Dont swallow errors when bad alias_method

1 files changed, 20 insertions, 2 deletions

diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb
index 8f83cf7cb4..4c0b0c868a 100644
--- a/activerecord/test/cases/base_test.rb
+++ b/activerecord/test/cases/base_test.rb
@@ -1347,14 +1347,32 @@ class BasicsTest < ActiveRecord::TestCase
   end
 
   def test_compute_type_no_method_error
-    ActiveSupport::Dependencies.stubs(:constantize).raises(NoMethodError)
+    ActiveSupport::Dependencies.stubs(:safe_constantize).raises(NoMethodError)
     assert_raises NoMethodError do
       ActiveRecord::Base.send :compute_type, 'InvalidModel'
     end
   end
 
+  def test_compute_type_on_undefined_method
+    error = nil
+    begin
+      Class.new(Author) do
+        alias_method :foo, :bar
+      end
+    rescue => e
+      error = e
+    end
+
+    ActiveSupport::Dependencies.stubs(:safe_constantize).raises(e)
+
+    exception = assert_raises NameError do
+      ActiveRecord::Base.send :compute_type, 'InvalidModel'
+    end
+    assert_equal error.message, exception.message
+  end
+
   def test_compute_type_argument_error
-    ActiveSupport::Dependencies.stubs(:constantize).raises(ArgumentError)
+    ActiveSupport::Dependencies.stubs(:safe_constantize).raises(ArgumentError)
     assert_raises ArgumentError do
       ActiveRecord::Base.send :compute_type, 'InvalidModel'
     end