Add ApplicationPolicy default permission and scope regression specs

spec/policies/application_policy_spec.rb

@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe ApplicationPolicy, type: :policy do
+  let(:record) { Object.new }
+
+  describe 'default action permissions' do
+    context 'with an Axis Mundi user' do
+      subject { described_class.new(create(:user, :with_axis_mundi_role), record) }
+
+      %i[index show create new update edit destroy].each do |action|
+        it { is_expected.to permit_action(action) }
+      end
+    end
+
+    context 'with a regular user' do
+      subject { described_class.new(create(:user), record) }
+
+      %i[index show create new update edit destroy].each do |action|
+        it { is_expected.not_to permit_action(action) }
+      end
+    end
+
+    context 'with a nil user' do
+      subject { described_class.new(nil, record) }
+
+      %i[index show create new update edit destroy].each do |action|
+        it { is_expected.not_to permit_action(action) }
+      end
+    end
+  end
+
+  describe 'Scope#resolve' do
+    let!(:visible_role) { create(:role, kind: 'Scoped Role A') }
+    let!(:hidden_role) { create(:role, kind: 'Scoped Role B') }
+
+    it 'returns all records for Axis Mundi users' do
+      user = create(:user, :with_axis_mundi_role)
+      roles = Role.all.to_a
+      scope = described_class::Scope.new(user, Role.all).resolve
+
+      expect(scope).to match_array(roles)
+    end
+
+    it 'returns no records for regular users' do
+      user = create(:user)
+      scope = described_class::Scope.new(user, Role.all).resolve
+
+      expect(scope).to be_empty
+    end
+
+    it 'returns no records for a nil user' do
+      scope = described_class::Scope.new(nil, Role.all).resolve
+
+      expect(scope).to be_empty
+    end
+  end
+end