Add more test coverage for admin policies

app/policies/admin/nil_class_policy.rb

@@ -0,0 +1,9 @@
+class Admin::NilClassPolicy < Admin::ApplicationPolicy
+  class Scope < Admin::ApplicationPolicy::Scope
+    def resolve
+      raise Pundit::NotDefinedError, "Cannot scope NilClass"
+    end
+  end
+
+  # fallback to parent policy which rejects all actions
+end

test/policies/admin/api_key_policy_test.rb

@@ -14,6 +14,12 @@ def test_scope
     ).to_a
   end
 
+  def test_associations
+    assert_association @admin, @api_key, :api_key_rubygem_scope, Admin::ApiKeyPolicy
+    assert_association @admin, @api_key, :ownership, Admin::OwnershipPolicy
+    assert_association @admin, @api_key, :oidc_id_token, Admin::OIDC::IdTokenPolicy
+  end
+
   def test_avo_index
     refute_authorizes @admin, ApiKey, :avo_index?
     refute_authorizes @non_admin, ApiKey, :avo_index?

test/policies/admin/application_policy_test.rb

@@ -0,0 +1,27 @@
+require "test_helper"
+
+class Admin::ApplicationPolicyTest < AdminPolicyTestCase
+  should "onle inherit from Admin::ApplicationPolicy in Admin:: namespace" do
+    Admin.constants.each do |const|
+      next if const == :ApplicationPolicy
+      next unless const.to_s.end_with?("Policy")
+
+      klass = Admin.const_get(const)
+
+      assert_operator klass, :<, Admin::ApplicationPolicy, "#{const} does not inherit from Admin::ApplicationPolicy"
+      assert_operator klass::Scope, :<, Admin::ApplicationPolicy::Scope, "#{const}::Scope does not inherit from Admin::ApplicationPolicy::Scope"
+    end
+  end
+
+  should "not authorize any avo action" do
+    refute_authorizes nil, nil, :avo_index?
+    refute_authorizes nil, nil, :avo_show?
+    refute_authorizes nil, nil, :avo_create?
+    refute_authorizes nil, nil, :avo_new?
+    refute_authorizes nil, nil, :avo_update?
+    refute_authorizes nil, nil, :avo_edit?
+    refute_authorizes nil, nil, :avo_destroy?
+    refute_authorizes nil, nil, :act_on?
+    refute_authorizes nil, nil, :avo_search?
+  end
+end

test/policies/admin/deletion_policy_test.rb

@@ -8,6 +8,10 @@ class Admin::DeletionPolicyTest < AdminPolicyTestCase
     @non_admin = create(:admin_github_user)
   end
 
+  def test_associations
+    assert_association @admin, @deletion, :version, Admin::VersionPolicy
+  end
+
   def test_scope
     assert_equal [@deletion], policy_scope!(
       @admin,

test/policies/admin/geoip_info_policy_test.rb

@@ -8,6 +8,10 @@ class Admin::GeoipInfoPolicyTest < AdminPolicyTestCase
     @non_admin = create(:admin_github_user)
   end
 
+  def test_associations
+    assert_association @admin, @geoip_info, :ip_addresses, Admin::IpAddressPolicy
+  end
+
   def test_scope
     assert_equal [@geoip_info], policy_scope!(
       @admin,

test/policies/admin/ip_address_policy_test.rb

@@ -7,6 +7,12 @@ class Admin::IpAddressPolicyTest < AdminPolicyTestCase
     @non_admin = create(:admin_github_user)
   end
 
+  def test_associations
+    assert_association @admin, @ip_address, :user_events, Admin::Events::UserEventPolicy
+    assert_association @admin, @ip_address, :rubygem_events, Admin::Events::RubygemEventPolicy
+    assert_association @admin, @ip_address, :organization_events, Admin::Events::OrganizationEventPolicy
+  end
+
   def test_scope
     assert_equal [@ip_address], policy_scope!(
       @admin,

test/policies/admin/nil_class_policy_test.rb

@@ -0,0 +1,32 @@
+require "test_helper"
+
+class Admin::NilClassPolicyTest < AdminPolicyTestCase
+  def policy!(api_key)
+    Pundit.policy!(api_key, [:api, nil])
+  end
+
+  should "inherit from Admin::ApplicationPolicy" do
+    assert_operator Admin::NilClassPolicy, :<, Admin::ApplicationPolicy
+    assert_operator Admin::NilClassPolicy::Scope, :<, Admin::ApplicationPolicy::Scope
+  end
+
+  context "::Scope.resolve" do
+    should "raise" do
+      assert_raises Pundit::NotDefinedError do
+        Admin::NilClassPolicy::Scope.new(nil, nil).resolve
+      end
+    end
+  end
+
+  should "not authorize any avo action" do
+    refute_authorizes nil, nil, :avo_index?
+    refute_authorizes nil, nil, :avo_show?
+    refute_authorizes nil, nil, :avo_create?
+    refute_authorizes nil, nil, :avo_new?
+    refute_authorizes nil, nil, :avo_update?
+    refute_authorizes nil, nil, :avo_edit?
+    refute_authorizes nil, nil, :avo_destroy?
+    refute_authorizes nil, nil, :act_on?
+    refute_authorizes nil, nil, :avo_search?
+  end
+end

test/policies/admin/rubygem_policy_test.rb

@@ -12,6 +12,11 @@ def test_scope
       @admin,
       Rubygem
     ).to_a
+
+    assert_empty policy_scope!(
+      @non_admin,
+      Rubygem
+    ).to_a
   end
 
   def test_avo_index

test/policies/admin/version_policy_test.rb

@@ -0,0 +1,38 @@
+require "test_helper"
+
+class Admin::VersionPolicyTest < AdminPolicyTestCase
+  setup do
+    @admin = FactoryBot.create(:admin_github_user, :is_admin)
+    @non_admin = FactoryBot.create(:admin_github_user)
+    @version = FactoryBot.create(:version, :yanked)
+  end
+
+  def test_scope
+    assert_equal [@version], policy_scope!(
+      @admin,
+      Version
+    ).to_a
+    assert_empty policy_scope!(
+      @non_admin,
+      Version
+    ).to_a
+  end
+
+  def test_avo_index
+    assert_authorizes @admin, Version, :avo_index?
+
+    refute_authorizes @non_admin, Version, :avo_index?
+  end
+
+  def test_avo_show
+    assert_authorizes @admin, @version, :avo_show?
+
+    refute_authorizes @non_admin, @version, :avo_show?
+  end
+
+  def test_act_on
+    assert_authorizes @admin, @version, :act_on?
+
+    refute_authorizes @non_admin, @version, :act_on?
+  end
+end

test/test_helper.rb

@@ -286,6 +286,12 @@ def refute_authorizes(user, record, action)
     end
   end
 
+  def assert_association(user, record, association, _policy_class)
+    %w[create attach detach destroy edit].each do |action|
+      refute_authorizes(user, record, :"#{action}_#{association}?")
+    end
+  end
+
   def policy_class
     nil
   end