1 files changed, 19 insertions, 0 deletions
diff --git a/spec/ruby/core/bignum/odd_spec.rb b/spec/ruby/core/bignum/odd_spec.rb
new file mode 100644
index 0000000000..9d4c1191f6
--- /dev/null
+++ b/spec/ruby/core/bignum/odd_spec.rb
@@ -0,0 +1,19 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Bignum#odd?" do
+  it "returns true if self is odd and positive" do
+    (987279**19).odd?.should be_true
+  end
+
+  it "returns true if self is odd and negative" do
+    (-9873389**97).odd?.should be_true
+  end
+
+  it "returns false if self is even and positive" do
+    (10000000**10).odd?.should be_false
+  end
+
+  it "returns false if self is even and negative" do
+    (-1000000**100).odd?.should be_false
+  end
+end