1 files changed, 16 insertions, 0 deletions
diff --git a/spec/ruby/core/fixnum/uminus_spec.rb b/spec/ruby/core/fixnum/uminus_spec.rb
new file mode 100644
index 0000000000..ac676400d1
--- /dev/null
+++ b/spec/ruby/core/fixnum/uminus_spec.rb
@@ -0,0 +1,16 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Fixnum#-@" do
+  it "returns self as a negative value" do
+    2.send(:-@).should == -2
+    -2.should == -2
+    -268435455.should == -268435455
+    (--5).should == 5
+    -8.send(:-@).should == 8
+  end
+
+  it "negates self at Fixnum/Bignum boundaries" do
+    fixnum_max.send(:-@).should == (0 - fixnum_max)
+    fixnum_min.send(:-@).should == (0 - fixnum_min)
+  end
+end