diff options
Diffstat (limited to 'spec/ruby/core/complex/exponent_spec.rb')
-rw-r--r-- | spec/ruby/core/complex/exponent_spec.rb | 60 |
1 files changed, 58 insertions, 2 deletions
diff --git a/spec/ruby/core/complex/exponent_spec.rb b/spec/ruby/core/complex/exponent_spec.rb index 47381d7e43..bf07c90038 100644 --- a/spec/ruby/core/complex/exponent_spec.rb +++ b/spec/ruby/core/complex/exponent_spec.rb @@ -1,5 +1,61 @@ -require_relative '../../shared/complex/exponent' +require_relative '../../spec_helper' describe "Complex#**" do - it_behaves_like :complex_exponent, :** + describe "with Fixnum 0" do + it "returns Complex(1)" do + (Complex(3, 4) ** 0).should eql(Complex(1)) + end + end + + describe "with Float 0.0" do + it "returns Complex(1.0, 0.0)" do + (Complex(3, 4) ** 0.0).should eql(Complex(1.0, 0.0)) + end + end + + describe "with Complex" do + it "returns self raised to the given power" do + (Complex(2, 1) ** Complex(2, 1)).should be_close(Complex(-0.504824688978319, 3.10414407699553), TOLERANCE) + (Complex(2, 1) ** Complex(3, 4)).should be_close(Complex(-0.179174656916581, -1.74071656397662), TOLERANCE) + + (Complex(2, 1) ** Complex(-2, -1)).should be_close(Complex(-0.051041070450869, -0.313849223270419), TOLERANCE) + (Complex(-2, -1) ** Complex(2, 1)).should be_close(Complex(-11.6819929610857, 71.8320439736158), TOLERANCE) + end + end + + describe "with Integer" do + it "returns self raised to the given power" do + (Complex(2, 1) ** 2).should == Complex(3, 4) + (Complex(3, 4) ** 2).should == Complex(-7, 24) + (Complex(3, 4) ** -2).should be_close(Complex(-0.0112, -0.0384), TOLERANCE) + + + (Complex(2, 1) ** 2.5).should be_close(Complex(2.99179707178602, 6.85206901006896), TOLERANCE) + (Complex(3, 4) ** 2.5).should be_close(Complex(-38.0, 41.0), TOLERANCE) + (Complex(3, 4) ** -2.5).should be_close(Complex(-0.01216, -0.01312), TOLERANCE) + + (Complex(1) ** 1).should == Complex(1) + + # NOTE: Takes way too long... + #(Complex(2, 1) ** bignum_value) + end + end + + describe "with Rational" do + it "returns self raised to the given power" do + (Complex(2, 1) ** Rational(3, 4)).should be_close(Complex(1.71913265276568, 0.623124744394697), TOLERANCE) + (Complex(2, 1) ** Rational(4, 3)).should be_close(Complex(2.3828547125173, 1.69466313833091), TOLERANCE) + (Complex(2, 1) ** Rational(-4, 3)).should be_close(Complex(0.278700377879388, -0.198209003071003), TOLERANCE) + end + end + + describe "with Object" do + it "tries to coerce self into other" do + value = Complex(3, 9) + + obj = mock("Object") + obj.should_receive(:coerce).with(value).and_return([2, 5]) + (value ** obj).should == 2 ** 5 + end + end end |