundle "plugin install foo --source #{file_uri_for(gem_repo2)}"
 
@@ -287,21 +292,16 @@ RSpec.describe "bundler plugin install" do
         end
 
         # outside the app
-        Dir.chdir tmp
-        bundle "plugin install fubar --source #{file_uri_for(gem_repo2)}"
+        bundle "plugin install fubar --source #{file_uri_for(gem_repo2)}", :dir => tmp
       end
 
       it "inside the app takes precedence over global plugin" do
-        Dir.chdir bundled_app
-
         bundle "shout"
         expect(out).to eq("local_one")
       end
 
       it "outside the app global plugin is used" do
-        Dir.chdir tmp
-
-        bundle "shout"
+        bundle "shout", :dir => tmp
         expect(out).to eq("global_one")
       end
     end
diff --git a/spec/plugins/source/example_spec.rb b/spec/plugins/source/example_spec.rb
index f2151a5a73..aac506dc9a 100644
--- a/spec/plugins/source/example_spec.rb
+++ b/spec/plugins/source/example_spec.rb
@@ -215,6 +215,8 @@ RSpec.describe "real source plugins" do
       build_repo2 do
         build_plugin "bundler-source-gitp" do |s|
           s.write "plugins.rb", <<-RUBY
+            require "open3"
+
             class SPlugin < Bundler::Plugin::API
               source "gitp"
 
@@ -254,9 +256,7 @@ RSpec.describe "real source plugins" do
                 mkdir_p(install_path.dirname)
                 rm_rf(install_path)
                 `git clone --no-checkout --quiet "\#{cache_path}" "\#{install_path}"`
-                Dir.chdir install_path do
-                  `git reset --hard \#{revision}`
-                end
+                Open3.capture2e("git reset --hard \#{revision}", :chdir => install_path)
 
                 spec_path = install_path.join("\#{spec.full_name}.gemspec")
                 spec_path.open("wb") {|f| f.write spec.to_ruby }
@@ -310,9 +310,8 @@ RSpec.describe "real source plugins" do
                   cache_repo
                 end
 
-                Dir.chdir cache_path do
-                  `git rev-parse --verify \#{@ref}`.strip
-                end
+                output, _status = Open3.capture2e("git rev-parse --verify \#{@ref}", :chdir => cache_path)
+                output.strip
               end
 
               def base_name
diff --git a/spec/plugins/source_spec.rb b/spec/plugins/source_spec.rb
index c8deee96b1..14643e5c81 100644
--- a/spec/plugins/source_spec.rb
+++ b/spec/plugins/source_spec.rb
@@ -21,6 +21,7 @@ RSpec.describe "bundler source plugin" do
         end
       G
 
+      allow(Bundler::SharedHelpers).to receive(:find_gemfile).and_return(bundled_app_gemfile)
       plugin_should_be_installed("bundler-source-psource")
     end
 
@@ -75,6 +76,7 @@ RSpec.describe "bundler source plugin" do
         end
 
         it "installs the explicit one" do
+          allow(Bundler::SharedHelpers).to receive(:find_gemfile).and_return(bundled_app_gemfile)
           plugin_should_be_installed("another-psource")
         end
 
@@ -100,6 +102,7 @@ RSpec.describe "bundler source plugin" do
         end
 
         it "installs the default one" do
+          allow(Bundler::SharedHelpers).to receive(:find_gemfile).and_return(bundled_app_gemfile)
           plugin_should_be_installed("bundler-source-psource")
         end
       end