diff options
Diffstat (limited to 'spec/rubyspec/library/bigdecimal/nan_spec.rb')
| -rw-r--r-- | spec/rubyspec/library/bigdecimal/nan_spec.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/spec/rubyspec/library/bigdecimal/nan_spec.rb b/spec/rubyspec/library/bigdecimal/nan_spec.rb new file mode 100644 index 0000000000..5c291629b3 --- /dev/null +++ b/spec/rubyspec/library/bigdecimal/nan_spec.rb @@ -0,0 +1,23 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'bigdecimal' + +describe "BigDecimal#nan?" do + + it "returns true if self is not a number" do + BigDecimal("NaN").nan?.should == true + end + + it "returns false if self is not a NaN" do + BigDecimal("Infinity").nan?.should == false + BigDecimal("-Infinity").nan?.should == false + BigDecimal("0").nan?.should == false + BigDecimal("+0").nan?.should == false + BigDecimal("-0").nan?.should == false + BigDecimal("2E40001").nan?.should == false + BigDecimal("3E-20001").nan?.should == false + BigDecimal("0E-200000000").nan?.should == false + BigDecimal("0E200000000000").nan?.should == false + BigDecimal("0.000000000000000000000000").nan?.should == false + end + +end |