1 files changed, 15 insertions, 0 deletions
diff --git a/spec/support/issue_tracker_service_shared_example.rb b/spec/support/issue_tracker_service_shared_example.rb
index b6d7436c360..e70b3963d9d 100644
--- a/spec/support/issue_tracker_service_shared_example.rb
+++ b/spec/support/issue_tracker_service_shared_example.rb
@@ -5,3 +5,18 @@ RSpec.shared_examples 'issue tracker service URL attribute' do |url_attr|
   it { is_expected.not_to allow_value('ftp://example.com').for(url_attr) }
   it { is_expected.not_to allow_value('herp-and-derp').for(url_attr) }
 end
+
+RSpec.shared_examples 'allows project key on reference pattern' do |url_attr|
+  it 'allows underscores in the project name' do
+    expect(subject.reference_pattern.match('EXT_EXT-1234')[0]).to eq 'EXT_EXT-1234'
+  end
+
+  it 'allows numbers in the project name' do
+    expect(subject.reference_pattern.match('EXT3_EXT-1234')[0]).to eq 'EXT3_EXT-1234'
+  end
+
+  it 'requires the project name to begin with A-Z' do
+    expect(subject.reference_pattern.match('3EXT_EXT-1234')).to eq nil
+    expect(subject.reference_pattern.match('EXT_EXT-1234')[0]).to eq 'EXT_EXT-1234'
+  end
+end