* test/ruby: tests for ruby itself.

* test/ruby/test_*.rb: split sample/test.rb into 28 test/unit testcases.  some
  tests could not be translates...  search '!!' mark to see it.

* test/csv/test_csv.rb: should require 'csv', not '../lib/csv'.  test runner
  should set load path correctly.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_alias.rb

@@ -0,0 +1,42 @@
+require 'test/unit'
+
+$KCODE = 'none'
+
+class TestAlias < Test::Unit::TestCase
+  class Alias0
+    def foo; "foo" end
+  end
+  class Alias1<Alias0
+    alias bar foo
+    def foo; "foo+" + super end
+  end
+  class Alias2<Alias1
+    alias baz foo
+    undef foo
+  end
+  class Alias3<Alias2
+    def foo
+      defined? super
+    end
+    def bar
+      defined? super
+    end
+    def quux
+      defined? super
+    end
+  end
+
+  def test_alias
+    x = Alias2.new
+    assert(x.bar == "foo")
+    assert(x.baz == "foo+foo")
+    
+    # test_check for cache
+    assert(x.baz == "foo+foo")
+    
+    x = Alias3.new
+    assert(!x.foo)
+    assert(x.bar)
+    assert(!x.quux)
+  end
+end