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ruby--ruby/test/ruby/test_proc.rb
Koichi Sasada 182a408c2c
change Proc#to_s format ('@...' -> ' ...') (#2362)
Now Proc#to_s returns
"#<Proc:0x00000237a0f5f170@t.rb:1>".
However, it is convenient to select a file name by (double-)clicking
on some terminals by separating ' ' instead of '@' like
"#<Proc:0x00000237a0f5f170 t.rb:1>"
[Feature #16101]
2019-08-14 16:25:15 +09:00

1514 lines
55 KiB
Ruby

# frozen_string_literal: false
require 'test/unit'
class TestProc < Test::Unit::TestCase
def setup
@verbose = $VERBOSE
$VERBOSE = nil
end
def teardown
$VERBOSE = @verbose
end
def test_proc
p1 = proc{|i| i}
assert_equal(2, p1.call(2))
assert_equal(3, p1.call(3))
p1 = proc{|i| i*2}
assert_equal(4, p1.call(2))
assert_equal(6, p1.call(3))
p2 = nil
x=0
proc{
iii=5 # nested local variable
p1 = proc{|i|
iii = i
}
p2 = proc {
x = iii # nested variables shared by procs
}
# scope of nested variables
assert(defined?(iii))
}.call
assert(!defined?(iii)) # out of scope
loop{iii=iii=5; assert(eval("defined? iii")); break}
loop {
iii=iii = 10
def self.dyna_var_check
loop {
assert(!defined?(iii))
break
}
end
dyna_var_check
break
}
p1.call(5)
p2.call
assert_equal(5, x)
end
def assert_arity(n)
meta = class << self; self; end
meta.class_eval {define_method(:foo, Proc.new)}
assert_equal(n, method(:foo).arity)
end
def test_arity
assert_equal(0, proc{}.arity)
assert_equal(0, proc{||}.arity)
assert_equal(1, proc{|x|}.arity)
assert_equal(0, proc{|x=1|}.arity)
assert_equal(2, proc{|x, y|}.arity)
assert_equal(1, proc{|x=0, y|}.arity)
assert_equal(0, proc{|x=0, y=0|}.arity)
assert_equal(1, proc{|x, y=0|}.arity)
assert_equal(-2, proc{|x, *y|}.arity)
assert_equal(-1, proc{|x=0, *y|}.arity)
assert_equal(-1, proc{|*x|}.arity)
assert_equal(-1, proc{|*|}.arity)
assert_equal(-3, proc{|x, *y, z|}.arity)
assert_equal(-2, proc{|x=0, *y, z|}.arity)
assert_equal(2, proc{|(x, y), z|[x,y]}.arity)
assert_equal(1, proc{|(x, y), z=0|[x,y]}.arity)
assert_equal(-4, proc{|x, *y, z, a|}.arity)
assert_equal(0, proc{|**|}.arity)
assert_equal(0, proc{|**o|}.arity)
assert_equal(1, proc{|x, **o|}.arity)
assert_equal(0, proc{|x=0, **o|}.arity)
assert_equal(1, proc{|x, y=0, **o|}.arity)
assert_equal(2, proc{|x, y=0, z, **o|}.arity)
assert_equal(-3, proc{|x, y=0, *z, w, **o|}.arity)
assert_equal(2, proc{|x, y=0, z, a:1|}.arity)
assert_equal(3, proc{|x, y=0, z, a:|}.arity)
assert_equal(-4, proc{|x, y, *rest, a:, b:, c:|}.arity)
assert_equal(3, proc{|x, y=0, z, a:, **o|}.arity)
assert_equal(0, lambda{}.arity)
assert_equal(0, lambda{||}.arity)
assert_equal(1, lambda{|x|}.arity)
assert_equal(-1, lambda{|x=1|}.arity) # different from proc
assert_equal(2, lambda{|x, y|}.arity)
assert_equal(-2, lambda{|x=0, y|}.arity) # different from proc
assert_equal(-1, lambda{|x=0, y=0|}.arity) # different from proc
assert_equal(-2, lambda{|x, y=0|}.arity) # different from proc
assert_equal(-2, lambda{|x, *y|}.arity)
assert_equal(-1, lambda{|x=0, *y|}.arity)
assert_equal(-1, lambda{|*x|}.arity)
assert_equal(-1, lambda{|*|}.arity)
assert_equal(-3, lambda{|x, *y, z|}.arity)
assert_equal(-2, lambda{|x=0, *y, z|}.arity)
assert_equal(2, lambda{|(x, y), z|[x,y]}.arity)
assert_equal(-2, lambda{|(x, y), z=0|[x,y]}.arity)
assert_equal(-4, lambda{|x, *y, z, a|}.arity)
assert_equal(-1, lambda{|**|}.arity)
assert_equal(-1, lambda{|**o|}.arity)
assert_equal(-2, lambda{|x, **o|}.arity)
assert_equal(-1, lambda{|x=0, **o|}.arity)
assert_equal(-2, lambda{|x, y=0, **o|}.arity)
assert_equal(-3, lambda{|x, y=0, z, **o|}.arity)
assert_equal(-3, lambda{|x, y=0, *z, w, **o|}.arity)
assert_arity(0) {}
assert_arity(0) {||}
assert_arity(1) {|x|}
assert_arity(2) {|x, y|}
assert_arity(-2) {|x, *y|}
assert_arity(-3) {|x, *y, z|}
assert_arity(-1) {|*x|}
assert_arity(-1) {|*|}
assert_arity(-1) {|**o|}
assert_arity(-1) {|**|}
assert_arity(-2) {|x, *y, **|}
assert_arity(-3) {|x, *y, z, **|}
end
def m(x)
lambda { x }
end
def test_eq
a = m(1)
b = m(2)
assert_not_equal(a, b, "[ruby-dev:22592]")
assert_not_equal(a.call, b.call, "[ruby-dev:22592]")
assert_not_equal(proc {||}, proc {|x,y|}, "[ruby-dev:22599]")
a = lambda {|x| lambda {} }.call(1)
b = lambda {}
assert_not_equal(a, b, "[ruby-dev:22601]")
end
def test_block_par
assert_equal(10, Proc.new{|&b| b.call(10)}.call {|x| x})
assert_equal(12, Proc.new{|a,&b| b.call(a)}.call(12) {|x| x})
end
def test_safe
safe = $SAFE
c = Class.new
x = c.new
p = proc {
$SAFE += 1
proc {$SAFE}
}.call
assert_equal(safe + 1, $SAFE)
assert_equal(safe + 1, p.call)
assert_equal(safe + 1, $SAFE)
$SAFE = 0
c.class_eval {define_method(:safe, p)}
assert_equal(safe, x.safe)
$SAFE = 0
p = proc {$SAFE += 1}
assert_equal(safe + 1, p.call)
assert_equal(safe + 1, $SAFE)
$SAFE = 0
c.class_eval {define_method(:inc, p)}
assert_equal(safe + 1, proc {x.inc; $SAFE}.call)
assert_equal(safe + 1, $SAFE)
$SAFE = 0
assert_equal(safe + 1, proc {x.method(:inc).call; $SAFE}.call)
assert_equal(safe + 1, $SAFE)
$SAFE = 0
assert_equal(safe + 1, proc {x.method(:inc).to_proc.call; $SAFE}.call)
assert_equal(safe + 1, $SAFE)
ensure
$SAFE = 0
end
def m2
"OK"
end
def block
method(:m2).to_proc
end
def m1(var)
var
end
def m_block_given?
m1(block_given?)
end
# [yarv-dev:777] block made by Method#to_proc
def test_method_to_proc
b = block()
assert_equal "OK", b.call
b = b.binding
assert_instance_of(Binding, b, '[ruby-core:25589]')
bug10432 = '[ruby-core:65919] [Bug #10432]'
assert_same(self, b.receiver, bug10432)
assert_not_send [b, :local_variable_defined?, :value]
assert_raise(NameError) {
b.local_variable_get(:value)
}
assert_equal 42, b.local_variable_set(:value, 42)
assert_send [b, :local_variable_defined?, :value]
assert_equal 42, b.local_variable_get(:value)
end
def test_block_given_method
m = method(:m_block_given?)
assert(!m.call, "without block")
assert(m.call {}, "with block")
assert(!m.call, "without block second")
end
def test_block_given_method_to_proc
bug8341 = '[Bug #8341]'
m = method(:m_block_given?).to_proc
assert(!m.call, "#{bug8341} without block")
assert(m.call {}, "#{bug8341} with block")
assert(!m.call, "#{bug8341} without block second")
end
def test_block_persist_between_calls
bug8341 = '[Bug #8341]'
o = Object.new
def o.m1(top=true)
if top
[block_given?, @m.call(false)]
else
block_given?
end
end
m = o.method(:m1).to_proc
o.instance_variable_set(:@m, m)
assert_equal([true, false], m.call {}, "#{bug8341} nested with block")
assert_equal([false, false], m.call, "#{bug8341} nested without block")
end
def test_curry_proc
b = proc {|x, y, z| (x||0) + (y||0) + (z||0) }
assert_equal(6, b.curry[1][2][3])
assert_equal(6, b.curry[1, 2][3, 4])
assert_equal(6, b.curry(5)[1][2][3][4][5])
assert_equal(6, b.curry(5)[1, 2][3, 4][5])
assert_equal(1, b.curry(1)[1])
end
def test_curry_proc_splat
b = proc {|x, y, z, *w| (x||0) + (y||0) + (z||0) + w.inject(0, &:+) }
assert_equal(6, b.curry[1][2][3])
assert_equal(10, b.curry[1, 2][3, 4])
assert_equal(15, b.curry(5)[1][2][3][4][5])
assert_equal(15, b.curry(5)[1, 2][3, 4][5])
assert_equal(1, b.curry(1)[1])
end
def test_curry_lambda
b = lambda {|x, y, z| (x||0) + (y||0) + (z||0) }
assert_equal(6, b.curry[1][2][3])
assert_raise(ArgumentError) { b.curry[1, 2][3, 4] }
assert_raise(ArgumentError) { b.curry(5) }
assert_raise(ArgumentError) { b.curry(1) }
end
def test_curry_lambda_splat
b = lambda {|x, y, z, *w| (x||0) + (y||0) + (z||0) + w.inject(0, &:+) }
assert_equal(6, b.curry[1][2][3])
assert_equal(10, b.curry[1, 2][3, 4])
assert_equal(15, b.curry(5)[1][2][3][4][5])
assert_equal(15, b.curry(5)[1, 2][3, 4][5])
assert_raise(ArgumentError) { b.curry(1) }
end
def test_curry_no_arguments
b = proc { :foo }
assert_equal(:foo, b.curry[])
end
def test_curry_given_blocks
b = lambda {|x, y, &blk| blk.call(x + y) }.curry
b = b.call(2) { raise }
b = b.call(3) {|x| x + 4 }
assert_equal(9, b)
end
def test_lambda?
l = proc {}
assert_equal(false, l.lambda?)
assert_equal(false, l.curry.lambda?, '[ruby-core:24127]')
assert_equal(false, proc(&l).lambda?)
assert_equal(false, lambda(&l).lambda?)
assert_equal(false, Proc.new(&l).lambda?)
l = lambda {}
assert_equal(true, l.lambda?)
assert_equal(true, l.curry.lambda?, '[ruby-core:24127]')
assert_equal(true, proc(&l).lambda?)
assert_equal(true, lambda(&l).lambda?)
assert_equal(true, Proc.new(&l).lambda?)
end
def test_curry_ski_fib
s = proc {|f, g, x| f[x][g[x]] }.curry
k = proc {|x, y| x }.curry
i = proc {|x| x }.curry
fib = []
inc = proc {|x| fib[-1] += 1; x }.curry
ret = proc {|x| throw :end if fib.size > 10; fib << 0; x }.curry
catch(:end) do
s[
s[s[i][i]][k[i]]
][
k[inc]
][
s[
s[
k[s]
][
s[k[s[k[s]]]
][
s[s[k[s]][s[k[s[k[ret]]]][s[k[s[i]]][k]]]][k]]
]
][
k[s[k[s]][k]]
]
]
end
assert_equal(fib, [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89])
end
def test_curry_passed_block
a = lambda {|x, y, &b| b }
b = a.curry[1]
assert_not_nil(b.call(2){}, '[ruby-core:15551]: passed block to curried block')
end
def test_curry_instance_exec
a = lambda { |x, y| [x + y, self] }
b = a.curry.call(1)
result = instance_exec 2, &b
assert_equal(3, result[0])
assert_equal(self, result[1])
end
def test_curry_optional_params
obj = Object.new
def obj.foo(a, b=42); end
assert_raise(ArgumentError) { obj.method(:foo).to_proc.curry(3) }
assert_raise(ArgumentError) { ->(a, b=42){}.curry(3) }
end
def test_dup_clone
b = proc {|x| x + "bar" }
class << b; attr_accessor :foo; end
bd = b.dup
assert_equal("foobar", bd.call("foo"))
assert_raise(NoMethodError) { bd.foo = :foo }
assert_raise(NoMethodError) { bd.foo }
bc = b.clone
assert_equal("foobar", bc.call("foo"))
bc.foo = :foo
assert_equal(:foo, bc.foo)
end
def test_binding
b = proc {|x, y, z| proc {}.binding }.call(1, 2, 3)
class << b; attr_accessor :foo; end
bd = b.dup
assert_equal([1, 2, 3], bd.eval("[x, y, z]"))
assert_raise(NoMethodError) { bd.foo = :foo }
assert_raise(NoMethodError) { bd.foo }
bc = b.clone
assert_equal([1, 2, 3], bc.eval("[x, y, z]"))
bc.foo = :foo
assert_equal(:foo, bc.foo)
b = nil
1.times { x, y, z = 1, 2, 3; [x,y,z]; b = binding }
assert_equal([1, 2, 3], b.eval("[x, y, z]"))
end
def test_binding_source_location
b, expected_location = binding, [__FILE__, __LINE__]
assert_equal(expected_location, b.source_location)
file, lineno = method(:source_location_test).to_proc.binding.source_location
assert_match(/^#{ Regexp.quote(__FILE__) }$/, file)
assert_equal(@@line_of_source_location_test, lineno, 'Bug #2427')
end
def test_proc_lambda
assert_raise(ArgumentError) { proc }
assert_raise(ArgumentError) { lambda }
o = Object.new
def o.foo
b = nil
1.times { b = lambda }
b
end
assert_raise(ArgumentError) {o.foo { :foo }.call}
def o.foo(&b)
b = nil
1.times { b = lambda }
b
end
assert_raise(ArgumentError) {o.foo { :foo }.call}
end
def test_arity2
assert_equal(0, method(:proc).to_proc.arity)
assert_equal(-1, proc {}.curry.arity)
c = Class.new
c.class_eval { attr_accessor :foo }
assert_equal(1, c.new.method(:foo=).to_proc.arity)
end
def test_proc_location
t = Thread.new { sleep }
assert_raise(ThreadError) { t.instance_eval { initialize { } } }
t.kill
t.join
end
def test_to_proc
b = proc { :foo }
assert_equal(:foo, b.to_proc.call)
end
def test_localjump_error
o = o = Object.new
def foo; yield; end
exc = foo rescue $!
assert_nil(exc.exit_value)
assert_equal(:noreason, exc.reason)
end
def test_curry_binding
assert_raise(ArgumentError) { proc {}.curry.binding }
end
def test_proc_args_plain
pr = proc {|a,b,c,d,e|
[a,b,c,d,e]
}
assert_equal [nil,nil,nil,nil,nil], pr.call()
assert_equal [1,nil,nil,nil,nil], pr.call(1)
assert_equal [1,2,nil,nil,nil], pr.call(1,2)
assert_equal [1,2,3,nil,nil], pr.call(1,2,3)
assert_equal [1,2,3,4,nil], pr.call(1,2,3,4)
assert_equal [1,2,3,4,5], pr.call(1,2,3,4,5)
assert_equal [1,2,3,4,5], pr.call(1,2,3,4,5,6)
assert_equal [nil,nil,nil,nil,nil], pr.call([])
assert_equal [1,nil,nil,nil,nil], pr.call([1])
assert_equal [1,2,nil,nil,nil], pr.call([1,2])
assert_equal [1,2,3,nil,nil], pr.call([1,2,3])
assert_equal [1,2,3,4,nil], pr.call([1,2,3,4])
assert_equal [1,2,3,4,5], pr.call([1,2,3,4,5])
assert_equal [1,2,3,4,5], pr.call([1,2,3,4,5,6])
r = proc{|a| a}.call([1,2,3])
assert_equal [1,2,3], r
r = proc{|a,| a}.call([1,2,3])
assert_equal 1, r
r = proc{|a,| a}.call([])
assert_equal nil, r
end
def test_proc_args_rest
pr = proc {|a,b,c,*d|
[a,b,c,d]
}
assert_equal [nil,nil,nil,[]], pr.call()
assert_equal [1,nil,nil,[]], pr.call(1)
assert_equal [1,2,nil,[]], pr.call(1,2)
assert_equal [1,2,3,[]], pr.call(1,2,3)
assert_equal [1,2,3,[4]], pr.call(1,2,3,4)
assert_equal [1,2,3,[4,5]], pr.call(1,2,3,4,5)
assert_equal [1,2,3,[4,5,6]], pr.call(1,2,3,4,5,6)
assert_equal [nil,nil,nil,[]], pr.call([])
assert_equal [1,nil,nil,[]], pr.call([1])
assert_equal [1,2,nil,[]], pr.call([1,2])
assert_equal [1,2,3,[]], pr.call([1,2,3])
assert_equal [1,2,3,[4]], pr.call([1,2,3,4])
assert_equal [1,2,3,[4,5]], pr.call([1,2,3,4,5])
assert_equal [1,2,3,[4,5,6]], pr.call([1,2,3,4,5,6])
r = proc{|*a| a}.call([1,2,3])
assert_equal [[1,2,3]], r
end
def test_proc_args_pos_rest_post
pr = proc {|a,b,*c,d,e|
[a,b,c,d,e]
}
assert_equal [nil, nil, [], nil, nil], pr.call()
assert_equal [1, nil, [], nil, nil], pr.call(1)
assert_equal [1, 2, [], nil, nil], pr.call(1,2)
assert_equal [1, 2, [], 3, nil], pr.call(1,2,3)
assert_equal [1, 2, [], 3, 4], pr.call(1,2,3,4)
assert_equal [1, 2, [3], 4, 5], pr.call(1,2,3,4,5)
assert_equal [1, 2, [3, 4], 5, 6], pr.call(1,2,3,4,5,6)
assert_equal [1, 2, [3, 4, 5], 6,7], pr.call(1,2,3,4,5,6,7)
assert_equal [nil, nil, [], nil, nil], pr.call([])
assert_equal [1, nil, [], nil, nil], pr.call([1])
assert_equal [1, 2, [], nil, nil], pr.call([1,2])
assert_equal [1, 2, [], 3, nil], pr.call([1,2,3])
assert_equal [1, 2, [], 3, 4], pr.call([1,2,3,4])
assert_equal [1, 2, [3], 4, 5], pr.call([1,2,3,4,5])
assert_equal [1, 2, [3, 4], 5, 6], pr.call([1,2,3,4,5,6])
assert_equal [1, 2, [3, 4, 5], 6,7], pr.call([1,2,3,4,5,6,7])
end
def test_proc_args_rest_post
pr = proc {|*a,b,c|
[a,b,c]
}
assert_equal [[], nil, nil], pr.call()
assert_equal [[], 1, nil], pr.call(1)
assert_equal [[], 1, 2], pr.call(1,2)
assert_equal [[1], 2, 3], pr.call(1,2,3)
assert_equal [[1, 2], 3, 4], pr.call(1,2,3,4)
assert_equal [[1, 2, 3], 4, 5], pr.call(1,2,3,4,5)
assert_equal [[1, 2, 3, 4], 5, 6], pr.call(1,2,3,4,5,6)
assert_equal [[1, 2, 3, 4, 5], 6,7], pr.call(1,2,3,4,5,6,7)
assert_equal [[], nil, nil], pr.call([])
assert_equal [[], 1, nil], pr.call([1])
assert_equal [[], 1, 2], pr.call([1,2])
assert_equal [[1], 2, 3], pr.call([1,2,3])
assert_equal [[1, 2], 3, 4], pr.call([1,2,3,4])
assert_equal [[1, 2, 3], 4, 5], pr.call([1,2,3,4,5])
assert_equal [[1, 2, 3, 4], 5, 6], pr.call([1,2,3,4,5,6])
assert_equal [[1, 2, 3, 4, 5], 6,7], pr.call([1,2,3,4,5,6,7])
end
def test_proc_args_pos_opt
pr = proc {|a,b,c=:c|
[a,b,c]
}
assert_equal [nil, nil, :c], pr.call()
assert_equal [1, nil, :c], pr.call(1)
assert_equal [1, 2, :c], pr.call(1,2)
assert_equal [1, 2, 3], pr.call(1,2,3)
assert_equal [1, 2, 3], pr.call(1,2,3,4)
assert_equal [1, 2, 3], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3], pr.call(1,2,3,4,5,6)
assert_equal [nil, nil, :c], pr.call([])
assert_equal [1, nil, :c], pr.call([1])
assert_equal [1, 2, :c], pr.call([1,2])
assert_equal [1, 2, 3], pr.call([1,2,3])
assert_equal [1, 2, 3], pr.call([1,2,3,4])
assert_equal [1, 2, 3], pr.call([1,2,3,4,5])
assert_equal [1, 2, 3], pr.call([1,2,3,4,5,6])
end
def test_proc_args_opt
pr = proc {|a=:a,b=:b,c=:c|
[a,b,c]
}
assert_equal [:a, :b, :c], pr.call()
assert_equal [1, :b, :c], pr.call(1)
assert_equal [1, 2, :c], pr.call(1,2)
assert_equal [1, 2, 3], pr.call(1,2,3)
assert_equal [1, 2, 3], pr.call(1,2,3,4)
assert_equal [1, 2, 3], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3], pr.call(1,2,3,4,5,6)
assert_equal [:a, :b, :c], pr.call([])
assert_equal [1, :b, :c], pr.call([1])
assert_equal [1, 2, :c], pr.call([1,2])
assert_equal [1, 2, 3], pr.call([1,2,3])
assert_equal [1, 2, 3], pr.call([1,2,3,4])
assert_equal [1, 2, 3], pr.call([1,2,3,4,5])
assert_equal [1, 2, 3], pr.call([1,2,3,4,5,6])
end
def test_proc_args_opt_single
bug7621 = '[ruby-dev:46801]'
pr = proc {|a=:a|
a
}
assert_equal :a, pr.call()
assert_equal 1, pr.call(1)
assert_equal 1, pr.call(1,2)
assert_equal [], pr.call([]), bug7621
assert_equal [1], pr.call([1]), bug7621
assert_equal [1, 2], pr.call([1,2]), bug7621
assert_equal [1, 2, 3], pr.call([1,2,3]), bug7621
assert_equal [1, 2, 3, 4], pr.call([1,2,3,4]), bug7621
end
def test_proc_args_pos_opt_post
pr = proc {|a,b,c=:c,d,e|
[a,b,c,d,e]
}
assert_equal [nil, nil, :c, nil, nil], pr.call()
assert_equal [1, nil, :c, nil, nil], pr.call(1)
assert_equal [1, 2, :c, nil, nil], pr.call(1,2)
assert_equal [1, 2, :c, 3, nil], pr.call(1,2,3)
assert_equal [1, 2, :c, 3, 4], pr.call(1,2,3,4)
assert_equal [1, 2, 3, 4, 5], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, 5], pr.call(1,2,3,4,5,6)
assert_equal [nil, nil, :c, nil, nil], pr.call([])
assert_equal [1, nil, :c, nil, nil], pr.call([1])
assert_equal [1, 2, :c, nil, nil], pr.call([1,2])
assert_equal [1, 2, :c, 3, nil], pr.call([1,2,3])
assert_equal [1, 2, :c, 3, 4], pr.call([1,2,3,4])
assert_equal [1, 2, 3, 4, 5], pr.call([1,2,3,4,5])
assert_equal [1, 2, 3, 4, 5], pr.call([1,2,3,4,5,6])
end
def test_proc_args_opt_post
pr = proc {|a=:a,b=:b,c=:c,d,e|
[a,b,c,d,e]
}
assert_equal [:a, :b, :c, nil, nil], pr.call()
assert_equal [:a, :b, :c, 1, nil], pr.call(1)
assert_equal [:a, :b, :c, 1, 2], pr.call(1,2)
assert_equal [1, :b, :c, 2, 3], pr.call(1,2,3)
assert_equal [1, 2, :c, 3, 4], pr.call(1,2,3,4)
assert_equal [1, 2, 3, 4, 5], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, 5], pr.call(1,2,3,4,5,6)
assert_equal [:a, :b, :c, nil, nil], pr.call([])
assert_equal [:a, :b, :c, 1, nil], pr.call([1])
assert_equal [:a, :b, :c, 1, 2], pr.call([1,2])
assert_equal [1, :b, :c, 2, 3], pr.call([1,2,3])
assert_equal [1, 2, :c, 3, 4], pr.call([1,2,3,4])
assert_equal [1, 2, 3, 4, 5], pr.call([1,2,3,4,5])
assert_equal [1, 2, 3, 4, 5], pr.call([1,2,3,4,5,6])
end
def test_proc_args_pos_opt_rest
pr = proc {|a,b,c=:c,*d|
[a,b,c,d]
}
assert_equal [nil, nil, :c, []], pr.call()
assert_equal [1, nil, :c, []], pr.call(1)
assert_equal [1, 2, :c, []], pr.call(1,2)
assert_equal [1, 2, 3, []], pr.call(1,2,3)
assert_equal [1, 2, 3, [4]], pr.call(1,2,3,4)
assert_equal [1, 2, 3, [4, 5]], pr.call(1,2,3,4,5)
assert_equal [nil, nil, :c, []], pr.call([])
assert_equal [1, nil, :c, []], pr.call([1])
assert_equal [1, 2, :c, []], pr.call([1,2])
assert_equal [1, 2, 3, []], pr.call([1,2,3])
assert_equal [1, 2, 3, [4]], pr.call([1,2,3,4])
assert_equal [1, 2, 3, [4, 5]], pr.call([1,2,3,4,5])
end
def test_proc_args_opt_rest
pr = proc {|a=:a,b=:b,c=:c,*d|
[a,b,c,d]
}
assert_equal [:a, :b, :c, []], pr.call()
assert_equal [1, :b, :c, []], pr.call(1)
assert_equal [1, 2, :c, []], pr.call(1,2)
assert_equal [1, 2, 3, []], pr.call(1,2,3)
assert_equal [1, 2, 3, [4]], pr.call(1,2,3,4)
assert_equal [1, 2, 3, [4, 5]], pr.call(1,2,3,4,5)
assert_equal [:a, :b, :c, []], pr.call([])
assert_equal [1, :b, :c, []], pr.call([1])
assert_equal [1, 2, :c, []], pr.call([1,2])
assert_equal [1, 2, 3, []], pr.call([1,2,3])
assert_equal [1, 2, 3, [4]], pr.call([1,2,3,4])
assert_equal [1, 2, 3, [4, 5]], pr.call([1,2,3,4,5])
end
def test_proc_args_pos_opt_rest_post
pr = proc {|a,b,c=:c,*d,e|
[a,b,c,d,e]
}
assert_equal [nil, nil, :c, [], nil], pr.call()
assert_equal [1, nil, :c, [], nil], pr.call(1)
assert_equal [1, 2, :c, [], nil], pr.call(1,2)
assert_equal [1, 2, :c, [], 3], pr.call(1,2,3)
assert_equal [1, 2, 3, [], 4], pr.call(1,2,3,4)
assert_equal [1, 2, 3, [4], 5], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, [4,5], 6], pr.call(1,2,3,4,5,6)
assert_equal [nil, nil, :c, [], nil], pr.call([])
assert_equal [1, nil, :c, [], nil], pr.call([1])
assert_equal [1, 2, :c, [], nil], pr.call([1,2])
assert_equal [1, 2, :c, [], 3], pr.call([1,2,3])
assert_equal [1, 2, 3, [], 4], pr.call([1,2,3,4])
assert_equal [1, 2, 3, [4], 5], pr.call([1,2,3,4,5])
assert_equal [1, 2, 3, [4,5], 6], pr.call([1,2,3,4,5,6])
end
def test_proc_args_opt_rest_post
pr = proc {|a=:a,b=:b,c=:c,*d,e|
[a,b,c,d,e]
}
assert_equal [:a, :b, :c, [], nil], pr.call()
assert_equal [:a, :b, :c, [], 1], pr.call(1)
assert_equal [1, :b, :c, [], 2], pr.call(1,2)
assert_equal [1, 2, :c, [], 3], pr.call(1,2,3)
assert_equal [1, 2, 3, [], 4], pr.call(1,2,3,4)
assert_equal [1, 2, 3, [4], 5], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, [4,5], 6], pr.call(1,2,3,4,5,6)
assert_equal [:a, :b, :c, [], nil], pr.call([])
assert_equal [:a, :b, :c, [], 1], pr.call([1])
assert_equal [1, :b, :c, [], 2], pr.call([1,2])
assert_equal [1, 2, :c, [], 3], pr.call([1,2,3])
assert_equal [1, 2, 3, [], 4], pr.call([1,2,3,4])
assert_equal [1, 2, 3, [4], 5], pr.call([1,2,3,4,5])
assert_equal [1, 2, 3, [4,5], 6], pr.call([1,2,3,4,5,6])
end
def test_proc_args_pos_block
pr = proc {|a,b,&c|
[a, b, c.class, c&&c.call(:x)]
}
assert_equal [nil, nil, NilClass, nil], pr.call()
assert_equal [1, nil, NilClass, nil], pr.call(1)
assert_equal [1, 2, NilClass, nil], pr.call(1,2)
assert_equal [1, 2, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, NilClass, nil], pr.call(1,2,3,4)
assert_equal [nil, nil, NilClass, nil], pr.call([])
assert_equal [1, nil, NilClass, nil], pr.call([1])
assert_equal [1, 2, NilClass, nil], pr.call([1,2])
assert_equal [1, 2, NilClass, nil], pr.call([1,2,3])
assert_equal [1, 2, NilClass, nil], pr.call([1,2,3,4])
assert_equal [nil, nil, Proc, :proc], (pr.call(){ :proc })
assert_equal [1, nil, Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [nil, nil, Proc, :x], (pr.call(){|x| x})
assert_equal [1, nil, Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
end
def test_proc_args_pos_rest_block
pr = proc {|a,b,*c,&d|
[a, b, c, d.class, d&&d.call(:x)]
}
assert_equal [nil, nil, [], NilClass, nil], pr.call()
assert_equal [1, nil, [], NilClass, nil], pr.call(1)
assert_equal [1, 2, [], NilClass, nil], pr.call(1,2)
assert_equal [1, 2, [3], NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, [3,4], NilClass, nil], pr.call(1,2,3,4)
assert_equal [nil, nil, [], Proc, :proc], (pr.call(){ :proc })
assert_equal [1, nil, [], Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, [], Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, [3], Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, [3,4], Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [nil, nil, [], Proc, :x], (pr.call(){|x| x})
assert_equal [1, nil, [], Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, [], Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, [3], Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, [3,4], Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
end
def test_proc_args_rest_block
pr = proc {|*c,&d|
[c, d.class, d&&d.call(:x)]
}
assert_equal [[], NilClass, nil], pr.call()
assert_equal [[1], NilClass, nil], pr.call(1)
assert_equal [[1, 2], NilClass, nil], pr.call(1,2)
assert_equal [[], Proc, :proc], (pr.call(){ :proc })
assert_equal [[1], Proc, :proc], (pr.call(1){ :proc })
assert_equal [[1, 2], Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [[], Proc, :x], (pr.call(){|x| x})
assert_equal [[1], Proc, :x], (pr.call(1){|x| x})
assert_equal [[1, 2], Proc, :x], (pr.call(1, 2){|x| x})
end
def test_proc_args_pos_rest_post_block
pr = proc {|a,b,*c,d,e,&f|
[a, b, c, d, e, f.class, f&&f.call(:x)]
}
assert_equal [nil, nil, [], nil, nil, NilClass, nil], pr.call()
assert_equal [1, nil, [], nil, nil, NilClass, nil], pr.call(1)
assert_equal [1, 2, [], nil, nil, NilClass, nil], pr.call(1,2)
assert_equal [1, 2, [], 3, nil, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, [], 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, [3], 4, 5, NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [1, 2, [3,4], 5, 6, NilClass, nil], pr.call(1,2,3,4,5,6)
assert_equal [nil, nil, [], nil, nil, Proc, :proc], (pr.call(){ :proc })
assert_equal [1, nil, [], nil, nil, Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, [], nil, nil, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, [], 3, nil, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, [], 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, [3], 4, 5, Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [1, 2, [3,4], 5, 6, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6){ :proc })
assert_equal [nil, nil, [], nil, nil, Proc, :x], (pr.call(){|x| x})
assert_equal [1, nil, [], nil, nil, Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, [], nil, nil, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, [], 3, nil, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, [], 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, [3], 4, 5, Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
assert_equal [1, 2, [3,4], 5, 6, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6){|x| x})
end
def test_proc_args_rest_post_block
pr = proc {|*c,d,e,&f|
[c, d, e, f.class, f&&f.call(:x)]
}
assert_equal [[], nil, nil, NilClass, nil], pr.call()
assert_equal [[], 1, nil, NilClass, nil], pr.call(1)
assert_equal [[], 1, 2, NilClass, nil], pr.call(1,2)
assert_equal [[1], 2, 3, NilClass, nil], pr.call(1,2,3)
assert_equal [[1, 2], 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [[], nil, nil, Proc, :proc], (pr.call(){ :proc })
assert_equal [[], 1, nil, Proc, :proc], (pr.call(1){ :proc })
assert_equal [[], 1, 2, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [[1], 2, 3, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [[1, 2], 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [[], nil, nil, Proc, :x], (pr.call(){|x| x})
assert_equal [[], 1, nil, Proc, :x], (pr.call(1){|x| x})
assert_equal [[], 1, 2, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [[1], 2, 3, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [[1, 2], 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
end
def test_proc_args_pos_opt_block
pr = proc {|a,b,c=:c,d=:d,&e|
[a, b, c, d, e.class, e&&e.call(:x)]
}
assert_equal [nil, nil, :c, :d, NilClass, nil], pr.call()
assert_equal [1, nil, :c, :d, NilClass, nil], pr.call(1)
assert_equal [1, 2, :c, :d, NilClass, nil], pr.call(1,2)
assert_equal [1, 2, 3, :d, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, 4, NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [nil, nil, :c, :d, Proc, :proc], (pr.call(){ :proc })
assert_equal [1, nil, :c, :d, Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, :c, :d, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, 3, :d, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [nil, nil, :c, :d, Proc, :x], (pr.call(){|x| x})
assert_equal [1, nil, :c, :d, Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, :c, :d, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, 3, :d, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, 4, Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
end
def test_proc_args_opt_block
pr = proc {|a=:a,b=:b,c=:c,d=:d,&e|
[a, b, c, d, e.class, e&&e.call(:x)]
}
assert_equal [:a, :b, :c, :d, NilClass, nil], pr.call()
assert_equal [1, :b, :c, :d, NilClass, nil], pr.call(1)
assert_equal [1, 2, :c, :d, NilClass, nil], pr.call(1,2)
assert_equal [1, 2, 3, :d, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, 4, NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [:a, :b, :c, :d, Proc, :proc], (pr.call(){ :proc })
assert_equal [1, :b, :c, :d, Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, :c, :d, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, 3, :d, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [:a, :b, :c, :d, Proc, :x], (pr.call(){|x| x})
assert_equal [1, :b, :c, :d, Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, :c, :d, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, 3, :d, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, 4, Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
end
def test_proc_args_pos_opt_post_block
pr = proc {|a,b,c=:c,d=:d,e,f,&g|
[a, b, c, d, e, f, g.class, g&&g.call(:x)]
}
assert_equal [nil, nil, :c, :d, nil, nil, NilClass, nil], pr.call()
assert_equal [1, nil, :c, :d, nil, nil, NilClass, nil], pr.call(1)
assert_equal [1, 2, :c, :d, nil, nil, NilClass, nil], pr.call(1,2)
assert_equal [1, 2, :c, :d, 3, nil, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, :c, :d, 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, :d, 4, 5, NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, 5, 6, NilClass, nil], pr.call(1,2,3,4,5,6)
assert_equal [1, 2, 3, 4, 5, 6, NilClass, nil], pr.call(1,2,3,4,5,6,7)
assert_equal [nil, nil, :c, :d, nil, nil, Proc, :proc], (pr.call(){ :proc })
assert_equal [1, nil, :c, :d, nil, nil, Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, :c, :d, nil, nil, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, :c, :d, 3, nil, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, :c, :d, 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, :d, 4, 5, Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [1, 2, 3, 4, 5, 6, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6){ :proc })
assert_equal [1, 2, 3, 4, 5, 6, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6, 7){ :proc })
assert_equal [nil, nil, :c, :d, nil, nil, Proc, :x], (pr.call(){|x| x})
assert_equal [1, nil, :c, :d, nil, nil, Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, :c, :d, nil, nil, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, :c, :d, 3, nil, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, :c, :d, 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, :d, 4, 5, Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
assert_equal [1, 2, 3, 4, 5, 6, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6){|x| x})
assert_equal [1, 2, 3, 4, 5, 6, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6, 7){|x| x})
end
def test_proc_args_opt_post_block
pr = proc {|a=:a,b=:b,c=:c,d=:d,e,f,&g|
[a, b, c, d, e, f, g.class, g&&g.call(:x)]
}
assert_equal [:a, :b, :c, :d, nil, nil, NilClass, nil], pr.call()
assert_equal [:a, :b, :c, :d, 1, nil, NilClass, nil], pr.call(1)
assert_equal [:a, :b, :c, :d, 1, 2, NilClass, nil], pr.call(1,2)
assert_equal [1, :b, :c, :d, 2, 3, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, :c, :d, 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, :d, 4, 5, NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, 5, 6, NilClass, nil], pr.call(1,2,3,4,5,6)
assert_equal [1, 2, 3, 4, 5, 6, NilClass, nil], pr.call(1,2,3,4,5,6,7)
assert_equal [:a, :b, :c, :d, nil, nil, Proc, :proc], (pr.call(){ :proc })
assert_equal [:a, :b, :c, :d, 1, nil, Proc, :proc], (pr.call(1){ :proc })
assert_equal [:a, :b, :c, :d, 1, 2, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, :b, :c, :d, 2, 3, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, :c, :d, 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, :d, 4, 5, Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [1, 2, 3, 4, 5, 6, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6){ :proc })
assert_equal [1, 2, 3, 4, 5, 6, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6, 7){ :proc })
assert_equal [:a, :b, :c, :d, nil, nil, Proc, :x], (pr.call(){|x| x})
assert_equal [:a, :b, :c, :d, 1, nil, Proc, :x], (pr.call(1){|x| x})
assert_equal [:a, :b, :c, :d, 1, 2, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, :b, :c, :d, 2, 3, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, :c, :d, 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, :d, 4, 5, Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
assert_equal [1, 2, 3, 4, 5, 6, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6){|x| x})
assert_equal [1, 2, 3, 4, 5, 6, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6, 7){|x| x})
end
def test_proc_args_pos_opt_rest_block
pr = proc {|a,b,c=:c,d=:d,*e,&f|
[a, b, c, d, e, f.class, f&&f.call(:x)]
}
assert_equal [nil, nil, :c, :d, [], NilClass, nil], pr.call()
assert_equal [1, nil, :c, :d, [], NilClass, nil], pr.call(1)
assert_equal [1, 2, :c, :d, [], NilClass, nil], pr.call(1,2)
assert_equal [1, 2, 3, :d, [], NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, 3, 4, [], NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, 4, [5], NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, [5,6], NilClass, nil], pr.call(1,2,3,4,5,6)
assert_equal [nil, nil, :c, :d, [], Proc, :proc], (pr.call(){ :proc })
assert_equal [1, nil, :c, :d, [], Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, :c, :d, [], Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, 3, :d, [], Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, 3, 4, [], Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, 4, [5], Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [1, 2, 3, 4, [5,6], Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6){ :proc })
assert_equal [nil, nil, :c, :d, [], Proc, :x], (pr.call(){|x| x})
assert_equal [1, nil, :c, :d, [], Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, :c, :d, [], Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, 3, :d, [], Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, 3, 4, [], Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, 4, [5], Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
assert_equal [1, 2, 3, 4, [5,6], Proc, :x], (pr.call(1, 2, 3, 4, 5, 6){|x| x})
end
def test_proc_args_opt_rest_block
pr = proc {|a=:a,b=:b,c=:c,d=:d,*e,&f|
[a, b, c, d, e, f.class, f&&f.call(:x)]
}
assert_equal [:a, :b, :c, :d, [], NilClass, nil], pr.call()
assert_equal [1, :b, :c, :d, [], NilClass, nil], pr.call(1)
assert_equal [1, 2, :c, :d, [], NilClass, nil], pr.call(1,2)
assert_equal [1, 2, 3, :d, [], NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, 3, 4, [], NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, 4, [5], NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, [5,6], NilClass, nil], pr.call(1,2,3,4,5,6)
assert_equal [:a, :b, :c, :d, [], Proc, :proc], (pr.call(){ :proc })
assert_equal [1, :b, :c, :d, [], Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, :c, :d, [], Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, 3, :d, [], Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, 3, 4, [], Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, 4, [5], Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [1, 2, 3, 4, [5,6], Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6){ :proc })
assert_equal [:a, :b, :c, :d, [], Proc, :x], (pr.call(){|x| x})
assert_equal [1, :b, :c, :d, [], Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, :c, :d, [], Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, 3, :d, [], Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, 3, 4, [], Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, 4, [5], Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
assert_equal [1, 2, 3, 4, [5,6], Proc, :x], (pr.call(1, 2, 3, 4, 5, 6){|x| x})
end
def test_proc_args_pos_opt_rest_post_block
pr = proc {|a,b,c=:c,d=:d,*e,f,g,&h|
[a, b, c, d, e, f, g, h.class, h&&h.call(:x)]
}
assert_equal [nil, nil, :c, :d, [], nil, nil, NilClass, nil], pr.call()
assert_equal [1, nil, :c, :d, [], nil, nil, NilClass, nil], pr.call(1)
assert_equal [1, 2, :c, :d, [], nil, nil, NilClass, nil], pr.call(1,2)
assert_equal [1, 2, :c, :d, [], 3, nil, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, :c, :d, [], 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, :d, [], 4, 5, NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, [], 5, 6, NilClass, nil], pr.call(1,2,3,4,5,6)
assert_equal [1, 2, 3, 4, [5], 6, 7, NilClass, nil], pr.call(1,2,3,4,5,6,7)
assert_equal [1, 2, 3, 4, [5,6], 7, 8, NilClass, nil], pr.call(1,2,3,4,5,6,7,8)
assert_equal [nil, nil, :c, :d, [], nil, nil, Proc, :proc], (pr.call(){ :proc })
assert_equal [1, nil, :c, :d, [], nil, nil, Proc, :proc], (pr.call(1){ :proc })
assert_equal [1, 2, :c, :d, [], nil, nil, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, 2, :c, :d, [], 3, nil, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, :c, :d, [], 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, :d, [], 4, 5, Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [1, 2, 3, 4, [], 5, 6, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6){ :proc })
assert_equal [1, 2, 3, 4, [5], 6, 7, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6, 7){ :proc })
assert_equal [1, 2, 3, 4, [5,6], 7, 8, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6, 7, 8){ :proc })
assert_equal [nil, nil, :c, :d, [], nil, nil, Proc, :x], (pr.call(){|x| x})
assert_equal [1, nil, :c, :d, [], nil, nil, Proc, :x], (pr.call(1){|x| x})
assert_equal [1, 2, :c, :d, [], nil, nil, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, 2, :c, :d, [], 3, nil, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, :c, :d, [], 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, :d, [], 4, 5, Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
assert_equal [1, 2, 3, 4, [], 5, 6, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6){|x| x})
assert_equal [1, 2, 3, 4, [5], 6, 7, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6, 7){|x| x})
assert_equal [1, 2, 3, 4, [5,6], 7, 8, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6, 7, 8){|x| x})
end
def test_proc_args_opt_rest_post_block
pr = proc {|a=:a,b=:b,c=:c,d=:d,*e,f,g,&h|
[a, b, c, d, e, f, g, h.class, h&&h.call(:x)]
}
assert_equal [:a, :b, :c, :d, [], nil, nil, NilClass, nil], pr.call()
assert_equal [:a, :b, :c, :d, [], 1, nil, NilClass, nil], pr.call(1)
assert_equal [:a, :b, :c, :d, [], 1, 2, NilClass, nil], pr.call(1,2)
assert_equal [1, :b, :c, :d, [], 2, 3, NilClass, nil], pr.call(1,2,3)
assert_equal [1, 2, :c, :d, [], 3, 4, NilClass, nil], pr.call(1,2,3,4)
assert_equal [1, 2, 3, :d, [], 4, 5, NilClass, nil], pr.call(1,2,3,4,5)
assert_equal [1, 2, 3, 4, [], 5, 6, NilClass, nil], pr.call(1,2,3,4,5,6)
assert_equal [1, 2, 3, 4, [5], 6, 7, NilClass, nil], pr.call(1,2,3,4,5,6,7)
assert_equal [1, 2, 3, 4, [5,6], 7, 8, NilClass, nil], pr.call(1,2,3,4,5,6,7,8)
assert_equal [:a, :b, :c, :d, [], nil, nil, Proc, :proc], (pr.call(){ :proc })
assert_equal [:a, :b, :c, :d, [], 1, nil, Proc, :proc], (pr.call(1){ :proc })
assert_equal [:a, :b, :c, :d, [], 1, 2, Proc, :proc], (pr.call(1, 2){ :proc })
assert_equal [1, :b, :c, :d, [], 2, 3, Proc, :proc], (pr.call(1, 2, 3){ :proc })
assert_equal [1, 2, :c, :d, [], 3, 4, Proc, :proc], (pr.call(1, 2, 3, 4){ :proc })
assert_equal [1, 2, 3, :d, [], 4, 5, Proc, :proc], (pr.call(1, 2, 3, 4, 5){ :proc })
assert_equal [1, 2, 3, 4, [], 5, 6, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6){ :proc })
assert_equal [1, 2, 3, 4, [5], 6, 7, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6, 7){ :proc })
assert_equal [1, 2, 3, 4, [5,6], 7, 8, Proc, :proc], (pr.call(1, 2, 3, 4, 5, 6, 7, 8){ :proc })
assert_equal [:a, :b, :c, :d, [], nil, nil, Proc, :x], (pr.call(){|x| x})
assert_equal [:a, :b, :c, :d, [], 1, nil, Proc, :x], (pr.call(1){|x| x})
assert_equal [:a, :b, :c, :d, [], 1, 2, Proc, :x], (pr.call(1, 2){|x| x})
assert_equal [1, :b, :c, :d, [], 2, 3, Proc, :x], (pr.call(1, 2, 3){|x| x})
assert_equal [1, 2, :c, :d, [], 3, 4, Proc, :x], (pr.call(1, 2, 3, 4){|x| x})
assert_equal [1, 2, 3, :d, [], 4, 5, Proc, :x], (pr.call(1, 2, 3, 4, 5){|x| x})
assert_equal [1, 2, 3, 4, [], 5, 6, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6){|x| x})
assert_equal [1, 2, 3, 4, [5], 6, 7, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6, 7){|x| x})
assert_equal [1, 2, 3, 4, [5,6], 7, 8, Proc, :x], (pr.call(1, 2, 3, 4, 5, 6, 7, 8){|x| x})
end
def test_proc_args_pos_unleashed
r = proc {|a,b=1,*c,d,e|
[a,b,c,d,e]
}.call(1,2,3,4,5)
assert_equal([1,2,[3],4,5], r, "[ruby-core:19485]")
end
def test_parameters
assert_equal([], proc {}.parameters)
assert_equal([], proc {||}.parameters)
assert_equal([[:opt, :a]], proc {|a|}.parameters)
assert_equal([[:opt, :a], [:opt, :b]], proc {|a, b|}.parameters)
assert_equal([[:opt, :a], [:block, :b]], proc {|a=:a, &b|}.parameters)
assert_equal([[:opt, :a], [:opt, :b]], proc {|a, b=:b|}.parameters)
assert_equal([[:rest, :a]], proc {|*a|}.parameters)
assert_equal([[:opt, :a], [:rest, :b], [:block, :c]], proc {|a, *b, &c|}.parameters)
assert_equal([[:opt, :a], [:rest, :b], [:opt, :c]], proc {|a, *b, c|}.parameters)
assert_equal([[:opt, :a], [:rest, :b], [:opt, :c], [:block, :d]], proc {|a, *b, c, &d|}.parameters)
assert_equal([[:opt, :a], [:opt, :b], [:rest, :c], [:opt, :d], [:block, :e]], proc {|a, b=:b, *c, d, &e|}.parameters)
assert_equal([[:opt, nil], [:block, :b]], proc {|(a), &b|a}.parameters)
assert_equal([[:opt, :a], [:opt, :b], [:opt, :c], [:opt, :d], [:rest, :e], [:opt, :f], [:opt, :g], [:block, :h]], proc {|a,b,c=:c,d=:d,*e,f,g,&h|}.parameters)
assert_equal([[:req]], method(:putc).parameters)
assert_equal([[:rest]], method(:p).parameters)
pr = eval("proc{|"+"(_),"*30+"|}")
assert_empty(pr.parameters.map{|_,n|n}.compact)
end
def pm0() end
def pm1(a) end
def pm2(a, b) end
def pmo1(a = :a, &b) end
def pmo2(a, b = :b) end
def pmo3(*a) end
def pmo4(a, *b, &c) end
def pmo5(a, *b, c) end
def pmo6(a, *b, c, &d) end
def pmo7(a, b = :b, *c, d, &e) end
def pma1((a), &b) a; end
def pmk1(**) end
def pmk2(**o) nil && o end
def pmk3(a, **o) nil && o end
def pmk4(a = nil, **o) nil && o end
def pmk5(a, b = nil, **o) nil && o end
def pmk6(a, b = nil, c, **o) nil && o end
def pmk7(a, b = nil, *c, d, **o) nil && o end
def test_bound_parameters
assert_equal([], method(:pm0).to_proc.parameters)
assert_equal([[:req, :a]], method(:pm1).to_proc.parameters)
assert_equal([[:req, :a], [:req, :b]], method(:pm2).to_proc.parameters)
assert_equal([[:opt, :a], [:block, :b]], method(:pmo1).to_proc.parameters)
assert_equal([[:req, :a], [:opt, :b]], method(:pmo2).to_proc.parameters)
assert_equal([[:rest, :a]], method(:pmo3).to_proc.parameters)
assert_equal([[:req, :a], [:rest, :b], [:block, :c]], method(:pmo4).to_proc.parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c]], method(:pmo5).to_proc.parameters)
assert_equal([[:req, :a], [:rest, :b], [:req, :c], [:block, :d]], method(:pmo6).to_proc.parameters)
assert_equal([[:req, :a], [:opt, :b], [:rest, :c], [:req, :d], [:block, :e]], method(:pmo7).to_proc.parameters)
assert_equal([[:req], [:block, :b]], method(:pma1).to_proc.parameters)
assert_equal([[:keyrest]], method(:pmk1).to_proc.parameters)
assert_equal([[:keyrest, :o]], method(:pmk2).to_proc.parameters)
assert_equal([[:req, :a], [:keyrest, :o]], method(:pmk3).to_proc.parameters)
assert_equal([[:opt, :a], [:keyrest, :o]], method(:pmk4).to_proc.parameters)
assert_equal([[:req, :a], [:opt, :b], [:keyrest, :o]], method(:pmk5).to_proc.parameters)
assert_equal([[:req, :a], [:opt, :b], [:req, :c], [:keyrest, :o]], method(:pmk6).to_proc.parameters)
assert_equal([[:req, :a], [:opt, :b], [:rest, :c], [:req, :d], [:keyrest, :o]], method(:pmk7).to_proc.parameters)
assert_equal([], "".method(:empty?).to_proc.parameters)
assert_equal([[:rest]], "".method(:gsub).to_proc.parameters)
assert_equal([[:rest]], proc {}.curry.parameters)
end
def test_to_s
assert_match(/^#<Proc:0x\h+ #{ Regexp.quote(__FILE__) }:\d+>$/, proc {}.to_s)
assert_match(/^#<Proc:0x\h+ #{ Regexp.quote(__FILE__) }:\d+ \(lambda\)>$/, lambda {}.to_s)
assert_match(/^#<Proc:0x\h+ \(lambda\)>$/, method(:p).to_proc.to_s)
x = proc {}
x.taint
assert_predicate(x.to_s, :tainted?)
name = "Proc\u{1f37b}"
assert_include(EnvUtil.labeled_class(name, Proc).new {}.to_s, name)
end
@@line_of_source_location_test = __LINE__ + 1
def source_location_test a=1,
b=2
end
def test_source_location
file, lineno = method(:source_location_test).source_location
assert_match(/^#{ Regexp.quote(__FILE__) }$/, file)
assert_equal(@@line_of_source_location_test, lineno, 'Bug #2427')
end
@@line_of_attr_reader_source_location_test = __LINE__ + 3
@@line_of_attr_writer_source_location_test = __LINE__ + 3
@@line_of_attr_accessor_source_location_test = __LINE__ + 3
attr_reader :attr_reader_source_location_test
attr_writer :attr_writer_source_location_test
attr_accessor :attr_accessor_source_location_test
def test_attr_source_location
file, lineno = method(:attr_reader_source_location_test).source_location
assert_match(/^#{ Regexp.quote(__FILE__) }$/, file)
assert_equal(@@line_of_attr_reader_source_location_test, lineno)
file, lineno = method(:attr_writer_source_location_test=).source_location
assert_match(/^#{ Regexp.quote(__FILE__) }$/, file)
assert_equal(@@line_of_attr_writer_source_location_test, lineno)
file, lineno = method(:attr_accessor_source_location_test).source_location
assert_match(/^#{ Regexp.quote(__FILE__) }$/, file)
assert_equal(@@line_of_attr_accessor_source_location_test, lineno)
file, lineno = method(:attr_accessor_source_location_test=).source_location
assert_match(/^#{ Regexp.quote(__FILE__) }$/, file)
assert_equal(@@line_of_attr_accessor_source_location_test, lineno)
end
def block_source_location_test(*args, &block)
block.source_location
end
def test_block_source_location
exp_lineno = __LINE__ + 3
file, lineno = block_source_location_test(1,
2,
3) do
end
assert_match(/^#{ Regexp.quote(__FILE__) }$/, file)
assert_equal(exp_lineno, lineno)
end
def test_splat_without_respond_to
def (obj = Object.new).respond_to?(m,*); false end
[obj].each do |a, b|
assert_equal([obj, nil], [a, b], '[ruby-core:24139]')
end
end
def test_curry_with_trace
# bug3751 = '[ruby-core:31871]'
set_trace_func(proc {})
methods.grep(/\Atest_curry/) do |test|
next if test == __method__
__send__(test)
end
ensure
set_trace_func(nil)
end
def test_block_propagation
bug3792 = '[ruby-core:32075]'
c = Class.new do
def foo
yield
end
end
o = c.new
f = :foo.to_proc
assert_nothing_raised(LocalJumpError, bug3792) {
assert_equal('bar', f.(o) {'bar'}, bug3792)
}
assert_nothing_raised(LocalJumpError, bug3792) {
assert_equal('zot', o.method(:foo).to_proc.() {'zot'}, bug3792)
}
end
def test_overridden_lambda
bug8345 = '[ruby-core:54687] [Bug #8345]'
assert_normal_exit('def lambda; end; method(:puts).to_proc', bug8345)
end
def test_overridden_proc
bug8345 = '[ruby-core:54688] [Bug #8345]'
assert_normal_exit('def proc; end; ->{}.curry', bug8345)
end
def get_binding if: 1, case: 2, when: 3, begin: 4, end: 5
a ||= 0
binding
end
def test_local_variables
b = get_binding
assert_equal(%i'if case when begin end a', b.local_variables)
a = tap {|;x, y| x = y = x; break binding.local_variables}
assert_equal(%i[a b x y], a.sort)
end
def test_local_variables_nested
b = tap {break binding}
assert_equal(%i[b], b.local_variables, '[ruby-dev:48351] [Bug #10001]')
end
def local_variables_of(bind)
this_should_not_be_in_bind = this_should_not_be_in_bind = 2
bind.local_variables
end
def test_local_variables_in_other_context
feature8773 = '[Feature #8773]'
assert_equal([:feature8773], local_variables_of(binding), feature8773)
end
def test_local_variable_get
b = get_binding
assert_equal(0, b.local_variable_get(:a))
assert_raise(NameError){ b.local_variable_get(:b) }
# access keyword named local variables
assert_equal(1, b.local_variable_get(:if))
assert_equal(2, b.local_variable_get(:case))
assert_equal(3, b.local_variable_get(:when))
assert_equal(4, b.local_variable_get(:begin))
assert_equal(5, b.local_variable_get(:end))
end
def test_local_variable_set
b = get_binding
b.local_variable_set(:a, 10)
b.local_variable_set(:b, 20)
assert_equal(10, b.local_variable_get(:a))
assert_equal(20, b.local_variable_get(:b))
assert_equal(10, b.eval("a"))
assert_equal(20, b.eval("b"))
end
def test_local_variable_set_wb
assert_ruby_status([], <<-'end;', '[Bug #13605]', timeout: 30)
b = binding
n = 20_000
n.times do |i|
v = rand(2_000)
name = "n#{v}"
value = Object.new
b.local_variable_set name, value
end
end;
end
def test_local_variable_defined?
b = get_binding
assert_equal(true, b.local_variable_defined?(:a))
assert_equal(false, b.local_variable_defined?(:b))
end
def test_binding_receiver
feature8779 = '[ruby-dev:47613] [Feature #8779]'
assert_same(self, binding.receiver, feature8779)
obj = Object.new
def obj.b; binding; end
assert_same(obj, obj.b.receiver, feature8779)
end
def test_proc_mark
assert_normal_exit(<<-'EOS')
def f
Enumerator.new{
100000.times {|i|
yield
s = "#{i}"
}
}
end
def g
x = proc{}
f(&x)
end
e = g
e.each {}
EOS
end
def test_prepended_call
assert_in_out_err([], "#{<<~"begin;"}\n#{<<~'end;'}", ["call"])
begin;
Proc.prepend Module.new {def call() puts "call"; super; end}
def m(&blk) blk.call; end
m {}
end;
end
def test_refined_call
assert_in_out_err([], "#{<<~"begin;"}\n#{<<~'end;'}", ["call"])
begin;
using Module.new {refine(Proc) {def call() puts "call"; super; end}}
def m(&blk) blk.call; end
m {}
end;
end
def method_for_test_proc_without_block_for_symbol
binding.eval('proc')
end
def test_proc_without_block_for_symbol
assert_equal('1', method_for_test_proc_without_block_for_symbol(&:to_s).call(1), '[Bug #14782]')
end
def test_compose
f = proc {|x| x * 2}
g = proc {|x| x + 1}
assert_equal(6, (f << g).call(2))
assert_equal(6, (g >> f).call(2))
end
def test_compose_with_multiple_args
f = proc {|x| x * 2}
g = proc {|x, y| x + y}
assert_equal(6, (f << g).call(1, 2))
assert_equal(6, (g >> f).call(1, 2))
end
def test_compose_with_block
f = proc {|x| x * 2}
g = proc {|&blk| blk.call(1) }
assert_equal(8, (f << g).call { |x| x + 3 })
assert_equal(8, (g >> f).call { |x| x + 3 })
end
def test_compose_with_lambda
f = lambda {|x| x * 2}
g = lambda {|x| x}
assert_predicate((f << g), :lambda?)
assert_predicate((g >> f), :lambda?)
end
def test_compose_with_method
f = proc {|x| x * 2}
c = Class.new {
def g(x) x + 1 end
}
g = c.new.method(:g)
assert_equal(6, (f << g).call(2))
assert_equal(5, (f >> g).call(2))
end
def test_compose_with_callable
f = proc {|x| x * 2}
c = Class.new {
def call(x) x + 1 end
}
g = c.new
assert_equal(6, (f << g).call(2))
assert_equal(5, (f >> g).call(2))
end
def test_compose_with_noncallable
f = proc {|x| x * 2}
assert_raise(TypeError) {
(f << 5).call(2)
}
assert_raise(TypeError) {
(f >> 5).call(2)
}
end
def test_orphan_return
assert_equal(42, Module.new { extend self
def m1(&b) b.call end; def m2(); m1 { return 42 } end }.m2)
assert_equal(42, Module.new { extend self
def m1(&b) b end; def m2(); m1 { return 42 }.call end }.m2)
assert_raise(LocalJumpError) { Module.new { extend self
def m1(&b) b end; def m2(); m1 { return 42 } end }.m2.call }
end
def test_orphan_break
assert_equal(42, Module.new { extend self
def m1(&b) b.call end; def m2(); m1 { break 42 } end }.m2 )
assert_raise(LocalJumpError) { Module.new { extend self
def m1(&b) b end; def m2(); m1 { break 42 }.call end }.m2 }
assert_raise(LocalJumpError) { Module.new { extend self
def m1(&b) b end; def m2(); m1 { break 42 } end }.m2.call }
end
def test_not_orphan_next
assert_equal(42, Module.new { extend self
def m1(&b) b.call end; def m2(); m1 { next 42 } end }.m2)
assert_equal(42, Module.new { extend self
def m1(&b) b end; def m2(); m1 { next 42 }.call end }.m2)
assert_equal(42, Module.new { extend self
def m1(&b) b end; def m2(); m1 { next 42 } end }.m2.call)
end
end