5 files changed, 164 insertions, 0 deletions
diff --git a/spec/rubyspec/shared/complex/numeric/arg.rb b/spec/rubyspec/shared/complex/numeric/arg.rb
new file mode 100644
index 0000000000..b7eb1f2e2d
--- /dev/null
+++ b/spec/rubyspec/shared/complex/numeric/arg.rb
@@ -0,0 +1,38 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe :numeric_arg, shared: true do
+  before :each do
+    @numbers = [
+      20,
+      Rational(3, 4),
+      bignum_value,
+      infinity_value
+    ]
+  end
+
+  it "returns 0 if positive" do
+    @numbers.each do |number|
+      number.send(@method).should == 0
+    end
+  end
+
+  it "returns Pi if negative" do
+    @numbers.each do |number|
+      (0-number).send(@method).should == Math::PI
+    end
+  end
+
+  describe "with a Numeric subclass" do
+    it "returns 0 if self#<(0) returns false" do
+      numeric = mock_numeric('positive')
+      numeric.should_receive(:<).with(0).and_return(false)
+      numeric.send(@method).should == 0
+    end
+
+    it "returns Pi if self#<(0) returns true" do
+      numeric = mock_numeric('positive')
+      numeric.should_receive(:<).with(0).and_return(true)
+      numeric.send(@method).should == Math::PI
+    end
+  end
+end
diff --git a/spec/rubyspec/shared/complex/numeric/conj.rb b/spec/rubyspec/shared/complex/numeric/conj.rb
new file mode 100644
index 0000000000..50cb060442
--- /dev/null
+++ b/spec/rubyspec/shared/complex/numeric/conj.rb
@@ -0,0 +1,20 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe :numeric_conj, shared: true do
+  before :each do
+    @numbers = [
+      20,             # Integer
+      398.72,         # Float
+      Rational(3, 4), # Rational
+      bignum_value,
+      infinity_value,
+      nan_value
+    ]
+  end
+
+  it "returns self" do
+    @numbers.each do |number|
+      number.send(@method).should equal(number)
+    end
+  end
+end
diff --git a/spec/rubyspec/shared/complex/numeric/imag.rb b/spec/rubyspec/shared/complex/numeric/imag.rb
new file mode 100644
index 0000000000..caf54e2cf9
--- /dev/null
+++ b/spec/rubyspec/shared/complex/numeric/imag.rb
@@ -0,0 +1,26 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe :numeric_imag, shared: true do
+  before :each do
+    @numbers = [
+      20,             # Integer
+      398.72,         # Float
+      Rational(3, 4), # Rational
+      bignum_value, # Bignum
+      infinity_value,
+      nan_value
+    ].map{|n| [n,-n]}.flatten
+  end
+
+  it "returns 0" do
+    @numbers.each do |number|
+      number.send(@method).should == 0
+    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
diff --git a/spec/rubyspec/shared/complex/numeric/polar.rb b/spec/rubyspec/shared/complex/numeric/polar.rb
new file mode 100644
index 0000000000..952b65c1b6
--- /dev/null
+++ b/spec/rubyspec/shared/complex/numeric/polar.rb
@@ -0,0 +1,50 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe :numeric_polar, shared: true do
+  before :each do
+    @pos_numbers = [
+      1,
+      3898172610**9,
+      987.18273,
+      Float::MAX,
+      Rational(13,7),
+      infinity_value,
+    ]
+    @neg_numbers = @pos_numbers.map {|n| -n}
+    @numbers = @pos_numbers + @neg_numbers
+    @numbers.push(0, 0.0)
+  end
+
+  it "returns a two-element Array" do
+    @numbers.each do |number|
+      number.polar.should be_an_instance_of(Array)
+      number.polar.size.should == 2
+    end
+  end
+
+  it "sets the first value to the absolute value of self" do
+    @numbers.each do |number|
+      number.polar.first.should == number.abs
+    end
+  end
+
+  it "sets the last value to 0 if self is positive" do
+    (@numbers - @neg_numbers).each do |number|
+      number.should >= 0
+      number.polar.last.should == 0
+    end
+  end
+
+  it "sets the last value to Pi if self is negative" do
+    @neg_numbers.each do |number|
+      number.should < 0
+      number.polar.last.should == Math::PI
+    end
+  end
+
+  it "returns [NaN, NaN] if self is NaN" do
+    nan_value.polar.size.should == 2
+    nan_value.polar.first.nan?.should be_true
+    nan_value.polar.last.nan?.should be_true
+  end
+end
diff --git a/spec/rubyspec/shared/complex/numeric/real.rb b/spec/rubyspec/shared/complex/numeric/real.rb
new file mode 100644
index 0000000000..0dcf2e8381
--- /dev/null
+++ b/spec/rubyspec/shared/complex/numeric/real.rb
@@ -0,0 +1,30 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe :numeric_real, shared: true do
+  before :each do
+    @numbers = [
+      20,             # Integer
+      398.72,         # Float
+      Rational(3, 4), # Rational
+      bignum_value, # Bignum
+      infinity_value,
+      nan_value
+    ].map{|n| [n,-n]}.flatten
+  end
+
+  it "returns self" do
+    @numbers.each do |number|
+      if number.to_f.nan?
+        number.real.nan?.should be_true
+      else
+        number.real.should == number
+      end
+    end
+  end
+
+  it "raises an ArgumentError if given any arguments" do
+   @numbers.each do |number|
+     lambda { number.real(number) }.should raise_error(ArgumentError)
+   end
+  end
+end