added tag v1_9_0_4

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 224 insertions, 0 deletions

diff --git a/trunk/test/ruby/test_method.rb b/trunk/test/ruby/test_method.rb
new file mode 100644
index 0000000000..d978050dc8
--- /dev/null
+++ b/trunk/test/ruby/test_method.rb
@@ -0,0 +1,224 @@
+require 'test/unit'
+require_relative 'envutil'
+
+class TestMethod < Test::Unit::TestCase
+  def setup
+    @verbose = $VERBOSE
+    $VERBOSE = nil
+  end
+
+  def teardown
+    $VERBOSE = @verbose
+  end
+
+  def m0() end
+  def m1(a) end
+  def m2(a, b) end
+  def mo1(a = nil, &b) end
+  def mo2(a, b = nil) end
+  def mo3(*a) end
+  def mo4(a, *b, &c) end
+  def mo5(a, *b, c) end
+  def mo6(a, *b, c, &d) end
+
+  class Base
+    def foo() :base end
+  end
+  class Derived < Base
+    def foo() :derived end
+  end
+
+  def test_arity
+    assert_equal(0, method(:m0).arity)
+    assert_equal(1, method(:m1).arity)
+    assert_equal(2, method(:m2).arity)
+    assert_equal(-1, method(:mo1).arity)
+    assert_equal(-2, method(:mo2).arity)
+    assert_equal(-1, method(:mo3).arity)
+    assert_equal(-2, method(:mo4).arity)
+    assert_equal(-3, method(:mo5).arity)
+    assert_equal(-3, method(:mo6).arity)
+  end
+
+  def test_unbind
+    assert_equal(:derived, Derived.new.foo)
+    um = Derived.new.method(:foo).unbind
+    assert_instance_of(UnboundMethod, um)
+    Derived.class_eval do
+      def foo() :changed end
+    end
+    assert_equal(:changed, Derived.new.foo)
+    assert_equal(:derived, um.bind(Derived.new).call)
+    assert_raise(TypeError) do
+      um.bind(Base.new)
+    end
+  end
+
+  def test_callee
+    assert_equal(:test_callee, __method__)
+    assert_equal(:m, Class.new {def m; __method__; end}.new.m)
+    assert_equal(:m, Class.new {def m; tap{return __method__}; end}.new.m)
+    assert_equal(:m, Class.new {define_method(:m) {__method__}}.new.m)
+    assert_equal(:m, Class.new {define_method(:m) {tap{return __method__}}}.new.m)
+    assert_nil(eval("class TestCallee; __method__; end"))
+  end
+
+  def test_body
+    o = Object.new
+    def o.foo; end
+    assert_nothing_raised { RubyVM::InstructionSequence.disasm(o.method(:foo)) }
+  end
+
+  def test_new
+    c1 = Class.new
+    c1.class_eval { def foo; :foo; end }
+    c2 = Class.new(c1)
+    c2.class_eval { private :foo }
+    o = c2.new
+    o.extend(Module.new)
+    assert_raise(NameError) { o.method(:bar) }
+    assert_raise(NameError) { o.public_method(:foo) }
+    assert_equal(:foo, o.method(:foo).call)
+  end
+
+  def test_eq
+    o = Object.new
+    class << o
+      def foo; end
+      alias bar foo
+      def baz; end
+    end
+    assert_not_equal(o.method(:foo), nil)
+    m = o.method(:foo)
+    def m.foo; end
+    assert_not_equal(o.method(:foo), m)
+    assert_equal(o.method(:foo), o.method(:foo))
+    assert_equal(o.method(:foo), o.method(:bar))
+    assert_not_equal(o.method(:foo), o.method(:baz))
+  end
+
+  def test_hash
+    o = Object.new
+    def o.foo; end
+    assert_kind_of(Integer, o.method(:foo).hash)
+  end
+
+  def test_receiver_name_owner
+    o = Object.new
+    def o.foo; end
+    m = o.method(:foo)
+    assert_equal(o, m.receiver)
+    assert_equal(:foo, m.name)
+    assert_equal(class << o; self; end, m.owner)
+    assert_equal(:foo, m.unbind.name)
+    assert_equal(class << o; self; end, m.unbind.owner)
+  end
+
+  def test_instance_method
+    c = Class.new
+    c.class_eval do
+      def foo; :foo; end
+      private :foo
+    end
+    o = c.new
+    o.method(:foo).unbind
+    assert_raise(NoMethodError) { o.foo }
+    c.instance_method(:foo).bind(o)
+    assert_equal(:foo, o.instance_eval { foo })
+    assert_raise(NameError) { c.public_instance_method(:foo) }
+    def o.bar; end
+    m = o.method(:bar).unbind
+    assert_raise(TypeError) { m.bind(Object.new) }
+  end
+
+  def test_define_method
+    c = Class.new
+    c.class_eval { def foo; :foo; end }
+    o = c.new
+    def o.bar; :bar; end
+    assert_raise(TypeError) do
+      c.class_eval { define_method(:foo, :foo) }
+    end
+    assert_raise(ArgumentError) do
+      c.class_eval { define_method }
+    end
+    c2 = Class.new(c)
+    c2.class_eval { define_method(:baz, o.method(:foo)) }
+    assert_equal(:foo, c2.new.baz)
+    assert_raise(TypeError) do
+      Class.new.class_eval { define_method(:foo, o.method(:foo)) }
+    end
+    assert_raise(TypeError) do
+      Class.new.class_eval { define_method(:bar, o.method(:bar)) }
+    end
+
+    o = Object.new
+    def o.foo(c)
+      c.class_eval { define_method(:foo) }
+    end
+    c = Class.new
+    o.foo(c) { :foo }
+    assert_equal(:foo, c.new.foo)
+
+    o = Object.new
+    o.instance_eval { define_singleton_method(:foo) { :foo } }
+    assert_equal(:foo, o.foo)
+  end
+
+  def test_clone
+    o = Object.new
+    def o.foo; :foo; end
+    m = o.method(:foo)
+    def m.bar; :bar; end
+    assert_equal(:foo, m.clone.call)
+    assert_equal(:bar, m.clone.bar)
+  end
+
+  def test_call
+    o = Object.new
+    def o.foo; p 1; end
+    def o.bar(x); x; end
+    m = o.method(:foo)
+    m.taint
+    assert_raise(SecurityError) { m.call }
+  end
+
+  def test_inspect
+    o = Object.new
+    def o.foo; end
+    m = o.method(:foo)
+    assert_equal("#<Method: #{ o.inspect }.foo>", m.inspect)
+    m = o.method(:foo)
+    assert_equal("#<UnboundMethod: #{ class << o; self; end.inspect }#foo>", m.unbind.inspect)
+
+    c = Class.new
+    c.class_eval { def foo; end; }
+    m = c.new.method(:foo)
+    assert_equal("#<Method: #{ c.inspect }#foo>", m.inspect)
+    m = c.instance_method(:foo)
+    assert_equal("#<UnboundMethod: #{ c.inspect }#foo>", m.inspect)
+
+    c2 = Class.new(c)
+    c2.class_eval { private :foo }
+    m2 = c2.new.method(:foo)
+    assert_equal("#<Method: #{ c2.inspect }(#{ c.inspect })#foo>", m2.inspect)
+  end
+
+  def test_callee_top_level
+    assert_in_out_err([], "p __callee__", %w(nil), [])
+  end
+
+  def test_caller_negative_level
+    assert_raise(ArgumentError) { caller(-1) }
+  end
+
+  def test_attrset_ivar
+    c = Class.new
+    c.class_eval { attr_accessor :foo }
+    o = c.new
+    o.method(:foo=).call(42)
+    assert_equal(42, o.foo)
+    assert_raise(ArgumentError) { o.method(:foo=).call(1, 2, 3) }
+    assert_raise(ArgumentError) { o.method(:foo).call(1) }
+  end
+end