merges r23718 from trunk into ruby_1_9_1.

--
	* complex.c (nucomp_coerce): accepts Complex instances.

	* rational.c (nurat_coerce): accepts Rational
	  instances. [ruby-core:23859]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@23793 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 14 insertions, 0 deletions

diff --git a/test/ruby/test_complex.rb b/test/ruby/test_complex.rb
index 74d6d5dd8..39a02044f 100644
--- a/test/ruby/test_complex.rb
+++ b/test/ruby/test_complex.rb
@@ -505,6 +505,14 @@ class Complex_Test < Test::Unit::TestCase
     end
   end
 
+  def test_coerce
+    assert_equal([Complex(2),Complex(1)], Complex(1).coerce(2))
+    assert_equal([Complex(2.2),Complex(1)], Complex(1).coerce(2.2))
+    assert_equal([Complex(Rational(2)),Complex(1)],
+		 Complex(1).coerce(Rational(2)))
+    assert_equal([Complex(2),Complex(1)], Complex(1).coerce(Complex(2)))
+  end
+
   def test_unify
     if @unify
       assert_instance_of(Fixnum, Complex(1,2) + Complex(-1,-2))
diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb
index cb7b58b41..8cacab9a0 100644
--- a/test/ruby/test_rational.rb
+++ b/test/ruby/test_rational.rb
@@ -704,6 +704,12 @@ class Rational_Test < Test::Unit::TestCase
     assert_equal(false, Rational(1) == '')
   end
 
+  def test_coerce
+    assert_equal([Rational(2),Rational(1)], Rational(1).coerce(2))
+    assert_equal([Rational(2.2),Rational(1)], Rational(1).coerce(2.2))
+    assert_equal([Rational(2),Rational(1)], Rational(1).coerce(Rational(2)))
+  end
+
   def test_unify
     if @unify
       assert_instance_of(Fixnum, Rational(1,2) + Rational(1,2))