1 files changed, 45 insertions, 0 deletions
diff --git a/spec/rubyspec/core/numeric/to_c_spec.rb b/spec/rubyspec/core/numeric/to_c_spec.rb
new file mode 100644
index 0000000000..38452231b0
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+++ b/spec/rubyspec/core/numeric/to_c_spec.rb
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+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Numeric#to_c" do
+  before :all do
+    @numbers = [
+      0,
+      29871,
+      99999999999999**99,
+      -72628191273,
+      Rational(2,3),
+      Rational(1.898),
+      Rational(-238),
+      29282.2827,
+      -2927.00091,
+      0.0,
+      12.0,
+      Float::MAX,
+      infinity_value,
+      nan_value
+    ]
+  end
+
+  it "returns a Complex object" do
+    @numbers.each do |number|
+      number.to_c.should be_an_instance_of(Complex)
+    end
+  end
+
+  it "uses self as the real component" do
+    @numbers.each do |number|
+      real = number.to_c.real
+      if Float === number and number.nan?
+        real.nan?.should be_true
+      else
+        real.should == number
+      end
+    end
+  end
+
+  it "uses 0 as the imaginary component" do
+    @numbers.each do |number|
+      number.to_c.imag.should == 0
+    end
+  end
+end