Fix test by avoiding setting environment variable globallyaxil-version-prefix-build-time

1 files changed, 3 insertions, 1 deletions

diff --git a/spec/lib/task_helpers_spec.rb b/spec/lib/task_helpers_spec.rb
index cca9ac69..2281bdf5 100644
--- a/spec/lib/task_helpers_spec.rb
+++ b/spec/lib/task_helpers_spec.rb
@@ -17,7 +17,9 @@ describe TaskHelpers do
     subject(:charts_stable_branch) { described_class.new.charts_stable_branch }
 
     context 'when GitLab version is 15-0-stable' do
-      ENV['CI_COMMIT_REF_NAME'] = '15.0'
+      before do
+        stub_const('ENV', { 'CI_COMMIT_REF_NAME' => '15.0' })
+      end
 
       let(:stable_branch_name) { '15-0-stable' }