Add a test that shows that bundle update fails loudly in a frozen bundleseg-update-frozen-fails-loudly

1 files changed, 10 insertions, 0 deletions

diff --git a/spec/update/gems_spec.rb b/spec/update/gems_spec.rb
index ed503e3607..4989bcfd5f 100644
--- a/spec/update/gems_spec.rb
+++ b/spec/update/gems_spec.rb
@@ -99,6 +99,16 @@ describe "bundle update" do
       should_not_be_installed "rack 1.2"
     end
   end
+
+  describe "in a frozen bundle" do
+    it "should fail loudly" do
+      bundle "install --deployment"
+      bundle "update"
+
+      expect(out).to match(/You are trying to install in deployment mode after changing.your Gemfile/m)
+      expect(exitstatus).not_to eq(0) if exitstatus
+    end
+  end
 end
 
 describe "bundle update in more complicated situations" do