1 files changed, 12 insertions, 3 deletions
diff --git a/spec/ruby/library/bigdecimal/modulo_spec.rb b/spec/ruby/library/bigdecimal/modulo_spec.rb
index 035d31bd98..d6b4f91b6d 100644
--- a/spec/ruby/library/bigdecimal/modulo_spec.rb
+++ b/spec/ruby/library/bigdecimal/modulo_spec.rb
@@ -1,12 +1,21 @@
 require_relative '../../spec_helper'
 require_relative 'shared/modulo'
+require 'bigdecimal'
 
 describe "BigDecimal#%" do
   it_behaves_like :bigdecimal_modulo, :%
-  it_behaves_like :bigdecimal_modulo_zerodivisionerror, :%
+
+  it "raises ZeroDivisionError if other is zero" do
+    bd5667 = BigDecimal("5667.19")
+
+    -> { bd5667 % 0 }.should.raise(ZeroDivisionError)
+    -> { bd5667 % BigDecimal("0") }.should.raise(ZeroDivisionError)
+    -> { @zero % @zero }.should.raise(ZeroDivisionError)
+  end
 end
 
 describe "BigDecimal#modulo" do
-  it_behaves_like :bigdecimal_modulo, :modulo
-  it_behaves_like :bigdecimal_modulo_zerodivisionerror, :modulo
+  it "is an alias of BigDecimal#%" do
+    BigDecimal.instance_method(:modulo).should == BigDecimal.instance_method(:%)
+  end
 end