Async actor tests

Source:

import logging
import testing

actor MathTester():
    def add(a, b):
        return a + b

actor _AsyncTester(t: testing.AsyncT):
    log = logging.Logger(t.log_handler)
    def test():
        log.info("AsyncTester.test() doing its thing")
        t.success()
        # Provide output to .success to enable golden testing
        #   t.success("some_output")
        # Or if things aren't going well, use .failure or .error
        #   t.failure(ValueError("whopsy"))
        #   t.error(ValueError("whopsy"))
    after 0: test()

Run:

acton test

Output:

Building project in /home/user/foo
  Compiling example.act for release
   Finished compilation in   0.028 s
  Final compilation step
   Finished final compilation step in   0.516 s

Tests - module example:
  asyncact1:             OK: 1171 runs in 56.181ms

All 1 tests passed (0.695s)

If a particular module is written to be called asynchronously, you will need to use asynchronous tests to test it.

The test discovery system finds asynchronous tests by looking for actors that take a testing.AsyncT parameter.

Golden testing can be enabled by providing an output of type str to the .success(output: ?str) function. The Acton test framework will take care about recognizing the test as a golden test and comparing its output to the expected golden value.