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require 'abstract_unit'
require 'active_support/core_ext/thread'
class ThreadExt < ActiveSupport::TestCase
def test_main_thread_variable_in_enumerator
assert_equal Thread.main, Thread.current
Thread.current.thread_variable_set :foo, "bar"
thread, value = Fiber.new {
Fiber.yield [Thread.current, Thread.current.thread_variable_get(:foo)]
}.resume
assert_equal Thread.current, thread
assert_equal Thread.current.thread_variable_get(:foo), value
end
def test_thread_variable_in_enumerator
Thread.new {
Thread.current.thread_variable_set :foo, "bar"
thread, value = Fiber.new {
Fiber.yield [Thread.current, Thread.current.thread_variable_get(:foo)]
}.resume
assert_equal Thread.current, thread
assert_equal Thread.current.thread_variable_get(:foo), value
}.join
end
def test_thread_variables
assert_equal [], Thread.new { Thread.current.thread_variables }.join.value
t = Thread.new {
Thread.current.thread_variable_set(:foo, "bar")
Thread.current.thread_variables
}
assert_equal [:foo], t.join.value
end
def test_thread_variable?
assert_not Thread.new { Thread.current.thread_variable?("foo") }.join.value
t = Thread.new {
Thread.current.thread_variable_set("foo", "bar")
}.join
assert t.thread_variable?("foo")
assert t.thread_variable?(:foo)
assert_not t.thread_variable?(:bar)
end
def test_thread_variable_strings_and_symbols_are_the_same_key
t = Thread.new {}.join
t.thread_variable_set("foo", "bar")
assert_equal "bar", t.thread_variable_get(:foo)
end
def test_thread_variable_frozen
t = Thread.new { }.join
t.freeze
assert_raises(RuntimeError) do
t.thread_variable_set(:foo, "bar")
end
end
def test_thread_variable_frozen_after_set
t = Thread.new { }.join
t.thread_variable_set :foo, "bar"
t.freeze
assert_raises(RuntimeError) do
t.thread_variable_set(:baz, "qux")
end
end
end
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