Update to ruby/spec@241f9e7

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 137 insertions, 2 deletions

diff --git a/spec/ruby/core/kernel/Complex_spec.rb b/spec/ruby/core/kernel/Complex_spec.rb
index b132292161..f738f43a10 100644
--- a/spec/ruby/core/kernel/Complex_spec.rb
+++ b/spec/ruby/core/kernel/Complex_spec.rb
@@ -1,6 +1,141 @@
 require_relative '../../spec_helper'
-require_relative '../../shared/complex/Complex'
 
 describe "Kernel.Complex()" do
-  it_behaves_like :kernel_Complex, :Complex
+  describe "when passed [Complex, Complex]" do
+    it "returns a new Complex number based on the two given numbers" do
+      Complex(Complex(3, 4), Complex(5, 6)).should == Complex(3 - 6, 4 + 5)
+      Complex(Complex(1.5, 2), Complex(-5, 6.3)).should == Complex(1.5 - 6.3, 2 - 5)
+    end
+  end
+
+  describe "when passed [Complex]" do
+    it "returns the passed Complex number" do
+      Complex(Complex(1, 2)).should == Complex(1, 2)
+      Complex(Complex(-3.4, bignum_value)).should == Complex(-3.4, bignum_value)
+    end
+  end
+
+  describe "when passed [Integer, Integer]" do
+    it "returns a new Complex number" do
+      Complex(1, 2).should be_an_instance_of(Complex)
+      Complex(1, 2).real.should == 1
+      Complex(1, 2).imag.should == 2
+
+      Complex(-3, -5).should be_an_instance_of(Complex)
+      Complex(-3, -5).real.should == -3
+      Complex(-3, -5).imag.should == -5
+
+      Complex(3.5, -4.5).should be_an_instance_of(Complex)
+      Complex(3.5, -4.5).real.should == 3.5
+      Complex(3.5, -4.5).imag.should == -4.5
+
+      Complex(bignum_value, 30).should be_an_instance_of(Complex)
+      Complex(bignum_value, 30).real.should == bignum_value
+      Complex(bignum_value, 30).imag.should == 30
+    end
+  end
+
+  describe "when passed [Integer/Float]" do
+    it "returns a new Complex number with 0 as the imaginary component" do
+      # Guard against the Mathn library
+      guard -> { !defined?(Math.rsqrt) } do
+        Complex(1).should be_an_instance_of(Complex)
+        Complex(1).imag.should == 0
+        Complex(1).real.should == 1
+
+        Complex(-3).should be_an_instance_of(Complex)
+        Complex(-3).imag.should == 0
+        Complex(-3).real.should == -3
+
+        Complex(-4.5).should be_an_instance_of(Complex)
+        Complex(-4.5).imag.should == 0
+        Complex(-4.5).real.should == -4.5
+
+        Complex(bignum_value).should be_an_instance_of(Complex)
+        Complex(bignum_value).imag.should == 0
+        Complex(bignum_value).real.should == bignum_value
+      end
+    end
+  end
+
+  describe "when passed a String" do
+    it "needs to be reviewed for spec completeness"
+  end
+
+  describe "when passed an Object which responds to #to_c" do
+    it "returns the passed argument" do
+      obj = Object.new; def obj.to_c; 1i end
+      Complex(obj).should == Complex(0, 1)
+    end
+  end
+
+  describe "when passed a Numeric which responds to #real? with false" do
+    it "returns the passed argument" do
+      n = mock_numeric("unreal")
+      n.should_receive(:real?).any_number_of_times.and_return(false)
+      Complex(n).should equal(n)
+    end
+  end
+
+  describe "when passed a Numeric which responds to #real? with true" do
+    it "returns a Complex with the passed argument as the real component and 0 as the imaginary component" do
+      n = mock_numeric("real")
+      n.should_receive(:real?).any_number_of_times.and_return(true)
+      result = Complex(n)
+      result.real.should equal(n)
+      result.imag.should equal(0)
+    end
+  end
+
+  describe "when 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 "returns n1 + n2 * Complex(0, 1)" do
+        n1 = mock_numeric("n1")
+        n2 = mock_numeric("n2")
+        n3 = mock_numeric("n3")
+        n4 = mock_numeric("n4")
+        n1.should_receive(:real?).any_number_of_times.and_return(r1)
+        n2.should_receive(:real?).any_number_of_times.and_return(r2)
+        n2.should_receive(:*).with(Complex(0, 1)).and_return(n3)
+        n1.should_receive(:+).with(n3).and_return(n4)
+        Complex(n1, n2).should equal(n4)
+      end
+    end
+  end
+
+  describe "when passed two Numerics and both respond to #real? with true" do
+    it "returns a Complex with the passed arguments as real and imaginary components respectively" 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(n1, n2)
+      result.real.should equal(n1)
+      result.imag.should equal(n2)
+    end
+  end
+
+  describe "when passed a single non-Numeric" do
+    it "coerces the passed argument using #to_c" do
+      n = mock("n")
+      c = Complex(0, 0)
+      n.should_receive(:to_c).and_return(c)
+      Complex(n).should equal(c)
+    end
+  end
+
+  describe "when passed a non-Numeric second argument" do
+    it "raises TypeError" do
+      lambda { Complex.send(@method, :sym, :sym) }.should raise_error(TypeError)
+      lambda { Complex.send(@method, 0,    :sym) }.should raise_error(TypeError)
+    end
+  end
+
+  describe "when passed nil" do
+    it "raises TypeError" do
+      lambda { Complex(nil) }.should raise_error(TypeError, "can't convert nil into Complex")
+      lambda { Complex(0, nil) }.should raise_error(TypeError, "can't convert nil into Complex")
+      lambda { Complex(nil, 0) }.should raise_error(TypeError, "can't convert nil into Complex")
+    end
+  end
 end