1 files changed, 42 insertions, 0 deletions
diff --git a/spec/rubyspec/core/fixnum/shared/modulo.rb b/spec/rubyspec/core/fixnum/shared/modulo.rb
new file mode 100644
index 0000000000..a2f9a2691d
--- /dev/null
+++ b/spec/rubyspec/core/fixnum/shared/modulo.rb
@@ -0,0 +1,42 @@
+describe :fixnum_modulo, shared: true do
+  it "returns the modulus obtained from dividing self by the given argument" do
+    13.send(@method, 4).should == 1
+    4.send(@method, 13).should == 4
+
+    13.send(@method, 4.0).should == 1
+    4.send(@method, 13.0).should == 4
+
+    (-200).send(@method, 256).should == 56
+    (-1000).send(@method, 512).should == 24
+
+    (-200).send(@method, -256).should == -200
+    (-1000).send(@method, -512).should == -488
+
+    (200).send(@method, -256).should == -56
+    (1000).send(@method, -512).should == -24
+
+    1.send(@method, 2.0).should == 1.0
+    200.send(@method, bignum_value).should == 200
+  end
+
+  it "raises a ZeroDivisionError when the given argument is 0" do
+    lambda { 13.send(@method, 0)  }.should raise_error(ZeroDivisionError)
+    lambda { 0.send(@method, 0)   }.should raise_error(ZeroDivisionError)
+    lambda { -10.send(@method, 0) }.should raise_error(ZeroDivisionError)
+  end
+
+  it "raises a ZeroDivisionError when the given argument is 0 and a Float" do
+    lambda { 0.send(@method, 0.0) }.should raise_error(ZeroDivisionError)
+    lambda { 10.send(@method, 0.0) }.should raise_error(ZeroDivisionError)
+    lambda { -10.send(@method, 0.0) }.should raise_error(ZeroDivisionError)
+  end
+
+  it "raises a TypeError when given a non-Integer" do
+    lambda {
+      (obj = mock('10')).should_receive(:to_int).any_number_of_times.and_return(10)
+      13.send(@method, obj)
+    }.should raise_error(TypeError)
+    lambda { 13.send(@method, "10")    }.should raise_error(TypeError)
+    lambda { 13.send(@method, :symbol) }.should raise_error(TypeError)
+  end
+end