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require 'test/unit'
require_relative 'envutil'
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
assert_raise(ArgumentError) {@wm[true] = x}
assert_raise(ArgumentError) {@wm[false] = x}
assert_raise(ArgumentError) {@wm[nil] = x}
assert_raise(RuntimeError) {@wm[42] = x}
assert_raise(RuntimeError) {@wm[:foo] = x}
assert_raise(ArgumentError) {@wm[x] = true}
assert_raise(ArgumentError) {@wm[x] = false}
assert_raise(ArgumentError) {@wm[x] = nil}
assert_raise(RuntimeError) {@wm[x] = 42}
assert_raise(RuntimeError) {@wm[x] = :foo}
end
def test_include?
m = __callee__[/test_(.*)/, 1]
k = "foo"
1.times do
x = Object.new
@wm[k] = x
assert_send([@wm, m, k])
assert_not_send([@wm, m, "FOO".downcase])
x = nil
end
GC.start
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_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
end
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