* string.c: Add instance methods to Symbol: succ, next, <=>,

  casecmp, =~, [], slice, length, size, empty?, match, upcase,
  downcase, capitalize and swapcase. [backport from 1.9]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@26222 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 43 insertions, 0 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 42350ba6e7..a19a78e605 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -89,4 +89,47 @@ class TestSymbol < Test::Unit::TestCase
       assert_equal ary_ids, ary.collect(&:object_id)
     end
   end
+
+  def test_call
+    o = Object.new
+    def o.foo(x, y); x + y; end
+
+    assert_equal(3, :foo.to_proc.call(o, 1, 2))
+    assert_raise(ArgumentError) { :foo.to_proc.call }
+  end
+
+  def test_succ
+    assert_equal(:fop, :foo.succ)
+  end
+
+  def test_cmp
+    assert_equal(0, :FoO <=> :FoO)
+    assert_equal(-1, :FoO <=> :fOO)
+    assert_equal(1, :fOO <=> :FoO)
+    assert_nil(:foo <=> "foo")
+  end
+
+  def test_casecmp
+    assert_equal(0, :FoO.casecmp(:fOO))
+    assert_equal(1, :FoO.casecmp(:BaR))
+    assert_equal(-1, :baR.casecmp(:FoO))
+    assert_nil(:foo.casecmp("foo"))
+  end
+
+  def test_length
+    assert_equal(3, :FoO.length)
+    assert_equal(3, :FoO.size)
+  end
+
+  def test_empty
+    assert_equal(false, :FoO.empty?)
+    assert_equal(true, :"".empty?)
+  end
+
+  def test_case
+    assert_equal(:FOO, :FoO.upcase)
+    assert_equal(:foo, :FoO.downcase)
+    assert_equal(:Foo, :foo.capitalize)
+    assert_equal(:fOo, :FoO.swapcase)
+  end
 end