teststory_from_trace generates a *step* event at the beginning of eac…

…h step.

CHANGELOG.rst

@@ -14,6 +14,7 @@ The YAML format of a statechart also changed, look carefully at the changelog an
   ``state_for``, ``parent_for``, ``children_for``.
 - (Added) Steps: ``__eq__`` for ``MacroStep`` and ``MicroStep``.
 - (Added) Stories: ``tell_by_step`` method for a ``Story``.
+- (Added) Testing: ``teststory_from_trace`` generates a *step* event at the beginning of each step.
 - (Added) Module: a new exceptions hierarchy (see ``exceptions`` module).
   The new exceptions are used in place of the old ones (``Warning``, ``AssertionError`` and ``ValueError``).
 - (Changed) YAML: uppermost *states:* should be replaced by *initial state:* and can contain at most one state.

sismic/testing.py

@@ -12,6 +12,7 @@ def teststory_from_trace(trace: list) -> Story:
 
      - the story begins with a *started* event.
      - the delay between pairs of consecutive steps creates a *pause* instance.
+     - each time a step begins, a *step* event is created.
      - each time an event is consumed, a *consumed* event is created.
        the consumed event is available through the *event* attribute.
      - each time a state is exited, an *exited* event is created.
@@ -46,6 +47,8 @@ def teststory_from_trace(trace: list) -> Story:
             story.append(Pause(macrostep.time - time))
             time = macrostep.time
 
+        story.append(Event('step'))
+
         if macrostep.event:
             story.append(Event('consumed', event=macrostep.event))