Expand coverage for "system checks" (#24216)

spec/lib/admin/system_check/message_spec.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe Admin::SystemCheck::Message do
+  subject(:check) { described_class.new(:key_value, :value_value, :action_value, :critical_value) }
+
+  it 'providers readers when initialized' do
+    expect(check.key).to eq :key_value
+    expect(check.value).to eq :value_value
+    expect(check.action).to eq :action_value
+    expect(check.critical).to eq :critical_value
+  end
+end