1 files changed, 3 insertions, 20 deletions
diff --git a/spec/ruby/command_line/dash_upper_c_spec.rb b/spec/ruby/command_line/dash_upper_c_spec.rb
index 761beaadab..ece1b32105 100644
--- a/spec/ruby/command_line/dash_upper_c_spec.rb
+++ b/spec/ruby/command_line/dash_upper_c_spec.rb
@@ -1,23 +1,6 @@
 require_relative '../spec_helper'
+require_relative 'shared/change_directory'
 
-describe 'The -C command line option' do
-  before :all do
-    @script  = fixture(__FILE__, 'dash_upper_c_script.rb')
-    @tempdir = File.dirname(@script)
-  end
-
-  it 'changes the PWD when using a file' do
-    output = ruby_exe(@script, options: "-C #{@tempdir}")
-    output.should == @tempdir
-  end
-
-  it 'does not need a space after -C for the argument' do
-    output = ruby_exe(@script, options: "-C#{@tempdir}")
-    output.should == @tempdir
-  end
-
-  it 'changes the PWD when using -e' do
-    output = ruby_exe(nil, options: "-C #{@tempdir} -e 'print Dir.pwd'")
-    output.should == @tempdir
-  end
+describe "The -C command line option" do
+  it_behaves_like :command_line_change_directory, "-C"
 end