diff options
Diffstat (limited to 'spec/ruby/core/complex/comparison_spec.rb')
-rw-r--r-- | spec/ruby/core/complex/comparison_spec.rb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/core/complex/comparison_spec.rb b/spec/ruby/core/complex/comparison_spec.rb new file mode 100644 index 0000000000..3a3142f234 --- /dev/null +++ b/spec/ruby/core/complex/comparison_spec.rb @@ -0,0 +1,25 @@ +require_relative '../../spec_helper' + +describe "Complex#<=>" do + it "returns nil if either self or argument has imaginary part" do + (Complex(5, 1) <=> Complex(2)).should be_nil + (Complex(1) <=> Complex(2, 1)).should be_nil + (5 <=> Complex(2, 1)).should be_nil + end + + it "returns nil if argument is not numeric" do + (Complex(5, 1) <=> "cmp").should be_nil + (Complex(1) <=> "cmp").should be_nil + (Complex(1) <=> Object.new).should be_nil + end + + it "returns 0, 1, or -1 if self and argument do not have imaginary part" do + (Complex(5) <=> Complex(2)).should == 1 + (Complex(2) <=> Complex(3)).should == -1 + (Complex(2) <=> Complex(2)).should == 0 + + (Complex(5) <=> 2).should == 1 + (Complex(2) <=> 3).should == -1 + (Complex(2) <=> 2).should == 0 + end +end |