diff options
Diffstat (limited to 'spec/ruby/core/complex')
43 files changed, 948 insertions, 130 deletions
diff --git a/spec/ruby/core/complex/abs2_spec.rb b/spec/ruby/core/complex/abs2_spec.rb index debfade075..3e5c5fd225 100644 --- a/spec/ruby/core/complex/abs2_spec.rb +++ b/spec/ruby/core/complex/abs2_spec.rb @@ -1,5 +1,9 @@ -require File.expand_path('../../../shared/complex/abs2', __FILE__) +require_relative '../../spec_helper' describe "Complex#abs2" do - it_behaves_like(:complex_abs2, :abs2) + it "returns the sum of the squares of the real and imaginary parts" do + Complex(1, -2).abs2.should == 1 + 4 + Complex(-0.1, 0.2).abs2.should be_close(0.01 + 0.04, TOLERANCE) + Complex(0).abs2.should == 0 + end end diff --git a/spec/ruby/core/complex/abs_spec.rb b/spec/ruby/core/complex/abs_spec.rb index a00d161ee9..ed5aebb11d 100644 --- a/spec/ruby/core/complex/abs_spec.rb +++ b/spec/ruby/core/complex/abs_spec.rb @@ -1,5 +1,12 @@ -require File.expand_path('../../../shared/complex/abs', __FILE__) +require_relative '../../spec_helper' describe "Complex#abs" do - it_behaves_like(:complex_abs, :abs) + it "returns the modulus: |a + bi| = sqrt((a ^ 2) + (b ^ 2))" do + Complex(0, 0).abs.should == 0 + Complex(3, 4).abs.should == 5 # well-known integer case + Complex(-3, 4).abs.should == 5 + Complex(1, -1).abs.should be_close(Math.sqrt(2), TOLERANCE) + Complex(6.5, 0).abs.should be_close(6.5, TOLERANCE) + Complex(0, -7.2).abs.should be_close(7.2, TOLERANCE) + end end diff --git a/spec/ruby/core/complex/angle_spec.rb b/spec/ruby/core/complex/angle_spec.rb index f0c46bfd03..7551214d2b 100644 --- a/spec/ruby/core/complex/angle_spec.rb +++ b/spec/ruby/core/complex/angle_spec.rb @@ -1,7 +1,7 @@ -require File.expand_path('../../../spec_helper', __FILE__) - -require File.expand_path('../../../shared/complex/arg', __FILE__) +require_relative '../../spec_helper' describe "Complex#angle" do - it_behaves_like(:complex_arg, :angle) + it "is an alias of Complex#arg" do + Complex.instance_method(:angle).should == Complex.instance_method(:arg) + end end diff --git a/spec/ruby/core/complex/arg_spec.rb b/spec/ruby/core/complex/arg_spec.rb index 48f8a94cf5..dd64102d77 100644 --- a/spec/ruby/core/complex/arg_spec.rb +++ b/spec/ruby/core/complex/arg_spec.rb @@ -1,7 +1,11 @@ -require File.expand_path('../../../spec_helper', __FILE__) - -require File.expand_path('../../../shared/complex/arg', __FILE__) +require_relative '../../spec_helper' describe "Complex#arg" do - it_behaves_like(:complex_arg, :arg) + it "returns the argument -- i.e., the angle from (1, 0) in the complex plane" do + two_pi = 2 * Math::PI + (Complex(1, 0).arg % two_pi).should be_close(0, TOLERANCE) + (Complex(0, 2).arg % two_pi).should be_close(Math::PI * 0.5, TOLERANCE) + (Complex(-100, 0).arg % two_pi).should be_close(Math::PI, TOLERANCE) + (Complex(0, -75.3).arg % two_pi).should be_close(Math::PI * 1.5, TOLERANCE) + end end diff --git a/spec/ruby/core/complex/coerce_spec.rb b/spec/ruby/core/complex/coerce_spec.rb index 7c01170fde..d4ea85a713 100644 --- a/spec/ruby/core/complex/coerce_spec.rb +++ b/spec/ruby/core/complex/coerce_spec.rb @@ -1,5 +1,70 @@ -require File.expand_path('../../../shared/complex/coerce', __FILE__) +require_relative '../../spec_helper' describe "Complex#coerce" do - it_behaves_like(:complex_coerce, :coerce) + before :each do + @one = Complex(1) + end + + it "returns an array containing other and self as Complex when other is an Integer" do + result = @one.coerce(2) + result.should == [2, 1] + result.first.should.is_a?(Complex) + result.last.should.is_a?(Complex) + end + + it "returns an array containing other and self as Complex when other is a Float" do + result = @one.coerce(20.5) + result.should == [20.5, 1] + result.first.should.is_a?(Complex) + result.last.should.is_a?(Complex) + end + + it "returns an array containing other and self as Complex when other is a Bignum" do + result = @one.coerce(4294967296) + result.should == [4294967296, 1] + result.first.should.is_a?(Complex) + result.last.should.is_a?(Complex) + end + + it "returns an array containing other and self as Complex when other is a Rational" do + result = @one.coerce(Rational(5,6)) + result.should == [Rational(5,6), 1] + result.first.should.is_a?(Complex) + result.last.should.is_a?(Complex) + end + + it "returns an array containing other and self when other is a Complex" do + other = Complex(2) + result = @one.coerce(other) + result.should == [other, @one] + result.first.should.equal?(other) + result.last.should.equal?(@one) + end + + it "returns an array containing other as Complex and self when other is a Numeric which responds to #real? with true" do + other = mock_numeric('other') + other.should_receive(:real?).any_number_of_times.and_return(true) + result = @one.coerce(other) + result.should == [other, @one] + result.first.should.eql?(Complex(other)) + result.last.should.equal?(@one) + end + + it "raises TypeError when other is a Numeric which responds to #real? with false" do + other = mock_numeric('other') + other.should_receive(:real?).any_number_of_times.and_return(false) + -> { @one.coerce(other) }.should.raise(TypeError) + end + + it "raises a TypeError when other is a String" do + -> { @one.coerce("20") }.should.raise(TypeError) + end + + it "raises a TypeError when other is nil" do + -> { @one.coerce(nil) }.should.raise(TypeError) + end + + it "raises a TypeError when other is false" do + -> { @one.coerce(false) }.should.raise(TypeError) + end end diff --git a/spec/ruby/core/complex/comparison_spec.rb b/spec/ruby/core/complex/comparison_spec.rb new file mode 100644 index 0000000000..3115f4e205 --- /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 == nil + (Complex(1) <=> Complex(2, 1)).should == nil + (5 <=> Complex(2, 1)).should == nil + end + + it "returns nil if argument is not numeric" do + (Complex(5, 1) <=> "cmp").should == nil + (Complex(1) <=> "cmp").should == nil + (Complex(1) <=> Object.new).should == 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 diff --git a/spec/ruby/core/complex/conj_spec.rb b/spec/ruby/core/complex/conj_spec.rb index ad2c885b3b..063c85faec 100644 --- a/spec/ruby/core/complex/conj_spec.rb +++ b/spec/ruby/core/complex/conj_spec.rb @@ -1,6 +1,7 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../../../shared/complex/conjugate', __FILE__) +require_relative '../../spec_helper' describe "Complex#conj" do - it_behaves_like(:complex_conjugate, :conj) + it "is an alias of Complex#conjugate" do + Complex.instance_method(:conj).should == Complex.instance_method(:conjugate) + end end diff --git a/spec/ruby/core/complex/conjugate_spec.rb b/spec/ruby/core/complex/conjugate_spec.rb index 7fc2ddb430..256fe4b3be 100644 --- a/spec/ruby/core/complex/conjugate_spec.rb +++ b/spec/ruby/core/complex/conjugate_spec.rb @@ -1,6 +1,10 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../../../shared/complex/conjugate', __FILE__) +require_relative '../../spec_helper' describe "Complex#conjugate" do - it_behaves_like(:complex_conjugate, :conjugate) + it "returns the complex conjugate: conj a + bi = a - bi" do + Complex(3, 5).conjugate.should == Complex(3, -5) + Complex(3, -5).conjugate.should == Complex(3, 5) + Complex(-3.0, 5.2).conjugate.should be_close(Complex(-3.0, -5.2), TOLERANCE) + Complex(3.0, -5.2).conjugate.should be_close(Complex(3.0, 5.2), TOLERANCE) + end end diff --git a/spec/ruby/core/complex/constants_spec.rb b/spec/ruby/core/complex/constants_spec.rb index a8fcebbd31..200e97731a 100644 --- a/spec/ruby/core/complex/constants_spec.rb +++ b/spec/ruby/core/complex/constants_spec.rb @@ -1,5 +1,7 @@ -require File.expand_path('../../../shared/complex/constants', __FILE__) +require_relative '../../spec_helper' describe "Complex::I" do - it_behaves_like :complex_I, :I + it "is Complex(0, 1)" do + Complex::I.should.eql?(Complex(0, 1)) + end end diff --git a/spec/ruby/core/complex/denominator_spec.rb b/spec/ruby/core/complex/denominator_spec.rb index 2568967968..c1a2003820 100644 --- a/spec/ruby/core/complex/denominator_spec.rb +++ b/spec/ruby/core/complex/denominator_spec.rb @@ -1,5 +1,13 @@ -require File.expand_path('../../../shared/complex/denominator', __FILE__) +require_relative '../../spec_helper' describe "Complex#denominator" do - it_behaves_like(:complex_denominator, :denominator) + it "returns the least common multiple denominator of the real and imaginary parts" do + Complex(3, 4).denominator.should == 1 + Complex(3, bignum_value).denominator.should == 1 + + Complex(3, Rational(3,4)).denominator.should == 4 + + Complex(Rational(4,8), Rational(3,4)).denominator.should == 4 + Complex(Rational(3,8), Rational(3,4)).denominator.should == 8 + end end diff --git a/spec/ruby/core/complex/divide_spec.rb b/spec/ruby/core/complex/divide_spec.rb index 71614c76e1..d5b4aa3885 100644 --- a/spec/ruby/core/complex/divide_spec.rb +++ b/spec/ruby/core/complex/divide_spec.rb @@ -1,5 +1,84 @@ -require File.expand_path('../../../shared/complex/divide', __FILE__) +require_relative '../../spec_helper' describe "Complex#/" do - it_behaves_like :complex_divide, :/ + describe "with Complex" do + it "divides according to the usual rule for complex numbers" do + a = Complex((1 * 10) - (2 * 20), (1 * 20) + (2 * 10)) + b = Complex(1, 2) + (a / b).should == Complex(10, 20) + + c = Complex((1.5 * 100.2) - (2.1 * -30.3), (1.5 * -30.3) + (2.1 * 100.2)) + d = Complex(1.5, 2.1) + # remember the floating-point arithmetic + (c / d).should be_close(Complex(100.2, -30.3), TOLERANCE) + end + end + + describe "with Fixnum" do + it "divides both parts of the Complex number" do + (Complex(20, 40) / 2).should == Complex(10, 20) + (Complex(30, 30) / 10).should == Complex(3, 3) + end + + it "raises a ZeroDivisionError when given zero" do + -> { Complex(20, 40) / 0 }.should.raise(ZeroDivisionError) + end + + it "produces Rational parts" do + (Complex(5, 9) / 2).should.eql?(Complex(Rational(5,2), Rational(9,2))) + end + end + + describe "with Bignum" do + it "divides both parts of the Complex number" do + (Complex(20, 40) / 2).should == Complex(10, 20) + (Complex(15, 16) / 2.0).should be_close(Complex(7.5, 8), TOLERANCE) + end + end + + describe "with Float" do + it "divides both parts of the Complex number" do + (Complex(3, 9) / 1.5).should == Complex(2, 6) + (Complex(15, 16) / 2.0).should be_close(Complex(7.5, 8), TOLERANCE) + end + + it "returns Complex(Infinity, Infinity) when given zero" do + (Complex(20, 40) / 0.0).real.infinite?.should == 1 + (Complex(20, 40) / 0.0).imag.infinite?.should == 1 + (Complex(-20, 40) / 0.0).real.infinite?.should == -1 + (Complex(-20, 40) / 0.0).imag.infinite?.should == 1 + 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([4, 2]) + (value / obj).should == 2 + end + end + + describe "with a Numeric which responds to #real? with true" do + it "returns Complex(real.quo(other), imag.quo(other))" do + other = mock_numeric('other') + real = mock_numeric('real') + imag = mock_numeric('imag') + other.should_receive(:real?).and_return(true) + real.should_receive(:quo).with(other).and_return(1) + imag.should_receive(:quo).with(other).and_return(2) + (Complex(real, imag) / other).should == Complex(1, 2) + end + end + + describe "with a Numeric which responds to #real? with false" do + it "coerces the passed argument to Complex and divides the resulting elements" do + complex = Complex(3, 0) + other = mock_numeric('other') + other.should_receive(:real?).any_number_of_times.and_return(false) + other.should_receive(:coerce).with(complex).and_return([5, 2]) + (complex / other).should.eql?(Rational(5, 2)) + end + end end diff --git a/spec/ruby/core/complex/eql_spec.rb b/spec/ruby/core/complex/eql_spec.rb index c8e432029f..2082a22feb 100644 --- a/spec/ruby/core/complex/eql_spec.rb +++ b/spec/ruby/core/complex/eql_spec.rb @@ -1,24 +1,24 @@ -require File.expand_path('../../../spec_helper', __FILE__) +require_relative '../../spec_helper' describe "Complex#eql?" do it "returns false if other is not Complex" do - Complex(1).eql?(1).should be_false + Complex(1).eql?(1).should == false end it "returns true when the respective parts are of the same classes and self == other" do - Complex(1, 2).eql?(Complex(1, 2)).should be_true + Complex(1, 2).eql?(Complex(1, 2)).should == true end it "returns false when the real parts are of different classes" do - Complex(1).eql?(Complex(1.0)).should be_false + Complex(1).eql?(Complex(1.0)).should == false end it "returns false when the imaginary parts are of different classes" do - Complex(1, 2).eql?(Complex(1, 2.0)).should be_false + Complex(1, 2).eql?(Complex(1, 2.0)).should == false end it "returns false when self == other is false" do - Complex(1, 2).eql?(Complex(2, 3)).should be_false + Complex(1, 2).eql?(Complex(2, 3)).should == false end it "does NOT send #eql? to real or imaginary parts" do @@ -26,6 +26,6 @@ describe "Complex#eql?" do imag = mock_numeric('imag') real.should_not_receive(:eql?) imag.should_not_receive(:eql?) - Complex(real, imag).eql?(Complex(real, imag)).should be_true + Complex(real, imag).eql?(Complex(real, imag)).should == true end end diff --git a/spec/ruby/core/complex/equal_value_spec.rb b/spec/ruby/core/complex/equal_value_spec.rb index b3d93911bd..b3562ff3fb 100644 --- a/spec/ruby/core/complex/equal_value_spec.rb +++ b/spec/ruby/core/complex/equal_value_spec.rb @@ -1,5 +1,93 @@ -require File.expand_path('../../../shared/complex/equal_value', __FILE__) +require_relative '../../spec_helper' describe "Complex#==" do - it_behaves_like :complex_equal_value, :== + describe "with Complex" do + it "returns true when self and other have numerical equality" do + Complex(1, 2).should == Complex(1, 2) + Complex(3, 9).should == Complex(3, 9) + Complex(-3, -9).should == Complex(-3, -9) + + Complex(1, 2).should_not == Complex(3, 4) + Complex(3, 9).should_not == Complex(9, 3) + + Complex(1.0, 2.0).should == Complex(1, 2) + Complex(3.0, 9.0).should_not == Complex(9.0, 3.0) + + Complex(1.5, 2.5).should == Complex(1.5, 2.5) + Complex(1.5, 2.5).should == Complex(1.5, 2.5) + Complex(-1.5, 2.5).should == Complex(-1.5, 2.5) + + Complex(1.5, 2.5).should_not == Complex(2.5, 1.5) + Complex(3.75, 2.5).should_not == Complex(1.5, 2.5) + + Complex(bignum_value, 2.5).should == Complex(bignum_value, 2.5) + Complex(3.75, bignum_value).should_not == Complex(1.5, bignum_value) + + Complex(nan_value).should_not == Complex(nan_value) + end + end + + describe "with Numeric" do + it "returns true when self's imaginary part is 0 and the real part and other have numerical equality" do + Complex(3, 0).should == 3 + Complex(-3, 0).should == -3 + + Complex(3.5, 0).should == 3.5 + Complex(-3.5, 0).should == -3.5 + + Complex(bignum_value, 0).should == bignum_value + Complex(-bignum_value, 0).should == -bignum_value + + Complex(3.0, 0).should == 3 + Complex(-3.0, 0).should == -3 + + Complex(3, 0).should_not == 4 + Complex(-3, 0).should_not == -4 + + Complex(3.5, 0).should_not == -4.5 + Complex(-3.5, 0).should_not == 2.5 + + Complex(bignum_value, 0).should_not == bignum_value(10) + Complex(-bignum_value, 0).should_not == -bignum_value(20) + end + end + + describe "with Object" do + # Integer#== and Float#== only return booleans - Bug? + it "calls other#== with self" do + value = Complex(3, 0) + + obj = mock("Object") + obj.should_receive(:==).with(value).and_return(:expected) + + (value == obj).should_not == false + end + end + + describe "with a Numeric which responds to #real? with true" do + before do + @other = mock_numeric('other') + @other.should_receive(:real?).any_number_of_times.and_return(true) + end + + it "returns real == other when the imaginary part is zero" do + real = mock_numeric('real') + real.should_receive(:==).with(@other).and_return(true) + (Complex(real, 0) == @other).should == true + end + + it "returns false when the imaginary part is not zero" do + (Complex(3, 1) == @other).should == false + end + end + + describe "with a Numeric which responds to #real? with false" do + it "returns other == self" do + complex = Complex(3, 0) + other = mock_numeric('other') + other.should_receive(:real?).any_number_of_times.and_return(false) + other.should_receive(:==).with(complex).and_return(true) + (complex == other).should == true + end + end end diff --git a/spec/ruby/core/complex/exponent_spec.rb b/spec/ruby/core/complex/exponent_spec.rb index 62f61a2bf3..d0db0a40c2 100644 --- a/spec/ruby/core/complex/exponent_spec.rb +++ b/spec/ruby/core/complex/exponent_spec.rb @@ -1,5 +1,61 @@ -require File.expand_path('../../../shared/complex/exponent', __FILE__) +require_relative '../../spec_helper' describe "Complex#**" do - it_behaves_like :complex_exponent, :** + describe "with Integer 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 diff --git a/spec/ruby/core/complex/fdiv_spec.rb b/spec/ruby/core/complex/fdiv_spec.rb index 8211dfc9de..fdcbc6a95d 100644 --- a/spec/ruby/core/complex/fdiv_spec.rb +++ b/spec/ruby/core/complex/fdiv_spec.rb @@ -1,45 +1,45 @@ -require File.expand_path('../../../spec_helper', __FILE__) +require_relative '../../spec_helper' describe "Complex#fdiv" do it "accepts a numeric argument" do - lambda { Complex(20).fdiv(2) }.should_not raise_error(TypeError) - lambda { Complex(20).fdiv(2.0) }.should_not raise_error(TypeError) - lambda { Complex(20).fdiv(bignum_value) }.should_not raise_error(TypeError) + -> { Complex(20).fdiv(2) }.should_not.raise(TypeError) + -> { Complex(20).fdiv(2.0) }.should_not.raise(TypeError) + -> { Complex(20).fdiv(bignum_value) }.should_not.raise(TypeError) end it "accepts a negative numeric argument" do - lambda { Complex(20).fdiv(-2) }.should_not raise_error(TypeError) - lambda { Complex(20).fdiv(-2.0) }.should_not raise_error(TypeError) - lambda { Complex(20).fdiv(-bignum_value) }.should_not raise_error(TypeError) + -> { Complex(20).fdiv(-2) }.should_not.raise(TypeError) + -> { Complex(20).fdiv(-2.0) }.should_not.raise(TypeError) + -> { Complex(20).fdiv(-bignum_value) }.should_not.raise(TypeError) end it "raises a TypeError if passed a non-numeric argument" do - lambda { Complex(20).fdiv([]) }.should raise_error(TypeError) - lambda { Complex(20).fdiv(:sym) }.should raise_error(TypeError) - lambda { Complex(20).fdiv('s') }.should raise_error(TypeError) + -> { Complex(20).fdiv([]) }.should.raise(TypeError) + -> { Complex(20).fdiv(:sym) }.should.raise(TypeError) + -> { Complex(20).fdiv('s') }.should.raise(TypeError) end it "sets the real part to NaN if self's real part is NaN" do - Complex(nan_value).fdiv(2).real.nan?.should be_true + Complex(nan_value).fdiv(2).real.nan?.should == true end it "sets the imaginary part to NaN if self's imaginary part is NaN" do - Complex(2, nan_value).fdiv(2).imag.nan?.should be_true + Complex(2, nan_value).fdiv(2).imag.nan?.should == true end it "sets the real and imaginary part to NaN if self's real and imaginary parts are NaN" do - Complex(nan_value, nan_value).fdiv(2).imag.nan?.should be_true - Complex(nan_value, nan_value).fdiv(2).real.nan?.should be_true + Complex(nan_value, nan_value).fdiv(2).imag.nan?.should == true + Complex(nan_value, nan_value).fdiv(2).real.nan?.should == true end it "sets the real and imaginary part to NaN if self's real part and the argument are both NaN" do - Complex(nan_value, 2).fdiv(nan_value).imag.nan?.should be_true - Complex(nan_value, 2).fdiv(nan_value).real.nan?.should be_true + Complex(nan_value, 2).fdiv(nan_value).imag.nan?.should == true + Complex(nan_value, 2).fdiv(nan_value).real.nan?.should == true end it "sets the real and imaginary part to NaN if self's real part, self's imaginary part, and the argument are NaN" do - Complex(nan_value, nan_value).fdiv(nan_value).imag.nan?.should be_true - Complex(nan_value, nan_value).fdiv(nan_value).real.nan?.should be_true + Complex(nan_value, nan_value).fdiv(nan_value).imag.nan?.should == true + Complex(nan_value, nan_value).fdiv(nan_value).real.nan?.should == true end it "sets the real part to Infinity if self's real part is Infinity" do @@ -58,8 +58,8 @@ describe "Complex#fdiv" do end it "sets the real part to NaN and the imaginary part to NaN if self's imaginary part, self's real part, and the argument are Infinity" do - Complex(infinity_value, infinity_value).fdiv(infinity_value).real.nan?.should be_true - Complex(infinity_value, infinity_value).fdiv(infinity_value).imag.nan?.should be_true + Complex(infinity_value, infinity_value).fdiv(infinity_value).real.nan?.should == true + Complex(infinity_value, infinity_value).fdiv(infinity_value).imag.nan?.should == true end end @@ -71,7 +71,7 @@ describe "Complex#fdiv with no imaginary part" do it "returns a Complex number" do @numbers.each do |real| @numbers.each do |other| - Complex(real).fdiv(other).should be_an_instance_of(Complex) + Complex(real).fdiv(other).should.instance_of?(Complex) end end end @@ -103,7 +103,7 @@ describe "Complex#fdiv with an imaginary part" do @numbers.each_with_index do |other,idx| Complex( real,@numbers[idx == 0 ? -1 : idx-1] - ).fdiv(other).should be_an_instance_of(Complex) + ).fdiv(other).should.instance_of?(Complex) end end end diff --git a/spec/ruby/core/complex/finite_spec.rb b/spec/ruby/core/complex/finite_spec.rb new file mode 100644 index 0000000000..7d9f82404e --- /dev/null +++ b/spec/ruby/core/complex/finite_spec.rb @@ -0,0 +1,32 @@ +require_relative '../../spec_helper' + +describe "Complex#finite?" do + it "returns true if magnitude is finite" do + (1+1i).should.finite? + end + + it "returns false for positive infinity" do + value = Complex(Float::INFINITY, 42) + value.should_not.finite? + end + + it "returns false for positive complex with infinite imaginary" do + value = Complex(1, Float::INFINITY) + value.should_not.finite? + end + + it "returns false for negative infinity" do + value = -Complex(Float::INFINITY, 42) + value.should_not.finite? + end + + it "returns false for negative complex with infinite imaginary" do + value = -Complex(1, Float::INFINITY) + value.should_not.finite? + end + + it "returns false for NaN" do + value = Complex(Float::NAN, Float::NAN) + value.should_not.finite? + end +end diff --git a/spec/ruby/core/complex/hash_spec.rb b/spec/ruby/core/complex/hash_spec.rb index db4b3590df..cad283309d 100644 --- a/spec/ruby/core/complex/hash_spec.rb +++ b/spec/ruby/core/complex/hash_spec.rb @@ -1,6 +1,16 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../../../shared/complex/hash', __FILE__) +require_relative '../../spec_helper' describe "Complex#hash" do - it_behaves_like(:complex_hash, :hash) + it "is static" do + Complex(1).hash.should == Complex(1).hash + Complex(1, 0).hash.should == Complex(1).hash + Complex(1, 1).hash.should == Complex(1, 1).hash + end + + it "is different for different instances" do + Complex(1, 2).hash.should_not == Complex(1, 1).hash + Complex(2, 1).hash.should_not == Complex(1, 1).hash + + Complex(1, 2).hash.should_not == Complex(2, 1).hash + end end diff --git a/spec/ruby/core/complex/imag_spec.rb b/spec/ruby/core/complex/imag_spec.rb index 6aa8803f5d..225f168e78 100644 --- a/spec/ruby/core/complex/imag_spec.rb +++ b/spec/ruby/core/complex/imag_spec.rb @@ -1,5 +1,7 @@ -require File.expand_path('../../../shared/complex/image', __FILE__) +require_relative '../../spec_helper' describe "Complex#imag" do - it_behaves_like(:complex_image, :imag) + it "is an alias of Complex#imaginary" do + Complex.instance_method(:imag).should == Complex.instance_method(:imaginary) + end end diff --git a/spec/ruby/core/complex/imaginary_spec.rb b/spec/ruby/core/complex/imaginary_spec.rb index ecae19283b..ac9284e934 100644 --- a/spec/ruby/core/complex/imaginary_spec.rb +++ b/spec/ruby/core/complex/imaginary_spec.rb @@ -1,5 +1,10 @@ -require File.expand_path('../../../shared/complex/image', __FILE__) +require_relative '../../spec_helper' describe "Complex#imaginary" do - it_behaves_like :complex_image, :imaginary + it "returns the imaginary part of self" do + Complex(1, 0).imaginary.should == 0 + Complex(2, 1).imaginary.should == 1 + Complex(6.7, 8.9).imaginary.should == 8.9 + Complex(1, bignum_value).imaginary.should == bignum_value + end end diff --git a/spec/ruby/core/complex/infinite_spec.rb b/spec/ruby/core/complex/infinite_spec.rb new file mode 100644 index 0000000000..9e48860dee --- /dev/null +++ b/spec/ruby/core/complex/infinite_spec.rb @@ -0,0 +1,32 @@ +require_relative '../../spec_helper' + +describe "Complex#infinite?" do + it "returns nil if magnitude is finite" do + (1+1i).infinite?.should == nil + end + + it "returns 1 for positive infinity" do + value = Complex(Float::INFINITY, 42).infinite? + value.should == 1 + end + + it "returns 1 for positive complex with infinite imaginary" do + value = Complex(1, Float::INFINITY).infinite? + value.should == 1 + end + + it "returns -1 for negative infinity" do + value = -Complex(Float::INFINITY, 42).infinite? + value.should == -1 + end + + it "returns -1 for negative complex with infinite imaginary" do + value = -Complex(1, Float::INFINITY).infinite? + value.should == -1 + end + + it "returns nil for NaN" do + value = Complex(0, Float::NAN).infinite? + value.should == nil + end +end diff --git a/spec/ruby/core/complex/inspect_spec.rb b/spec/ruby/core/complex/inspect_spec.rb index b766e7f730..045be94b22 100644 --- a/spec/ruby/core/complex/inspect_spec.rb +++ b/spec/ruby/core/complex/inspect_spec.rb @@ -1,5 +1,37 @@ -require File.expand_path('../../../shared/complex/inspect', __FILE__) +require_relative '../../spec_helper' +require_relative '../numeric/fixtures/classes' describe "Complex#inspect" do - it_behaves_like(:complex_inspect, :inspect) + it "returns (${real}+${image}i) for positive imaginary parts" do + Complex(1).inspect.should == "(1+0i)" + Complex(7).inspect.should == "(7+0i)" + Complex(-1, 4).inspect.should == "(-1+4i)" + Complex(-7, 6.7).inspect.should == "(-7+6.7i)" + end + + it "returns (${real}-${image}i) for negative imaginary parts" do + Complex(0, -1).inspect.should == "(0-1i)" + Complex(-1, -4).inspect.should == "(-1-4i)" + Complex(-7, -6.7).inspect.should == "(-7-6.7i)" + end + + it "calls #inspect on real and imaginary" do + real = NumericSpecs::Subclass.new + # + because of https://bugs.ruby-lang.org/issues/20337 + real.should_receive(:inspect).and_return(+"1") + imaginary = NumericSpecs::Subclass.new + imaginary.should_receive(:inspect).and_return("2") + imaginary.should_receive(:<).any_number_of_times.and_return(false) + Complex(real, imaginary).inspect.should == "(1+2i)" + end + + it "adds an `*' before the `i' if the last character of the imaginary part is not numeric" do + real = NumericSpecs::Subclass.new + # + because of https://bugs.ruby-lang.org/issues/20337 + real.should_receive(:inspect).and_return(+"(1)") + imaginary = NumericSpecs::Subclass.new + imaginary.should_receive(:inspect).and_return("(2)") + imaginary.should_receive(:<).any_number_of_times.and_return(false) + Complex(real, imaginary).inspect.should == "((1)+(2)*i)" + end end diff --git a/spec/ruby/core/complex/integer_spec.rb b/spec/ruby/core/complex/integer_spec.rb index 54b420e62c..559bfbccfd 100644 --- a/spec/ruby/core/complex/integer_spec.rb +++ b/spec/ruby/core/complex/integer_spec.rb @@ -1,9 +1,11 @@ +require_relative '../../spec_helper' + describe "Complex#integer?" do it "returns false for a Complex with no imaginary part" do - Complex(20).integer?.should be_false + Complex(20).integer?.should == false end it "returns false for a Complex with an imaginary part" do - Complex(20,3).integer?.should be_false + Complex(20,3).integer?.should == false end end diff --git a/spec/ruby/core/complex/magnitude_spec.rb b/spec/ruby/core/complex/magnitude_spec.rb index e9175d763e..6341b4eec8 100644 --- a/spec/ruby/core/complex/magnitude_spec.rb +++ b/spec/ruby/core/complex/magnitude_spec.rb @@ -1,5 +1,7 @@ -require File.expand_path('../../../shared/complex/abs', __FILE__) +require_relative '../../spec_helper' describe "Complex#magnitude" do - it_behaves_like(:complex_abs, :magnitude) + it "is an alias of Complex#abs" do + Complex.instance_method(:magnitude).should == Complex.instance_method(:abs) + end end diff --git a/spec/ruby/core/complex/marshal_dump_spec.rb b/spec/ruby/core/complex/marshal_dump_spec.rb index 8d37929f54..201d55e9e5 100644 --- a/spec/ruby/core/complex/marshal_dump_spec.rb +++ b/spec/ruby/core/complex/marshal_dump_spec.rb @@ -1,8 +1,8 @@ -require File.expand_path('../../../spec_helper', __FILE__) +require_relative '../../spec_helper' describe "Complex#marshal_dump" do it "is a private method" do - Complex.should have_private_instance_method(:marshal_dump, false) + Complex.private_instance_methods(false).should.include?(:marshal_dump) end it "dumps real and imaginary parts" do diff --git a/spec/ruby/core/complex/minus_spec.rb b/spec/ruby/core/complex/minus_spec.rb index 2b7b8bb270..7c104ce784 100644 --- a/spec/ruby/core/complex/minus_spec.rb +++ b/spec/ruby/core/complex/minus_spec.rb @@ -1,5 +1,45 @@ -require File.expand_path('../../../shared/complex/minus', __FILE__) +require_relative '../../spec_helper' describe "Complex#-" do - it_behaves_like :complex_minus, :- + describe "with Complex" do + it "subtracts both the real and imaginary components" do + (Complex(1, 2) - Complex(10, 20)).should == Complex(1 - 10, 2 - 20) + (Complex(1.5, 2.1) - Complex(100.2, -30.3)).should == Complex(1.5 - 100.2, 2.1 - (-30.3)) + end + end + + describe "with Integer" do + it "subtracts the real number from the real component of self" do + (Complex(1, 2) - 50).should == Complex(-49, 2) + (Complex(1, 2) - 50.5).should == Complex(-49.5, 2) + 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 + + describe "passed Numeric which responds to #real? with true" do + it "coerces the passed argument to the type of the real part and subtracts the resulting elements" do + n = mock_numeric('n') + n.should_receive(:real?).and_return(true) + n.should_receive(:coerce).with(1).and_return([1, 4]) + (Complex(1, 2) - n).should == Complex(-3, 2) + end + end + + describe "passed Numeric which responds to #real? with false" do + it "coerces the passed argument to Complex and subtracts the resulting elements" do + n = mock_numeric('n') + n.should_receive(:real?).and_return(false) + n.should_receive(:coerce).with(Complex(1, 2)).and_return([Complex(1, 2), Complex(3, 4)]) + (Complex(1, 2) - n).should == Complex(-2, -2) + end + end end diff --git a/spec/ruby/core/complex/multiply_spec.rb b/spec/ruby/core/complex/multiply_spec.rb index 7f600fc1ab..35bf7c8455 100644 --- a/spec/ruby/core/complex/multiply_spec.rb +++ b/spec/ruby/core/complex/multiply_spec.rb @@ -1,5 +1,49 @@ -require File.expand_path('../../../shared/complex/multiply', __FILE__) +require_relative '../../spec_helper' describe "Complex#*" do - it_behaves_like :complex_multiply, :* + describe "with Complex" do + it "multiplies according to the usual rule for complex numbers: (a + bi) * (c + di) = ac - bd + (ad + bc)i" do + (Complex(1, 2) * Complex(10, 20)).should == Complex((1 * 10) - (2 * 20), (1 * 20) + (2 * 10)) + (Complex(1.5, 2.1) * Complex(100.2, -30.3)).should == Complex((1.5 * 100.2) - (2.1 * -30.3), (1.5 * -30.3) + (2.1 * 100.2)) + end + end + + describe "with Integer" do + it "multiplies both parts of self by the given Integer" do + (Complex(3, 2) * 50).should == Complex(150, 100) + (Complex(-3, 2) * 50.5).should == Complex(-151.5, 101) + 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 + + describe "with a Numeric which responds to #real? with true" do + it "multiples both parts of self by other" do + other = mock_numeric('other') + real = mock_numeric('real') + imag = mock_numeric('imag') + other.should_receive(:real?).and_return(true) + real.should_receive(:*).with(other).and_return(1) + imag.should_receive(:*).with(other).and_return(2) + (Complex(real, imag) * other).should == Complex(1, 2) + end + + describe "with a Numeric which responds to #real? with false" do + it "coerces the passed argument to Complex and multiplies the resulting elements" do + complex = Complex(3, 0) + other = mock_numeric('other') + other.should_receive(:real?).any_number_of_times.and_return(false) + other.should_receive(:coerce).with(complex).and_return([5, 2]) + (complex * other).should == 10 + end + end + end end diff --git a/spec/ruby/core/complex/negative_spec.rb b/spec/ruby/core/complex/negative_spec.rb index 5b51933106..566975b8e1 100644 --- a/spec/ruby/core/complex/negative_spec.rb +++ b/spec/ruby/core/complex/negative_spec.rb @@ -1,11 +1,13 @@ +require_relative '../../spec_helper' + describe "Complex#negative?" do it "is undefined" do c = Complex(1) - c.methods.should_not include(:negative?) + c.methods.should_not.include?(:negative?) - lambda { + -> { c.negative? - }.should raise_error(NoMethodError) + }.should.raise(NoMethodError) end end diff --git a/spec/ruby/core/complex/numerator_spec.rb b/spec/ruby/core/complex/numerator_spec.rb index 8c0e8761bd..7ab66e6a61 100644 --- a/spec/ruby/core/complex/numerator_spec.rb +++ b/spec/ruby/core/complex/numerator_spec.rb @@ -1,5 +1,19 @@ -require File.expand_path('../../../shared/complex/numerator', __FILE__) +require_relative '../../spec_helper' describe "Complex#numerator" do - it_behaves_like(:complex_numerator, :numerator) + it "returns self's numerator" do + Complex(2).numerator.should == Complex(2) + Complex(3, 4).numerator.should == Complex(3, 4) + + Complex(Rational(3, 4), Rational(3, 4)).numerator.should == Complex(3, 3) + Complex(Rational(7, 4), Rational(8, 4)).numerator.should == Complex(7, 8) + + Complex(Rational(7, 8), Rational(8, 4)).numerator.should == Complex(7, 16) + Complex(Rational(7, 4), Rational(8, 8)).numerator.should == Complex(7, 4) + + # NOTE: + # Bug? - Fails with a MethodMissingError + # (undefined method `denominator' for 3.5:Float) + # Complex(3.5, 3.7).numerator + end end diff --git a/spec/ruby/core/complex/phase_spec.rb b/spec/ruby/core/complex/phase_spec.rb index c17f922c7f..2ab90989e1 100644 --- a/spec/ruby/core/complex/phase_spec.rb +++ b/spec/ruby/core/complex/phase_spec.rb @@ -1,6 +1,7 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../../../shared/complex/arg', __FILE__) +require_relative '../../spec_helper' describe "Complex#phase" do - it_behaves_like :complex_arg, :phase + it "is an alias of Complex#arg" do + Complex.instance_method(:phase).should == Complex.instance_method(:arg) + end end diff --git a/spec/ruby/core/complex/plus_spec.rb b/spec/ruby/core/complex/plus_spec.rb index 076582681f..2056ca786c 100644 --- a/spec/ruby/core/complex/plus_spec.rb +++ b/spec/ruby/core/complex/plus_spec.rb @@ -1,5 +1,45 @@ -require File.expand_path('../../../shared/complex/plus', __FILE__) +require_relative '../../spec_helper' describe "Complex#+" do - it_behaves_like :complex_plus, :+ + describe "with Complex" do + it "adds both the real and imaginary components" do + (Complex(1, 2) + Complex(10, 20)).should == Complex(1 + 10, 2 + 20) + (Complex(1.5, 2.1) + Complex(100.2, -30.3)).should == Complex(1.5 + 100.2, 2.1 + (-30.3)) + end + end + + describe "with Integer" do + it "adds the real number to the real component of self" do + (Complex(1, 2) + 50).should == Complex(51, 2) + (Complex(1, 2) + 50.5).should == Complex(51.5, 2) + 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 + + describe "passed Numeric which responds to #real? with true" do + it "coerces the passed argument to the type of the real part and adds the resulting elements" do + n = mock_numeric('n') + n.should_receive(:real?).and_return(true) + n.should_receive(:coerce).with(1).and_return([1, 4]) + (Complex(1, 2) + n).should == Complex(5, 2) + end + end + + describe "passed Numeric which responds to #real? with false" do + it "coerces the passed argument to Complex and adds the resulting elements" do + n = mock_numeric('n') + n.should_receive(:real?).and_return(false) + n.should_receive(:coerce).with(Complex(1, 2)).and_return([Complex(1, 2), Complex(3, 4)]) + (Complex(1, 2) + n).should == Complex(4, 6) + end + end end diff --git a/spec/ruby/core/complex/polar_spec.rb b/spec/ruby/core/complex/polar_spec.rb index d847e916ff..824211fcd0 100644 --- a/spec/ruby/core/complex/polar_spec.rb +++ b/spec/ruby/core/complex/polar_spec.rb @@ -1,14 +1,41 @@ -require File.expand_path('../../../shared/complex/polar', __FILE__) +require_relative '../../spec_helper' describe "Complex.polar" do - it_behaves_like(:complex_polar_class, :polar) + it "returns a complex number in terms of radius and angle" do + Complex.polar(50, 60).should be_close(Complex(-47.6206490207578, -15.2405310551108), TOLERANCE) + Complex.polar(-10, -20).should be_close(Complex(-4.08082061813392, 9.12945250727628), TOLERANCE) + end it "raises a TypeError when given non real arguments" do - lambda{ Complex.polar(nil) }.should raise_error(TypeError) - lambda{ Complex.polar(nil, nil) }.should raise_error(TypeError) + ->{ Complex.polar(nil) }.should.raise(TypeError) + ->{ Complex.polar(nil, nil) }.should.raise(TypeError) + end + + it "computes the real values of the real & imaginary parts from the polar form" do + a = Complex.polar(1.0+0.0i, Math::PI/2+0.0i) + a.real.should be_close(0.0, TOLERANCE) + a.imag.should be_close(1.0, TOLERANCE) + a.real.real?.should == true + a.imag.real?.should == true + + b = Complex.polar(1+0.0i) + b.real.should be_close(1.0, TOLERANCE) + b.imag.should be_close(0.0, TOLERANCE) + b.real.real?.should == true + b.imag.real?.should == true end end describe "Complex#polar" do - it_behaves_like(:complex_polar, :polar) + it "returns the absolute value and the argument" do + a = Complex(3, 4) + a.polar.size.should == 2 + a.polar.first.should == 5.0 + a.polar.last.should be_close(0.927295218001612, TOLERANCE) + + b = Complex(-3.5, 4.7) + b.polar.size.should == 2 + b.polar.first.should be_close(5.86003412959345, TOLERANCE) + b.polar.last.should be_close(2.21088447955664, TOLERANCE) + end end diff --git a/spec/ruby/core/complex/positive_spec.rb b/spec/ruby/core/complex/positive_spec.rb index 88898d31cf..d2fb256538 100644 --- a/spec/ruby/core/complex/positive_spec.rb +++ b/spec/ruby/core/complex/positive_spec.rb @@ -1,11 +1,13 @@ +require_relative '../../spec_helper' + describe "Complex#positive?" do it "is undefined" do c = Complex(1) - c.methods.should_not include(:positive?) + c.methods.should_not.include?(:positive?) - lambda { + -> { c.positive? - }.should raise_error(NoMethodError) + }.should.raise(NoMethodError) end end diff --git a/spec/ruby/core/complex/quo_spec.rb b/spec/ruby/core/complex/quo_spec.rb index cb3f1203b4..be0a44d532 100644 --- a/spec/ruby/core/complex/quo_spec.rb +++ b/spec/ruby/core/complex/quo_spec.rb @@ -1,5 +1,7 @@ -require File.expand_path('../../../shared/complex/divide', __FILE__) +require_relative '../../spec_helper' describe "Complex#quo" do - it_behaves_like :complex_divide, :quo + it "is an alias of Complex#/" do + Complex.instance_method(:quo).should == Complex.instance_method(:/) + end end diff --git a/spec/ruby/core/complex/rationalize_spec.rb b/spec/ruby/core/complex/rationalize_spec.rb index 2dd1e9b122..d49bb52def 100644 --- a/spec/ruby/core/complex/rationalize_spec.rb +++ b/spec/ruby/core/complex/rationalize_spec.rb @@ -1,10 +1,12 @@ +require_relative '../../spec_helper' + describe "Complex#rationalize" do it "raises RangeError if self has non-zero imaginary part" do - lambda { Complex(1,5).rationalize }.should raise_error(RangeError) + -> { Complex(1,5).rationalize }.should.raise(RangeError) end it "raises RangeError if self has 0.0 imaginary part" do - lambda { Complex(1,0.0).rationalize }.should raise_error(RangeError) + -> { Complex(1,0.0).rationalize }.should.raise(RangeError) end it "returns a Rational if self has zero imaginary part" do @@ -23,7 +25,7 @@ describe "Complex#rationalize" do end it "raises ArgumentError when passed more than one argument" do - lambda { Complex(1,0).rationalize(0.1, 0.1) }.should raise_error(ArgumentError) - lambda { Complex(1,0).rationalize(0.1, 0.1, 2) }.should raise_error(ArgumentError) + -> { Complex(1,0).rationalize(0.1, 0.1) }.should.raise(ArgumentError) + -> { Complex(1,0).rationalize(0.1, 0.1, 2) }.should.raise(ArgumentError) end end diff --git a/spec/ruby/core/complex/real_spec.rb b/spec/ruby/core/complex/real_spec.rb index 1293e02d3c..41734b23f0 100644 --- a/spec/ruby/core/complex/real_spec.rb +++ b/spec/ruby/core/complex/real_spec.rb @@ -1,23 +1,28 @@ -require File.expand_path('../../../shared/complex/real', __FILE__) +require_relative '../../spec_helper' describe "Complex#real" do - it_behaves_like(:complex_real, :real) + it "returns the real part of self" do + Complex(1, 0).real.should == 1 + Complex(2, 1).real.should == 2 + Complex(6.7, 8.9).real.should == 6.7 + Complex(bignum_value, 3).real.should == bignum_value + end end describe "Complex#real?" do it "returns false if there is an imaginary part" do - Complex(2,3).real?.should be_false + Complex(2,3).real?.should == false end it "returns false if there is not an imaginary part" do - Complex(2).real?.should be_false + Complex(2).real?.should == false end it "returns false if the real part is Infinity" do - Complex(infinity_value).real?.should be_false + Complex(infinity_value).real?.should == false end it "returns false if the real part is NaN" do - Complex(nan_value).real?.should be_false + Complex(nan_value).real?.should == false end end diff --git a/spec/ruby/core/complex/rect_spec.rb b/spec/ruby/core/complex/rect_spec.rb index cf2ff9e83b..72f2bf9930 100644 --- a/spec/ruby/core/complex/rect_spec.rb +++ b/spec/ruby/core/complex/rect_spec.rb @@ -1,9 +1,13 @@ -require File.expand_path('../../../shared/complex/rect', __FILE__) +require_relative '../../spec_helper' describe "Complex#rect" do - it_behaves_like(:complex_rect, :rect) + it "is an alias of Complex#rectangular" do + Complex.instance_method(:rect).should == Complex.instance_method(:rectangular) + end end describe "Complex.rect" do - it_behaves_like(:complex_rect_class, :rect) + it "is an alias of Complex#rectangular" do + Complex.method(:rect).should == Complex.method(:rectangular) + end end diff --git a/spec/ruby/core/complex/rectangular_spec.rb b/spec/ruby/core/complex/rectangular_spec.rb index 0eb29c3500..7789bf925e 100644 --- a/spec/ruby/core/complex/rectangular_spec.rb +++ b/spec/ruby/core/complex/rectangular_spec.rb @@ -1,9 +1,114 @@ -require File.expand_path('../../../shared/complex/rect', __FILE__) +require_relative '../../spec_helper' describe "Complex#rectangular" do - it_behaves_like(:complex_rect, :rectangular) + before :each do + @numbers = [ + Complex(1), + Complex(0, 20), + Complex(0, 0), + Complex(0.0), + Complex(9999999**99), + Complex(-20), + Complex.polar(76, 10) + ] + end + + it "returns an Array" do + @numbers.each do |number| + number.rectangular.should.instance_of?(Array) + end + end + + it "returns a two-element Array" do + @numbers.each do |number| + number.rectangular.size.should == 2 + end + end + + it "returns the real part of self as the first element" do + @numbers.each do |number| + number.rectangular.first.should == number.real + end + end + + it "returns the imaginary part of self as the last element" do + @numbers.each do |number| + number.rectangular.last.should == number.imaginary + end + end + + it "raises an ArgumentError if given any arguments" do + @numbers.each do |number| + -> { number.rectangular(number) }.should.raise(ArgumentError) + end + end end describe "Complex.rectangular" do - it_behaves_like(:complex_rect_class, :rectangular) + describe "passed a Numeric n which responds to #real? with true" do + it "returns a Complex with real part n and imaginary part 0" do + n = mock_numeric('n') + n.should_receive(:real?).any_number_of_times.and_return(true) + result = Complex.rectangular(n) + result.real.should == n + result.imag.should == 0 + end + end + + describe "passed a Numeric which responds to #real? with false" do + it "raises TypeError" do + n = mock_numeric('n') + n.should_receive(:real?).any_number_of_times.and_return(false) + -> { Complex.rectangular(n) }.should.raise(TypeError) + end + end + + describe "passed Numerics n1 and n2 and at least one responds to #real? with false" do + [[false, false], [false, true], [true, false]].each do |r1, r2| + it "raises TypeError" do + n1 = mock_numeric('n1') + n2 = mock_numeric('n2') + n1.should_receive(:real?).any_number_of_times.and_return(r1) + n2.should_receive(:real?).any_number_of_times.and_return(r2) + -> { Complex.rectangular(n1, n2) }.should.raise(TypeError) + end + end + end + + describe "passed Numerics n1 and n2 and both respond to #real? with true" do + it "returns a Complex with real part n1 and imaginary part n2" do + n1 = mock_numeric('n1') + n2 = mock_numeric('n2') + n1.should_receive(:real?).any_number_of_times.and_return(true) + n2.should_receive(:real?).any_number_of_times.and_return(true) + result = Complex.rectangular(n1, n2) + result.real.should == n1 + result.imag.should == n2 + end + end + + describe "when passed a Complex" do + it "raises a TypeError when the imaginary part is not zero" do + -> { + Complex.rectangular(1.0+1i, 2) + }.should.raise(TypeError) + + -> { + Complex.rectangular(1.0, 2i) + }.should.raise(TypeError) + end + + it "ignores the imaginary part if it is zero" do + result = Complex.rectangular(1.0+0i, 2+0.0i) + result.real.should == 1.0 + result.imag.should == 2 + end + end + + describe "passed a non-Numeric" do + it "raises TypeError" do + -> { Complex.rectangular(:sym) }.should.raise(TypeError) + -> { Complex.rectangular(0, :sym) }.should.raise(TypeError) + end + end end diff --git a/spec/ruby/core/complex/to_c_spec.rb b/spec/ruby/core/complex/to_c_spec.rb new file mode 100644 index 0000000000..cd7195556c --- /dev/null +++ b/spec/ruby/core/complex/to_c_spec.rb @@ -0,0 +1,12 @@ +require_relative '../../spec_helper' + +describe "Complex#to_c" do + it "returns self" do + value = Complex(1, 5) + value.to_c.should.equal?(value) + end + + it 'returns the same value' do + Complex(1, 5).to_c.should == Complex(1, 5) + end +end diff --git a/spec/ruby/core/complex/to_f_spec.rb b/spec/ruby/core/complex/to_f_spec.rb index 33342e61cc..9f3265cdb9 100644 --- a/spec/ruby/core/complex/to_f_spec.rb +++ b/spec/ruby/core/complex/to_f_spec.rb @@ -1,7 +1,7 @@ -require File.expand_path('../../../spec_helper', __FILE__) +require_relative '../../spec_helper' describe "Complex#to_f" do - describe "when the imaginary part is Fixnum 0" do + describe "when the imaginary part is Integer 0" do it "returns the result of sending #to_f to the real part" do real = mock_numeric('real') real.should_receive(:to_f).and_return(:f) @@ -29,13 +29,13 @@ describe "Complex#to_f" do describe "when the imaginary part is non-zero" do it "raises RangeError" do - lambda { Complex(0, 1).to_f }.should raise_error(RangeError) + -> { Complex(0, 1).to_f }.should.raise(RangeError) end end describe "when the imaginary part is Float 0.0" do it "raises RangeError" do - lambda { Complex(0, 0.0).to_f }.should raise_error(RangeError) + -> { Complex(0, 0.0).to_f }.should.raise(RangeError) end end end diff --git a/spec/ruby/core/complex/to_i_spec.rb b/spec/ruby/core/complex/to_i_spec.rb index ea8b199b2e..9149ffbbaa 100644 --- a/spec/ruby/core/complex/to_i_spec.rb +++ b/spec/ruby/core/complex/to_i_spec.rb @@ -1,7 +1,7 @@ -require File.expand_path('../../../spec_helper', __FILE__) +require_relative '../../spec_helper' describe "Complex#to_i" do - describe "when the imaginary part is Fixnum 0" do + describe "when the imaginary part is Integer 0" do it "returns the result of sending #to_i to the real part" do real = mock_numeric('real') real.should_receive(:to_i).and_return(:i) @@ -29,13 +29,13 @@ describe "Complex#to_i" do describe "when the imaginary part is non-zero" do it "raises RangeError" do - lambda { Complex(0, 1).to_i }.should raise_error(RangeError) + -> { Complex(0, 1).to_i }.should.raise(RangeError) end end describe "when the imaginary part is Float 0.0" do it "raises RangeError" do - lambda { Complex(0, 0.0).to_i }.should raise_error(RangeError) + -> { Complex(0, 0.0).to_i }.should.raise(RangeError) end end end diff --git a/spec/ruby/core/complex/to_r_spec.rb b/spec/ruby/core/complex/to_r_spec.rb index 92fcdd3862..6587ae9e2e 100644 --- a/spec/ruby/core/complex/to_r_spec.rb +++ b/spec/ruby/core/complex/to_r_spec.rb @@ -1,7 +1,7 @@ -require File.expand_path('../../../spec_helper', __FILE__) +require_relative '../../spec_helper' describe "Complex#to_r" do - describe "when the imaginary part is Fixnum 0" do + describe "when the imaginary part is Integer 0" do it "returns the result of sending #to_r to the real part" do real = mock_numeric('real') real.should_receive(:to_r).and_return(:r) @@ -29,13 +29,21 @@ describe "Complex#to_r" do describe "when the imaginary part is non-zero" do it "raises RangeError" do - lambda { Complex(0, 1).to_r }.should raise_error(RangeError) + -> { Complex(0, 1).to_r }.should.raise(RangeError) end end describe "when the imaginary part is Float 0.0" do - it "raises RangeError" do - lambda { Complex(0, 0.0).to_r }.should raise_error(RangeError) + ruby_version_is ''...'3.4' do + it "raises RangeError" do + -> { Complex(0, 0.0).to_r }.should.raise(RangeError) + end + end + + ruby_version_is '3.4' do + it "returns a Rational" do + Complex(0, 0.0).to_r.should == 0r + end end end end diff --git a/spec/ruby/core/complex/to_s_spec.rb b/spec/ruby/core/complex/to_s_spec.rb index c398bb000e..ceccffe470 100644 --- a/spec/ruby/core/complex/to_s_spec.rb +++ b/spec/ruby/core/complex/to_s_spec.rb @@ -1,5 +1,55 @@ -require File.expand_path('../../../shared/complex/to_s', __FILE__) +require_relative '../../spec_helper' +require_relative '../numeric/fixtures/classes' 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 + + it "treats real and imaginary parts as strings" do + real = NumericSpecs::Subclass.new + # + because of https://bugs.ruby-lang.org/issues/20337 + real.should_receive(:to_s).and_return(+"1") + imaginary = NumericSpecs::Subclass.new + imaginary.should_receive(:to_s).and_return("2") + imaginary.should_receive(:<).any_number_of_times.and_return(false) + Complex(real, imaginary).to_s.should == "1+2i" + end end diff --git a/spec/ruby/core/complex/uminus_spec.rb b/spec/ruby/core/complex/uminus_spec.rb index 1bf56e770b..c0184e11de 100644 --- a/spec/ruby/core/complex/uminus_spec.rb +++ b/spec/ruby/core/complex/uminus_spec.rb @@ -1,4 +1,4 @@ -require File.expand_path('../../../spec_helper', __FILE__) +require_relative '../../spec_helper' describe "Complex#-@" do it "sends #-@ to the real and imaginary parts and returns a Complex with the resulting respective parts" do |