1 files changed, 41 insertions, 0 deletions
diff --git a/spec/ruby/core/numeric/negative_spec.rb b/spec/ruby/core/numeric/negative_spec.rb
new file mode 100644
index 0000000000..9c6f95fd87
--- /dev/null
+++ b/spec/ruby/core/numeric/negative_spec.rb
@@ -0,0 +1,41 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Numeric#negative?" do
+  describe "on positive numbers" do
+    it "returns false" do
+      1.negative?.should be_false
+      0.1.negative?.should be_false
+    end
+  end
+
+  describe "on zero" do
+    it "returns false" do
+      0.negative?.should be_false
+      0.0.negative?.should be_false
+    end
+  end
+
+  describe "on negative numbers" do
+    it "returns true" do
+      -1.negative?.should be_true
+      -0.1.negative?.should be_true
+    end
+  end
+end
+
+describe "Numeric#negative?" do
+  before(:each) do
+    @obj = NumericSpecs::Subclass.new
+  end
+
+  it "returns true if self is less than 0" do
+    @obj.should_receive(:<).with(0).and_return(true)
+    @obj.should.negative?
+  end
+
+  it "returns false if self is greater than 0" do
+    @obj.should_receive(:<).with(0).and_return(false)
+    @obj.should_not.negative?
+  end
+end