def thread_map_preserves_order_of_elements():
original = [0.1, 0.05, 0]
def waiting_identity(value):
time.sleep(value)
return value
result = futures.thread_map(waiting_identity, original)
assert_equal(original, list(result))
def thread_map_across_empty_list_returns_empty_iterator():
result = futures.thread_map(lambda x: x, [])
assert_equal(0, len(result))
def error_is_raised_if_mapping_function_raises_error():
assert_raises(KurtError, lambda: futures.thread_map(raise_error, [0]))
def thread_map_applies_function_to_each_element():
original = [1, 2, 3]
result = futures.thread_map(lambda x: x * x, original)
assert_equal([1, 4, 9], list(result))
def passing_identity_function_to_thread_map_preserves_elements():
original = ["apple", "banana", "coconut"]
result = futures.thread_map(lambda x: x, original)
assert_equal(original, list(result))
