diff options
Diffstat (limited to 'spec/rubyspec/core/float/infinite_spec.rb')
-rw-r--r-- | spec/rubyspec/core/float/infinite_spec.rb | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/spec/rubyspec/core/float/infinite_spec.rb b/spec/rubyspec/core/float/infinite_spec.rb new file mode 100644 index 0000000000..4e31effab7 --- /dev/null +++ b/spec/rubyspec/core/float/infinite_spec.rb @@ -0,0 +1,19 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Float#infinite?" do + it "returns nil for finite values" do + 1.0.infinite?.should == nil + end + + it "returns 1 for positive infinity" do + infinity_value.infinite?.should == 1 + end + + it "returns -1 for negative infinity" do + (-infinity_value).infinite?.should == -1 + end + + it "returns nil for NaN" do + nan_value.infinite?.should == nil + end +end |