From e87fb88be844f0fae736768846954b6f6f7dc7c3 Mon Sep 17 00:00:00 2001
From: eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 25 Sep 2018 10:41:16 +0000
Subject: Update to ruby/spec@241f9e7

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 spec/ruby/core/complex/abs2_spec.rb        |  8 ++-
 spec/ruby/core/complex/abs_spec.rb         |  3 +-
 spec/ruby/core/complex/angle_spec.rb       |  3 +-
 spec/ruby/core/complex/arg_spec.rb         |  3 +-
 spec/ruby/core/complex/coerce_spec.rb      | 69 +++++++++++++++++++++-
 spec/ruby/core/complex/conj_spec.rb        |  2 +-
 spec/ruby/core/complex/conjugate_spec.rb   |  2 +-
 spec/ruby/core/complex/constants_spec.rb   |  6 +-
 spec/ruby/core/complex/denominator_spec.rb | 12 +++-
 spec/ruby/core/complex/divide_spec.rb      |  3 +-
 spec/ruby/core/complex/equal_value_spec.rb | 92 ++++++++++++++++++++++++++++-
 spec/ruby/core/complex/exponent_spec.rb    | 60 ++++++++++++++++++-
 spec/ruby/core/complex/imag_spec.rb        |  3 +-
 spec/ruby/core/complex/imaginary_spec.rb   |  3 +-
 spec/ruby/core/complex/inspect_spec.rb     | 15 ++++-
 spec/ruby/core/complex/integer_spec.rb     |  2 +
 spec/ruby/core/complex/magnitude_spec.rb   |  3 +-
 spec/ruby/core/complex/minus_spec.rb       | 44 +++++++++++++-
 spec/ruby/core/complex/multiply_spec.rb    | 48 ++++++++++++++-
 spec/ruby/core/complex/negative_spec.rb    |  2 +
 spec/ruby/core/complex/numerator_spec.rb   | 18 +++++-
 spec/ruby/core/complex/phase_spec.rb       |  2 +-
 spec/ruby/core/complex/plus_spec.rb        | 44 +++++++++++++-
 spec/ruby/core/complex/polar_spec.rb       | 19 +++++-
 spec/ruby/core/complex/positive_spec.rb    |  2 +
 spec/ruby/core/complex/quo_spec.rb         |  3 +-
 spec/ruby/core/complex/rationalize_spec.rb |  2 +
 spec/ruby/core/complex/real_spec.rb        |  9 ++-
 spec/ruby/core/complex/rect_spec.rb        |  3 +-
 spec/ruby/core/complex/rectangular_spec.rb |  3 +-
 spec/ruby/core/complex/shared/abs.rb       | 10 ++++
 spec/ruby/core/complex/shared/arg.rb       |  9 +++
 spec/ruby/core/complex/shared/conjugate.rb |  8 +++
 spec/ruby/core/complex/shared/divide.rb    | 82 ++++++++++++++++++++++++++
 spec/ruby/core/complex/shared/image.rb     |  8 +++
 spec/ruby/core/complex/shared/rect.rb      | 94 ++++++++++++++++++++++++++++++
 spec/ruby/core/complex/to_s_spec.rb        | 43 +++++++++++++-
 37 files changed, 698 insertions(+), 44 deletions(-)
 create mode 100644 spec/ruby/core/complex/shared/abs.rb
 create mode 100644 spec/ruby/core/complex/shared/arg.rb
 create mode 100644 spec/ruby/core/complex/shared/conjugate.rb
 create mode 100644 spec/ruby/core/complex/shared/divide.rb
 create mode 100644 spec/ruby/core/complex/shared/image.rb
 create mode 100644 spec/ruby/core/complex/shared/rect.rb

(limited to 'spec/ruby/core/complex')

diff --git a/spec/ruby/core/complex/abs2_spec.rb b/spec/ruby/core/complex/abs2_spec.rb
index de40197c76..3e5c5fd225 100644
--- a/spec/ruby/core/complex/abs2_spec.rb
+++ b/spec/ruby/core/complex/abs2_spec.rb
@@ -1,5 +1,9 @@
-require_relative '../../shared/complex/abs2'
+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 8114d70a7e..43912c517f 100644
--- a/spec/ruby/core/complex/abs_spec.rb
+++ b/spec/ruby/core/complex/abs_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/abs'
+require_relative '../../spec_helper'
+require_relative 'shared/abs'
 
 describe "Complex#abs" do
   it_behaves_like :complex_abs, :abs
diff --git a/spec/ruby/core/complex/angle_spec.rb b/spec/ruby/core/complex/angle_spec.rb
index 237838fc2d..4aa176956f 100644
--- a/spec/ruby/core/complex/angle_spec.rb
+++ b/spec/ruby/core/complex/angle_spec.rb
@@ -1,6 +1,5 @@
 require_relative '../../spec_helper'
-
-require_relative '../../shared/complex/arg'
+require_relative 'shared/arg'
 
 describe "Complex#angle" do
   it_behaves_like :complex_arg, :angle
diff --git a/spec/ruby/core/complex/arg_spec.rb b/spec/ruby/core/complex/arg_spec.rb
index 04c406e60e..009f19429f 100644
--- a/spec/ruby/core/complex/arg_spec.rb
+++ b/spec/ruby/core/complex/arg_spec.rb
@@ -1,6 +1,5 @@
 require_relative '../../spec_helper'
-
-require_relative '../../shared/complex/arg'
+require_relative 'shared/arg'
 
 describe "Complex#arg" do
   it_behaves_like :complex_arg, :arg
diff --git a/spec/ruby/core/complex/coerce_spec.rb b/spec/ruby/core/complex/coerce_spec.rb
index 955309d5cd..ce2fb36b73 100644
--- a/spec/ruby/core/complex/coerce_spec.rb
+++ b/spec/ruby/core/complex/coerce_spec.rb
@@ -1,5 +1,70 @@
-require_relative '../../shared/complex/coerce'
+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 be_kind_of(Complex)
+    result.last.should be_kind_of(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 be_kind_of(Complex)
+    result.last.should be_kind_of(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 be_kind_of(Complex)
+    result.last.should be_kind_of(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 be_kind_of(Complex)
+    result.last.should be_kind_of(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)
+    lambda { @one.coerce(other) }.should raise_error(TypeError)
+  end
+
+  it "raises a TypeError when other is a String" do
+    lambda { @one.coerce("20") }.should raise_error(TypeError)
+  end
+
+  it "raises a TypeError when other is nil" do
+    lambda { @one.coerce(nil) }.should raise_error(TypeError)
+  end
+
+  it "raises a TypeError when other is false" do
+    lambda { @one.coerce(false) }.should raise_error(TypeError)
+  end
 end
diff --git a/spec/ruby/core/complex/conj_spec.rb b/spec/ruby/core/complex/conj_spec.rb
index 59208e9e8d..5e3bc1acb8 100644
--- a/spec/ruby/core/complex/conj_spec.rb
+++ b/spec/ruby/core/complex/conj_spec.rb
@@ -1,5 +1,5 @@
 require_relative '../../spec_helper'
-require_relative '../../shared/complex/conjugate'
+require_relative 'shared/conjugate'
 
 describe "Complex#conj" do
   it_behaves_like :complex_conjugate, :conj
diff --git a/spec/ruby/core/complex/conjugate_spec.rb b/spec/ruby/core/complex/conjugate_spec.rb
index 8fda364027..f658bab4da 100644
--- a/spec/ruby/core/complex/conjugate_spec.rb
+++ b/spec/ruby/core/complex/conjugate_spec.rb
@@ -1,5 +1,5 @@
 require_relative '../../spec_helper'
-require_relative '../../shared/complex/conjugate'
+require_relative 'shared/conjugate'
 
 describe "Complex#conjugate" do
   it_behaves_like :complex_conjugate, :conjugate
diff --git a/spec/ruby/core/complex/constants_spec.rb b/spec/ruby/core/complex/constants_spec.rb
index f9584f6075..50303de16c 100644
--- a/spec/ruby/core/complex/constants_spec.rb
+++ b/spec/ruby/core/complex/constants_spec.rb
@@ -1,5 +1,7 @@
-require_relative '../../shared/complex/constants'
+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 511f0d2b72..c1a2003820 100644
--- a/spec/ruby/core/complex/denominator_spec.rb
+++ b/spec/ruby/core/complex/denominator_spec.rb
@@ -1,5 +1,13 @@
-require_relative '../../shared/complex/denominator'
+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 81f28c08e0..bebf862312 100644
--- a/spec/ruby/core/complex/divide_spec.rb
+++ b/spec/ruby/core/complex/divide_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/divide'
+require_relative '../../spec_helper'
+require_relative 'shared/divide'
 
 describe "Complex#/" do
   it_behaves_like :complex_divide, :/
diff --git a/spec/ruby/core/complex/equal_value_spec.rb b/spec/ruby/core/complex/equal_value_spec.rb
index b31eba1bb3..b1e4f9cfcd 100644
--- a/spec/ruby/core/complex/equal_value_spec.rb
+++ b/spec/ruby/core/complex/equal_value_spec.rb
@@ -1,5 +1,93 @@
-require_relative '../../shared/complex/equal_value'
+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
+    # Fixnum#==, Float#== and Bignum#== 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 be_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 be_true
+    end
+
+    it "returns false when when the imaginary part is not zero" do
+      (Complex(3, 1) == @other).should be_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 be_true
+    end
+  end
 end
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
diff --git a/spec/ruby/core/complex/imag_spec.rb b/spec/ruby/core/complex/imag_spec.rb
index d8635389cc..2bafd1ab54 100644
--- a/spec/ruby/core/complex/imag_spec.rb
+++ b/spec/ruby/core/complex/imag_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/image'
+require_relative '../../spec_helper'
+require_relative 'shared/image'
 
 describe "Complex#imag" do
   it_behaves_like :complex_image, :imag
diff --git a/spec/ruby/core/complex/imaginary_spec.rb b/spec/ruby/core/complex/imaginary_spec.rb
index 325cce961a..a8a1bfea90 100644
--- a/spec/ruby/core/complex/imaginary_spec.rb
+++ b/spec/ruby/core/complex/imaginary_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/image'
+require_relative '../../spec_helper'
+require_relative 'shared/image'
 
 describe "Complex#imaginary" do
   it_behaves_like :complex_image, :imaginary
diff --git a/spec/ruby/core/complex/inspect_spec.rb b/spec/ruby/core/complex/inspect_spec.rb
index a1c9469d71..71aabde5be 100644
--- a/spec/ruby/core/complex/inspect_spec.rb
+++ b/spec/ruby/core/complex/inspect_spec.rb
@@ -1,5 +1,16 @@
-require_relative '../../shared/complex/inspect'
+require_relative '../../spec_helper'
 
 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
 end
diff --git a/spec/ruby/core/complex/integer_spec.rb b/spec/ruby/core/complex/integer_spec.rb
index 54b420e62c..0957accb70 100644
--- a/spec/ruby/core/complex/integer_spec.rb
+++ b/spec/ruby/core/complex/integer_spec.rb
@@ -1,3 +1,5 @@
+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
diff --git a/spec/ruby/core/complex/magnitude_spec.rb b/spec/ruby/core/complex/magnitude_spec.rb
index ae655f7acf..86f3b29868 100644
--- a/spec/ruby/core/complex/magnitude_spec.rb
+++ b/spec/ruby/core/complex/magnitude_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/abs'
+require_relative '../../spec_helper'
+require_relative 'shared/abs'
 
 describe "Complex#magnitude" do
   it_behaves_like :complex_abs, :magnitude
diff --git a/spec/ruby/core/complex/minus_spec.rb b/spec/ruby/core/complex/minus_spec.rb
index d391ae4890..7c104ce784 100644
--- a/spec/ruby/core/complex/minus_spec.rb
+++ b/spec/ruby/core/complex/minus_spec.rb
@@ -1,5 +1,45 @@
-require_relative '../../shared/complex/minus'
+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 b43855f695..35bf7c8455 100644
--- a/spec/ruby/core/complex/multiply_spec.rb
+++ b/spec/ruby/core/complex/multiply_spec.rb
@@ -1,5 +1,49 @@
-require_relative '../../shared/complex/multiply'
+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..1ea5392f39 100644
--- a/spec/ruby/core/complex/negative_spec.rb
+++ b/spec/ruby/core/complex/negative_spec.rb
@@ -1,3 +1,5 @@
+require_relative '../../spec_helper'
+
 describe "Complex#negative?" do
   it "is undefined" do
     c = Complex(1)
diff --git a/spec/ruby/core/complex/numerator_spec.rb b/spec/ruby/core/complex/numerator_spec.rb
index 527a703dfb..7ab66e6a61 100644
--- a/spec/ruby/core/complex/numerator_spec.rb
+++ b/spec/ruby/core/complex/numerator_spec.rb
@@ -1,5 +1,19 @@
-require_relative '../../shared/complex/numerator'
+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 da168d9e8e..89574bf533 100644
--- a/spec/ruby/core/complex/phase_spec.rb
+++ b/spec/ruby/core/complex/phase_spec.rb
@@ -1,5 +1,5 @@
 require_relative '../../spec_helper'
-require_relative '../../shared/complex/arg'
+require_relative 'shared/arg'
 
 describe "Complex#phase" do
   it_behaves_like :complex_arg, :phase
diff --git a/spec/ruby/core/complex/plus_spec.rb b/spec/ruby/core/complex/plus_spec.rb
index 71cf499c38..2056ca786c 100644
--- a/spec/ruby/core/complex/plus_spec.rb
+++ b/spec/ruby/core/complex/plus_spec.rb
@@ -1,5 +1,45 @@
-require_relative '../../shared/complex/plus'
+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 14ed67b0fc..f9d28b8388 100644
--- a/spec/ruby/core/complex/polar_spec.rb
+++ b/spec/ruby/core/complex/polar_spec.rb
@@ -1,7 +1,10 @@
-require_relative '../../shared/complex/polar'
+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)
@@ -10,5 +13,15 @@ describe "Complex.polar" do
 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..eea0af3755 100644
--- a/spec/ruby/core/complex/positive_spec.rb
+++ b/spec/ruby/core/complex/positive_spec.rb
@@ -1,3 +1,5 @@
+require_relative '../../spec_helper'
+
 describe "Complex#positive?" do
   it "is undefined" do
     c = Complex(1)
diff --git a/spec/ruby/core/complex/quo_spec.rb b/spec/ruby/core/complex/quo_spec.rb
index f305159ade..ee6fd65c79 100644
--- a/spec/ruby/core/complex/quo_spec.rb
+++ b/spec/ruby/core/complex/quo_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/divide'
+require_relative '../../spec_helper'
+require_relative 'shared/divide'
 
 describe "Complex#quo" do
   it_behaves_like :complex_divide, :quo
diff --git a/spec/ruby/core/complex/rationalize_spec.rb b/spec/ruby/core/complex/rationalize_spec.rb
index 2dd1e9b122..165f3d2700 100644
--- a/spec/ruby/core/complex/rationalize_spec.rb
+++ b/spec/ruby/core/complex/rationalize_spec.rb
@@ -1,3 +1,5 @@
+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)
diff --git a/spec/ruby/core/complex/real_spec.rb b/spec/ruby/core/complex/real_spec.rb
index 50726e9894..2ea791c005 100644
--- a/spec/ruby/core/complex/real_spec.rb
+++ b/spec/ruby/core/complex/real_spec.rb
@@ -1,7 +1,12 @@
-require_relative '../../shared/complex/real'
+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
diff --git a/spec/ruby/core/complex/rect_spec.rb b/spec/ruby/core/complex/rect_spec.rb
index db6756dbbc..9e95f3efc2 100644
--- a/spec/ruby/core/complex/rect_spec.rb
+++ b/spec/ruby/core/complex/rect_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/rect'
+require_relative '../../spec_helper'
+require_relative 'shared/rect'
 
 describe "Complex#rect" do
   it_behaves_like :complex_rect, :rect
diff --git a/spec/ruby/core/complex/rectangular_spec.rb b/spec/ruby/core/complex/rectangular_spec.rb
index c1d9a74aa8..d4b8ad9782 100644
--- a/spec/ruby/core/complex/rectangular_spec.rb
+++ b/spec/ruby/core/complex/rectangular_spec.rb
@@ -1,4 +1,5 @@
-require_relative '../../shared/complex/rect'
+require_relative '../../spec_helper'
+require_relative 'shared/rect'
 
 describe "Complex#rectangular" do
   it_behaves_like :complex_rect, :rectangular
diff --git a/spec/ruby/core/complex/shared/abs.rb b/spec/ruby/core/complex/shared/abs.rb
new file mode 100644
index 0000000000..2299479341
--- /dev/null
+++ b/spec/ruby/core/complex/shared/abs.rb
@@ -0,0 +1,10 @@
+describe :complex_abs, shared: true do
+  it "returns the modulus: |a + bi| = sqrt((a ^ 2) + (b ^ 2))" do
+    Complex(0, 0).send(@method).should == 0
+    Complex(3, 4).send(@method).should == 5 # well-known integer case
+    Complex(-3, 4).send(@method).should == 5
+    Complex(1, -1).send(@method).should be_close(Math.sqrt(2), TOLERANCE)
+    Complex(6.5, 0).send(@method).should be_close(6.5, TOLERANCE)
+    Complex(0, -7.2).send(@method).should be_close(7.2, TOLERANCE)
+  end
+end
diff --git a/spec/ruby/core/complex/shared/arg.rb b/spec/ruby/core/complex/shared/arg.rb
new file mode 100644
index 0000000000..c81f197433
--- /dev/null
+++ b/spec/ruby/core/complex/shared/arg.rb
@@ -0,0 +1,9 @@
+describe :complex_arg, shared: true do
+  it "returns the argument -- i.e., the angle from (1, 0) in the complex plane" do
+    two_pi = 2 * Math::PI
+    (Complex(1, 0).send(@method) % two_pi).should be_close(0, TOLERANCE)
+    (Complex(0, 2).send(@method) % two_pi).should be_close(Math::PI * 0.5, TOLERANCE)
+    (Complex(-100, 0).send(@method) % two_pi).should be_close(Math::PI, TOLERANCE)
+    (Complex(0, -75.3).send(@method) % two_pi).should be_close(Math::PI * 1.5, TOLERANCE)
+  end
+end
diff --git a/spec/ruby/core/complex/shared/conjugate.rb b/spec/ruby/core/complex/shared/conjugate.rb
new file mode 100644
index 0000000000..d1ae47bcb6
--- /dev/null
+++ b/spec/ruby/core/complex/shared/conjugate.rb
@@ -0,0 +1,8 @@
+describe :complex_conjugate, shared: true do
+  it "returns the complex conjugate: conj a + bi = a - bi" do
+    Complex(3, 5).send(@method).should == Complex(3, -5)
+    Complex(3, -5).send(@method).should == Complex(3, 5)
+    Complex(-3.0, 5.2).send(@method).should be_close(Complex(-3.0, -5.2), TOLERANCE)
+    Complex(3.0, -5.2).send(@method).should be_close(Complex(3.0, 5.2), TOLERANCE)
+  end
+end
diff --git a/spec/ruby/core/complex/shared/divide.rb b/spec/ruby/core/complex/shared/divide.rb
new file mode 100644
index 0000000000..e3701405b9
--- /dev/null
+++ b/spec/ruby/core/complex/shared/divide.rb
@@ -0,0 +1,82 @@
+describe :complex_divide, shared: true do
+  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.send(@method, 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.send(@method, 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).send(@method, 2).should == Complex(10, 20)
+      Complex(30, 30).send(@method, 10).should == Complex(3, 3)
+    end
+
+    it "raises a ZeroDivisionError when given zero" do
+      lambda { Complex(20, 40).send(@method, 0) }.should raise_error(ZeroDivisionError)
+    end
+
+    it "produces Rational parts" do
+      Complex(5, 9).send(@method, 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).send(@method, 2).should == Complex(10, 20)
+      Complex(15, 16).send(@method, 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).send(@method, 1.5).should == Complex(2, 6)
+      Complex(15, 16).send(@method, 2.0).should be_close(Complex(7.5, 8), TOLERANCE)
+    end
+
+    it "returns Complex(Infinity, Infinity) when given zero" do
+      Complex(20, 40).send(@method, 0.0).real.infinite?.should == 1
+      Complex(20, 40).send(@method, 0.0).imag.infinite?.should == 1
+      Complex(-20, 40).send(@method, 0.0).real.infinite?.should == -1
+      Complex(-20, 40).send(@method, 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.send(@method, 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).send(@method, 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.send(@method, other).should eql(Rational(5, 2))
+    end
+  end
+end
diff --git a/spec/ruby/core/complex/shared/image.rb b/spec/ruby/core/complex/shared/image.rb
new file mode 100644
index 0000000000..f839dbcaf9
--- /dev/null
+++ b/spec/ruby/core/complex/shared/image.rb
@@ -0,0 +1,8 @@
+describe :complex_image, shared: true do
+  it "returns the imaginary part of self" do
+    Complex(1, 0).send(@method).should == 0
+    Complex(2, 1).send(@method).should == 1
+    Complex(6.7, 8.9).send(@method).should == 8.9
+    Complex(1, bignum_value).send(@method).should == bignum_value
+  end
+end
diff --git a/spec/ruby/core/complex/shared/rect.rb b/spec/ruby/core/complex/shared/rect.rb
new file mode 100644
index 0000000000..971821ac33
--- /dev/null
+++ b/spec/ruby/core/complex/shared/rect.rb
@@ -0,0 +1,94 @@
+describe :complex_rect, shared: true do
+  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.send(@method).should be_an_instance_of(Array)
+    end
+  end
+
+  it "returns a two-element Array" do
+    @numbers.each do |number|
+      number.send(@method).size.should == 2
+    end
+  end
+
+  it "returns the real part of self as the first element" do
+   @numbers.each do |number|
+     number.send(@method).first.should == number.real
+   end
+  end
+
+  it "returns the imaginary part of self as the last element" do
+     @numbers.each do |number|
+       number.send(@method).last.should == number.imaginary
+     end
+  end
+
+  it "raises an ArgumentError if given any arguments" do
+    @numbers.each do |number|
+      lambda { number.send(@method, number) }.should raise_error(ArgumentError)
+    end
+  end
+end
+
+describe :complex_rect_class, shared: true do
+  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.send(@method, 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)
+      lambda { Complex.send(@method, n) }.should raise_error(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)
+        lambda { Complex.send(@method, n1, n2) }.should raise_error(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.send(@method, n1, n2)
+      result.real.should == n1
+      result.imag.should == n2
+    end
+  end
+
+  describe "passed a non-Numeric" do
+    it "raises TypeError" do
+      lambda { Complex.send(@method, :sym) }.should raise_error(TypeError)
+      lambda { Complex.send(@method, 0, :sym) }.should raise_error(TypeError)
+    end
+  end
+end
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
-- 
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