2 files changed, 19 insertions, 0 deletions
diff --git a/activemodel/test/cases/deprecated_mass_assignment_security_test.rb b/activemodel/test/cases/deprecated_mass_assignment_security_test.rb
new file mode 100644
index 0000000000..c1fe8822cd
--- /dev/null
+++ b/activemodel/test/cases/deprecated_mass_assignment_security_test.rb
@@ -0,0 +1,16 @@
+require 'cases/helper'
+require 'models/project'
+
+class DeprecatedMassAssignmentSecurityTest < ActiveModel::TestCase
+  def test_attr_accessible_raise_error
+    assert_raise RuntimeError, /protected_attributes/ do
+      Project.attr_accessible :username
+    end
+  end
+
+  def test_attr_protected_raise_error
+    assert_raise RuntimeError, /protected_attributes/ do
+      Project.attr_protected :username
+    end
+  end
+end
diff --git a/activemodel/test/models/project.rb b/activemodel/test/models/project.rb
new file mode 100644
index 0000000000..581b6dc0b3
--- /dev/null
+++ b/activemodel/test/models/project.rb
@@ -0,0 +1,3 @@
+class Project
+  include ActiveModel::DeprecatedMassAssignmentSecurity
+end