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# frozen_string_literal: false
require 'test/unit'
class TestWeakMap < Test::Unit::TestCase
def setup
@wm = ObjectSpace::WeakMap.new
end
def test_map
x = Object.new
k = "foo"
@wm[k] = x
assert_same(x, @wm[k])
assert_not_same(x, @wm["FOO".downcase])
end
def test_aset_const
x = Object.new
@wm[true] = x
assert_same(x, @wm[true])
@wm[false] = x
assert_same(x, @wm[false])
@wm[nil] = x
assert_same(x, @wm[nil])
@wm[42] = x
assert_same(x, @wm[42])
@wm[:foo] = x
assert_same(x, @wm[:foo])
@wm[x] = true
assert_same(true, @wm[x])
@wm[x] = false
assert_same(false, @wm[x])
@wm[x] = nil
assert_same(nil, @wm[x])
@wm[x] = 42
assert_same(42, @wm[x])
@wm[x] = :foo
assert_same(:foo, @wm[x])
end
def assert_weak_include(m, k, n = 100)
if n > 0
return assert_weak_include(m, k, n-1)
end
1.times do
x = Object.new
@wm[k] = x
assert_send([@wm, m, k])
assert_not_send([@wm, m, "FOO".downcase])
x = Object.new
end
end
def test_include?
m = __callee__[/test_(.*)/, 1]
k = "foo"
1.times do
assert_weak_include(m, k)
end
GC.start
skip('TODO: failure introduced from r60440')
assert_not_send([@wm, m, k])
end
alias test_member? test_include?
alias test_key? test_include?
def test_inspect
x = Object.new
k = BasicObject.new
@wm[k] = x
assert_match(/\A\#<#{@wm.class.name}:[^:]+:\s\#<BasicObject:[^:]*>\s=>\s\#<Object:[^:]*>>\z/,
@wm.inspect)
end
def test_inspect_garbage
1000.times do |i|
@wm[i] = Object.new
@wm.inspect
end
assert_match(/\A\#<#{@wm.class.name}:[^:]++:(?:\s\d+\s=>\s\#<(?:Object|collected):[^:<>]*+>(?:,|>\z))+/,
@wm.inspect)
end
def test_each
m = __callee__[/test_(.*)/, 1]
x1 = Object.new
k1 = "foo"
@wm[k1] = x1
x2 = Object.new
k2 = "bar"
@wm[k2] = x2
n = 0
@wm.__send__(m) do |k, v|
assert_match(/\A(?:foo|bar)\z/, k)
case k
when /foo/
assert_same(k1, k)
assert_same(x1, v)
when /bar/
assert_same(k2, k)
assert_same(x2, v)
end
n += 1
end
assert_equal(2, n)
end
def test_each_key
x1 = Object.new
k1 = "foo"
@wm[k1] = x1
x2 = Object.new
k2 = "bar"
@wm[k2] = x2
n = 0
@wm.each_key do |k|
assert_match(/\A(?:foo|bar)\z/, k)
case k
when /foo/
assert_same(k1, k)
when /bar/
assert_same(k2, k)
end
n += 1
end
assert_equal(2, n)
end
def test_each_value
x1 = "foo"
k1 = Object.new
@wm[k1] = x1
x2 = "bar"
k2 = Object.new
@wm[k2] = x2
n = 0
@wm.each_value do |v|
assert_match(/\A(?:foo|bar)\z/, v)
case v
when /foo/
assert_same(x1, v)
when /bar/
assert_same(x2, v)
end
n += 1
end
assert_equal(2, n)
end
def test_size
m = __callee__[/test_(.*)/, 1]
assert_equal(0, @wm.__send__(m))
x1 = "foo"
k1 = Object.new
@wm[k1] = x1
assert_equal(1, @wm.__send__(m))
x2 = "bar"
k2 = Object.new
@wm[k2] = x2
assert_equal(2, @wm.__send__(m))
end
alias test_length test_size
def test_frozen_object
o = Object.new.freeze
assert_nothing_raised(FrozenError) {@wm[o] = 'foo'}
assert_nothing_raised(FrozenError) {@wm['foo'] = o}
end
end
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