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require 'test/unit'
$KCODE = 'none'
class Array
def iter_test1
collect{|e| [e, yield(e)]}.sort{|a,b|a[1]<=>b[1]}
end
def iter_test2
a = collect{|e| [e, yield(e)]}
a.sort{|a,b|a[1]<=>b[1]}
end
end
class TestIterator < Test::Unit::TestCase
def ttt
assert(iterator?)
end
def test_iterator
assert(!iterator?)
ttt{}
# yield at top level !! here's not toplevel
assert(!defined?(yield))
end
def test_array
$x = [1, 2, 3, 4]
$y = []
# iterator over array
for i in $x
$y.push i
end
assert($x == $y)
end
def tt
1.upto(10) {|i|
yield i
}
end
def tt2(dummy)
yield 1
end
def tt3(&block)
tt2(raise(ArgumentError,""),&block)
end
def test_nested_iterator
i = 0
tt{|i| break if i == 5}
assert(i == 5)
$x = false
begin
tt3{}
rescue ArgumentError
$x = true
rescue Exception
end
assert($x)
end
# iterator break/redo/next/retry
def test_break
done = true
loop{
break
done = false # should not reach here
}
assert(done)
done = false
$bad = false
loop {
break if done
done = true
next
$bad = true # should not reach here
}
assert(!$bad)
done = false
$bad = false
loop {
break if done
done = true
redo
$bad = true # should not reach here
}
assert(!$bad)
$x = []
for i in 1 .. 7
$x.push i
end
assert($x.size == 7)
assert($x == [1, 2, 3, 4, 5, 6, 7])
$done = false
$x = []
for i in 1 .. 7 # see how retry works in iterator loop
if i == 4 and not $done
$done = true
retry
end
$x.push(i)
end
assert($x.size == 10)
assert($x == [1, 2, 3, 1, 2, 3, 4, 5, 6, 7])
end
def test_append_method_to_built_in_class
$x = [[1,2],[3,4],[5,6]]
assert($x.iter_test1{|x|x} == $x.iter_test2{|x|x})
end
class IterTest
def initialize(e); @body = e; end
def each0(&block); @body.each(&block); end
def each1(&block); @body.each {|*x| block.call(*x) } end
def each2(&block); @body.each {|*x| block.call(x) } end
def each3(&block); @body.each {|x| block.call(*x) } end
def each4(&block); @body.each {|x| block.call(x) } end
def each5; @body.each {|*x| yield(*x) } end
def each6; @body.each {|*x| yield(x) } end
def each7; @body.each {|x| yield(*x) } end
def each8; @body.each {|x| yield(x) } end
def f(a)
a
end
end
def test_itertest
assert(IterTest.new(nil).method(:f).to_proc.call([1]) == [1])
m = /\w+/.match("abc")
assert(IterTest.new(nil).method(:f).to_proc.call([m]) == [m])
IterTest.new([0]).each0 {|x| assert(x == 0)}
IterTest.new([1]).each1 {|x| assert(x == 1)}
IterTest.new([2]).each2 {|x| assert(x == [2])}
IterTest.new([3]).each3 {|x| assert(x == 3)}
IterTest.new([4]).each4 {|x| assert(x == 4)}
IterTest.new([5]).each5 {|x| assert(x == 5)}
IterTest.new([6]).each6 {|x| assert(x == [6])}
IterTest.new([7]).each7 {|x| assert(x == 7)}
IterTest.new([8]).each8 {|x| assert(x == 8)}
IterTest.new([[0]]).each0 {|x| assert(x == [0])}
IterTest.new([[1]]).each1 {|x| assert(x == [1])}
IterTest.new([[2]]).each2 {|x| assert(x == [[2]])}
IterTest.new([[3]]).each3 {|x| assert(x == 3)}
IterTest.new([[4]]).each4 {|x| assert(x == [4])}
IterTest.new([[5]]).each5 {|x| assert(x == [5])}
IterTest.new([[6]]).each6 {|x| assert(x == [[6]])}
IterTest.new([[7]]).each7 {|x| assert(x == 7)}
IterTest.new([[8]]).each8 {|x| assert(x == [8])}
IterTest.new([[0,0]]).each0 {|x| assert(x == [0,0])}
IterTest.new([[8,8]]).each8 {|x| assert(x == [8,8])}
end
def m(var)
assert(var)
end
def m1
m(block_given?)
end
def m2
m(block_given?,&proc{})
end
def test_foo
m1{p 'test'}
m2{p 'test'}
end
class C
include Enumerable
def initialize
@a = [1,2,3]
end
def each(&block)
@a.each(&block)
end
end
def test_collect
assert(C.new.collect{|n| n} == [1,2,3])
end
def test_proc
assert(Proc == lambda{}.class)
assert(Proc == Proc.new{}.class)
lambda{|a|assert(a==1)}.call(1)
end
def block_test(klass, &block)
assert(klass === block)
end
def test_block
block_test(NilClass)
block_test(Proc){}
end
def argument_test(state, proc, *args)
x = state
begin
proc.call(*args)
rescue ArgumentError
x = !x
end
assert(x,2)
end
def test_argument
argument_test(true, lambda{||})
argument_test(false, lambda{||}, 1)
argument_test(true, lambda{|a,|}, 1)
argument_test(false, lambda{|a,|})
argument_test(false, lambda{|a,|}, 1,2)
end
def get_block(&block)
block
end
def test_get_block
assert(Proc == get_block{}.class)
argument_test(true, get_block{||})
argument_test(true, get_block{||}, 1)
argument_test(true, get_block{|a,|}, 1)
argument_test(true, get_block{|a,|})
argument_test(true, get_block{|a,|}, 1,2)
argument_test(true, get_block(&lambda{||}))
argument_test(false, get_block(&lambda{||}),1)
argument_test(true, get_block(&lambda{|a,|}),1)
argument_test(false, get_block(&lambda{|a,|}),1,2)
block = get_block{11}
assert(block.class == Proc)
assert(block.to_proc.class == Proc)
assert(block.clone.call == 11)
assert(get_block(&block).class == Proc)
lambda = lambda{44}
assert(lambda.class == Proc)
assert(lambda.to_proc.class == Proc)
assert(lambda.clone.call == 44)
assert(get_block(&lambda).class == Proc)
assert(Proc.new{|a,| a}.call(1,2,3) == 1)
argument_test(true, Proc.new{|a,|}, 1,2)
end
def return1_test # !! test_return1 -> return1_test
Proc.new {
return 55
}.call + 5
end
def test_return1
assert(return1_test() == 55)
end
def return2_test # !! test_return2 -> return2_test
lambda {
return 55
}.call + 5
end
def test_return2
assert(return2_test() == 60)
end
def proc_call(&b)
b.call
end
def proc_yield()
yield
end
def proc_return1
proc_call{return 42}+1
end
def test_proc_return1
assert(proc_return1() == 42)
end
def proc_return2
proc_yield{return 42}+1
end
def test_proc_return2
assert(proc_return2() == 42)
end
def ljump_test(state, proc, *args)
x = state
begin
proc.call(*args)
rescue LocalJumpError
x = !x
end
assert(x,2)
end
def test_ljump
block = get_block{11}
lambda = lambda{44}
# ljump_test(false, get_block{break}) # !! This line terminates testrunner... please sombody fix it.
ljump_test(true, lambda{break})
assert(block.arity == -1)
assert(lambda.arity == -1)
assert(lambda{||}.arity == 0)
assert(lambda{|a|}.arity == 1)
assert(lambda{|a,|}.arity == 1)
assert(lambda{|a,b|}.arity == 2)
end
def marity_test(m)
method = method(m)
assert(method.arity == method.to_proc.arity)
end
def test_marity
marity_test(:assert)
marity_test(:marity_test)
marity_test(:p)
lambda(&method(:assert)).call(true)
lambda(&get_block{|a,n| assert(a,n)}).call(true, 2)
end
class ITER_TEST1
def a
block_given?
end
end
class ITER_TEST2 < ITER_TEST1
include Test::Unit::Assertions
def a
assert(super)
super
end
end
def test_iter_test2
assert(ITER_TEST2.new.a {})
end
class ITER_TEST3
def foo x
return yield if block_given?
x
end
end
class ITER_TEST4 < ITER_TEST3
include Test::Unit::Assertions
def foo x
assert(super == yield)
assert(super(x, &nil) == x)
end
end
def test_iter4
ITER_TEST4.new.foo(44){55}
end
end
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