Fix ref_text of merge request pipelines

Source branch can be removed after the merge and
we have to make sure to avoid rendering links if it's the case.

1 files changed, 46 insertions, 0 deletions

diff --git a/spec/presenters/merge_request_presenter_spec.rb b/spec/presenters/merge_request_presenter_spec.rb
index e5f08aeb1fa..451dc88880c 100644
--- a/spec/presenters/merge_request_presenter_spec.rb
+++ b/spec/presenters/merge_request_presenter_spec.rb
@@ -439,6 +439,52 @@ describe MergeRequestPresenter do
     end
   end
 
+  describe '#source_branch_link' do
+    subject { presenter.source_branch_link }
+
+    let(:presenter) { described_class.new(resource, current_user: user) }
+
+    context 'when source branch exists' do
+      it 'returns link' do
+        allow(resource).to receive(:source_branch_exists?) { true }
+
+        is_expected
+          .to eq("<a class=\"ref-name\" href=\"#{presenter.source_branch_commits_path}\">#{presenter.source_branch}</a>")
+      end
+    end
+
+    context 'when source branch does not exist' do
+      it 'returns text' do
+        allow(resource).to receive(:source_branch_exists?) { false }
+
+        is_expected.to eq("<span class=\"ref-name\">#{presenter.source_branch}</span>")
+      end
+    end
+  end
+
+  describe '#target_branch_link' do
+    subject { presenter.target_branch_link }
+
+    let(:presenter) { described_class.new(resource, current_user: user) }
+
+    context 'when target branch exists' do
+      it 'returns link' do
+        allow(resource).to receive(:target_branch_exists?) { true }
+
+        is_expected
+          .to eq("<a class=\"ref-name\" href=\"#{presenter.target_branch_commits_path}\">#{presenter.target_branch}</a>")
+      end
+    end
+
+    context 'when target branch does not exist' do
+      it 'returns text' do
+        allow(resource).to receive(:target_branch_exists?) { false }
+
+        is_expected.to eq("<span class=\"ref-name\">#{presenter.target_branch}</span>")
+      end
+    end
+  end
+
   describe '#source_branch_with_namespace_link' do
     subject do
       described_class.new(resource, current_user: user).source_branch_with_namespace_link