1 files changed, 37 insertions, 1 deletions
diff --git a/spec/services/merge_requests/squash_service_spec.rb b/spec/services/merge_requests/squash_service_spec.rb
index a53314ed737..1ec1dc0f6eb 100644
--- a/spec/services/merge_requests/squash_service_spec.rb
+++ b/spec/services/merge_requests/squash_service_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-describe MergeRequests::SquashService do
+RSpec.describe MergeRequests::SquashService do
   include GitHelpers
 
   let(:service) { described_class.new(project, user, { merge_request: merge_request }) }
@@ -131,6 +131,42 @@ describe MergeRequests::SquashService do
       include_examples 'the squash succeeds'
     end
 
+    context 'when squashing is disabled by default on the project' do
+      # Squashing is disabled by default, but it should still allow you
+      # to squash-and-merge if selected through the UI
+      let(:merge_request) { merge_request_with_only_new_files }
+
+      before do
+        merge_request.project.project_setting.squash_default_off!
+      end
+
+      include_examples 'the squash succeeds'
+    end
+
+    context 'when squashing is forbidden on the project' do
+      let(:merge_request) { merge_request_with_only_new_files }
+
+      before do
+        merge_request.project.project_setting.squash_never!
+      end
+
+      it 'raises a squash error' do
+        expect(service.execute).to match(
+          status: :error,
+          message: a_string_including('does not allow squashing commits when merge requests are accepted'))
+      end
+    end
+
+    context 'when squashing is enabled by default on the project' do
+      let(:merge_request) { merge_request_with_only_new_files }
+
+      before do
+        merge_request.project.project_setting.squash_always!
+      end
+
+      include_examples 'the squash succeeds'
+    end
+
     context 'when squashing with files too large to display' do
       let(:merge_request) { merge_request_with_large_files }