Use Pathname#join instead of string interpolation

2 files changed, 3 insertions, 3 deletions

diff --git a/spec/commands/exec_spec.rb b/spec/commands/exec_spec.rb
index 20b07e064b..049ec830fb 100644
--- a/spec/commands/exec_spec.rb
+++ b/spec/commands/exec_spec.rb
@@ -61,7 +61,7 @@ RSpec.describe "bundle exec" do
   it "handles --keep-file-descriptors" do
     require "tempfile"
 
-    bundle_bin = File.expand_path("#{Spec::Path.bindir}/bundle", __FILE__)
+    bundle_bin = File.expand_path(Spec::Path.bindir.join("bundle"), __FILE__)
 
     command = Tempfile.new("io-test")
     command.sync = true
@@ -474,7 +474,7 @@ RSpec.describe "bundle exec" do
       Bundler.rubygems.extend(Monkey)
       G
       bundle "install --deployment"
-      bundle "exec ruby -e '`#{Spec::Path.bindir}/bundler -v`; puts $?.success?'"
+      bundle "exec ruby -e '`#{Spec::Path.bindir.join("bundler")} -v`; puts $?.success?'"
       expect(out).to match("true")
     end
   end
diff --git a/spec/commands/newgem_spec.rb b/spec/commands/newgem_spec.rb
index f9420e46dd..d14aee4136 100644
--- a/spec/commands/newgem_spec.rb
+++ b/spec/commands/newgem_spec.rb
@@ -170,7 +170,7 @@ RSpec.describe "bundle gem" do
 
     # This spec cannot have `git` available in the test env
     before do
-      bundle_bin = File.expand_path("#{Spec::Path.bindir}/bundle", __FILE__)
+      bundle_bin = File.expand_path(Spec::Path.bindir.join("bundle"), __FILE__)
       load_paths = [lib, spec]
       load_path_str = "-I#{load_paths.join(File::PATH_SEPARATOR)}"