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assert "M", "module M; end; p M"
assert "Module", "module M; end; p M.class"

assert "42", "x = module Foo; 42; end; p x"
assert "nil", "x = module Foo; end; p x"

assert '"hello world"', %{
module A; end

module B
def greetings
'hello'
end
end

module C
def greetings
super + ' world'
end
end

A.extend(B)
A.extend(C)
p A.greetings
}

assert '42', %{
module Foo
define_method('bar') do
42
end
end
class A
include Foo
end
p A.new.bar
}

assert ':ok', %{
module M; end
begin
M.new
p :ko
rescue NoMethodError
p :ok
end
}, :known_bug => true

assert ':ok', %{
M = Module.new
begin
M.new
p :ko
rescue NoMethodError
p :ok
end
}, :known_bug => true

assert ':ok', %{
module Bar
module Baz
def baz
p :nok
end
end
end
class Foo
def self.baz
p :ok
end
end
Foo.extend(Bar::Baz)
Foo.baz
}

assert ':ok', %{
module Bar
def baz
p :nok
end
end
class Foo
def self.baz
p :ok
end
end
Foo.extend(Bar)
Foo.baz
}

assert ':ok', %{
module Y
def foo
p :ok
end
end
module X
include Y
end
o = Object.new
o.extend X
o.foo
}

assert ':ok', %{
module M
def initialize; p :ok; end
end
class X; include M; end
X.new
}

assert ':ok', %{
module M
def foo
p :ok
end
end
class Class; include M; end
class X; end
X.foo
}

assert ':ok', %{
module M
def foo
p :ok
end
end
class Module; include M; end
module X; end
X.foo
}

assert ':ok', %{
module Mok
def foo
p :ok
end
end
class Module; include Mok; end
module Mko
def foo
p :ko
end
end
class Class; include Mko; end
module X; end
X.foo
}, :known_bug => true

assert ':ok', %{
module Mok
def foo
p :ok
end
end
class Class; include Mok; end
module Mko
def foo
p :ko
end
end
class Module; include Mko; end
class X; end
X.foo
}, :known_bug => true

assert ':ok', %{
module M
def include(*mod)
@mods ||= []
@mods.push(*mod)
end
def new(*args,&b)
obj = allocate
if @mods
@mods.each { |m| obj.extend(m) }
end
obj.send(:initialize,*args,&b)
obj
end
end
module M2
def foo; p :ok; end
end
class X
extend M
include M2
def foo; raise; end
end
X.new.foo
}

assert ':ok', %{
module M
def self.foo(v)
Module.new do
define_method(:inherited) do |klass|
super(klass)
p v
end
end
end
end
class X
extend M.foo(:ok)
end
class Y<X
end
}, :known_bug => true

assert ':ok', %{
m = Module.new do
define_method(:foo) { p :ok }
end
Class.new.extend(m).foo
}, :known_bug => true
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