diff options
Diffstat (limited to 'spec/ruby/core/float/nan_spec.rb')
| -rw-r--r-- | spec/ruby/core/float/nan_spec.rb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/spec/ruby/core/float/nan_spec.rb b/spec/ruby/core/float/nan_spec.rb new file mode 100644 index 0000000000..95a61d8872 --- /dev/null +++ b/spec/ruby/core/float/nan_spec.rb @@ -0,0 +1,9 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Float#nan?" do + it "returns true if self is not a valid IEEE floating-point number" do + 0.0.nan?.should == false + -1.5.nan?.should == false + nan_value.nan?.should == true + end +end |