diff options
Diffstat (limited to 'spec/ruby/core/complex/to_s_spec.rb')
-rw-r--r-- | spec/ruby/core/complex/to_s_spec.rb | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/spec/ruby/core/complex/to_s_spec.rb b/spec/ruby/core/complex/to_s_spec.rb index edb1b2c493..989a7ae0b7 100644 --- a/spec/ruby/core/complex/to_s_spec.rb +++ b/spec/ruby/core/complex/to_s_spec.rb @@ -1,5 +1,44 @@ -require_relative '../../shared/complex/to_s' +require_relative '../../spec_helper' describe "Complex#to_s" do - it_behaves_like :complex_to_s, :to_s + describe "when self's real component is 0" do + it "returns both the real and imaginary component even when the real is 0" do + Complex(0, 5).to_s.should == "0+5i" + Complex(0, -3.2).to_s.should == "0-3.2i" + end + end + + it "returns self as String" do + Complex(1, 5).to_s.should == "1+5i" + Complex(-2.5, 1.5).to_s.should == "-2.5+1.5i" + + Complex(1, -5).to_s.should == "1-5i" + Complex(-2.5, -1.5).to_s.should == "-2.5-1.5i" + + # Guard against the Mathn library + guard -> { !defined?(Math.rsqrt) } do + Complex(1, 0).to_s.should == "1+0i" + Complex(1, -0).to_s.should == "1+0i" + end + end + + it "returns 1+0.0i for Complex(1, 0.0)" do + Complex(1, 0.0).to_s.should == "1+0.0i" + end + + it "returns 1-0.0i for Complex(1, -0.0)" do + Complex(1, -0.0).to_s.should == "1-0.0i" + end + + it "returns 1+Infinity*i for Complex(1, Infinity)" do + Complex(1, infinity_value).to_s.should == "1+Infinity*i" + end + + it "returns 1-Infinity*i for Complex(1, -Infinity)" do + Complex(1, -infinity_value).to_s.should == "1-Infinity*i" + end + + it "returns 1+NaN*i for Complex(1, NaN)" do + Complex(1, nan_value).to_s.should == "1+NaN*i" + end end |