Add test to ensure that bundle install --force doesn't leave any old code on gem reinstall

1 files changed, 8 insertions, 0 deletions

diff --git a/spec/install/force_spec.rb b/spec/install/force_spec.rb
index 1ab408b009..87cc0a2c12 100644
--- a/spec/install/force_spec.rb
+++ b/spec/install/force_spec.rb
@@ -18,6 +18,14 @@ describe "bundle install" do
       expect(exitstatus).to eq(0) if exitstatus
     end
 
+    it "overwrites old gem code" do
+      bundle "install"
+      default_bundle_path("gems/rack-1.0.0/lib/rack.rb").open('w'){|f| f.write("blah blah blah") }
+      bundle "install --force"
+
+      expect(default_bundle_path("gems/rack-1.0.0/lib/rack.rb").open{|f| f.read }).to eq("RACK = '1.0.0'\n")
+    end
+
     it "doesn't reinstall bundler" do
       bundle "install"
       bundle "install --force"