Add test

sismic/interpreter.py

@@ -553,7 +553,7 @@ def __repr__(self):
         return '{}[{}]({})'.format(self.__class__.__name__, self._statechart, ', '.join(self.configuration))
 
 
-def run_in_background(interpreter: Interpreter, delay: int=0.2):
+def run_in_background(interpreter: Interpreter, delay: float=0.2):
     """
     Run given interpreter in background. The time is updated according to
     ``time.time()``. The interpreter is ran until it reachs a final configuration.

tests/test_interpreter.py

@@ -1,13 +1,23 @@
 import unittest
 from sismic import io
-from sismic.interpreter import Interpreter
+from sismic.interpreter import Interpreter, run_in_background
 from sismic.evaluator import DummyEvaluator
 from sismic.model import Event, Transition, StateChart, StateMixin
-
 from sismic.model import PreconditionFailed, PostconditionFailed, InvariantFailed
 
 
-class SimulatorSimpleTest(unittest.TestCase):
+class RunInBackgroundTests(unittest.TestCase):
+    def test_run_in_background(self):
+        sc = io.import_from_yaml(open('examples/simple/simple.yaml'))
+        intp = Interpreter(sc)
+        task = run_in_background(intp, 0.001)
+        intp.send(Event('goto s2'))
+        intp.send(Event('goto final'))
+        task.join()
+        self.assertTrue(intp.final)
+
+
+class SimulatorSimpleTests(unittest.TestCase):
     def test_init(self):
         sc = io.import_from_yaml(open('examples/simple/simple.yaml'))
         interpreter = Interpreter(sc, DummyEvaluator)