1 files changed, 21 insertions, 0 deletions
diff --git a/spec/rubocop/cop/gitlab/change_timezone_spec.rb b/spec/rubocop/cop/gitlab/change_timezone_spec.rb
new file mode 100644
index 00000000000..af76559a9fa
--- /dev/null
+++ b/spec/rubocop/cop/gitlab/change_timezone_spec.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require 'rubocop'
+require 'rubocop/rspec/support'
+require_relative '../../../../rubocop/cop/gitlab/change_timzone'
+
+describe RuboCop::Cop::Gitlab::ChangeTimezone do
+  include CopHelper
+
+  subject(:cop) { described_class.new }
+
+  context 'Time.zone=' do
+    it 'registers an offense with no 2nd argument' do
+      expect_offense(<<~PATTERN.strip_indent)
+        Time.zone = 'Awkland'
+        ^^^^^^^^^^^^^^^^^^^^^ Do not change timezone in the runtime (application or rspec), it could result in silently modifying other behavior.
+      PATTERN
+    end
+  end
+end