1 files changed, 83 insertions, 0 deletions
diff --git a/trunk/test/ruby/test_variable.rb b/trunk/test/ruby/test_variable.rb
new file mode 100644
index 0000000000..53cd151585
--- /dev/null
+++ b/trunk/test/ruby/test_variable.rb
@@ -0,0 +1,83 @@
+require 'test/unit'
+require_relative 'envutil'
+
+class TestVariable < Test::Unit::TestCase
+  class Gods
+    @@rule = "Uranus"
+    def ruler0
+      @@rule
+    end
+
+    def self.ruler1		# <= per method definition style
+      @@rule
+    end
+    class << self			# <= multiple method definition style
+      def ruler2
+	@@rule
+      end
+    end
+  end
+
+  module Olympians
+    @@rule ="Zeus"
+    def ruler3
+      @@rule
+    end
+  end
+
+  class Titans < Gods
+    @@rule = "Cronus"			# modifies @@rule in Gods
+    include Olympians
+    def ruler4
+      @@rule
+    end
+  end
+
+  def test_variable
+    assert_instance_of(Fixnum, $$)
+    
+    # read-only variable
+    assert_raises(NameError) do
+      $$ = 5
+    end
+
+    foobar = "foobar"
+    $_ = foobar
+    assert_equal(foobar, $_)
+
+    assert_equal("Cronus", Gods.new.ruler0)
+    assert_equal("Cronus", Gods.ruler1)
+    assert_equal("Cronus", Gods.ruler2)
+    assert_equal("Cronus", Titans.ruler1)
+    assert_equal("Cronus", Titans.ruler2)
+    atlas = Titans.new
+    assert_equal("Cronus", atlas.ruler0)
+    assert_equal("Zeus", atlas.ruler3)
+    assert_equal("Cronus", atlas.ruler4)
+  end
+
+  def test_local_variables
+    lvar = 1
+    assert_instance_of(Symbol, local_variables[0], "[ruby-dev:34008]")
+  end
+
+  def test_local_variables2
+    x = 1
+    proc do |y|
+      assert_equal([:x, :y], local_variables.sort)
+    end.call
+  end
+
+  def test_local_variables3
+    x = 1
+    proc do |y|
+      1.times do |z|
+        assert_equal([:x, :y, :z], local_variables.sort)
+      end
+    end.call
+  end
+
+  def test_global_variable_0
+    assert_in_out_err(["-e", "$0='t'*1000;print $0"], "", /\At+\z/, [])
+  end
+end