fix(call_stack): match spy IDs in get_by_rehearsals (#55)

Closes #54

Author: mcous

decoy/call_stack.py

@@ -23,7 +23,7 @@ def consume_when_rehearsal(self) -> WhenRehearsal:
         """
         try:
             call = self._stack[-1]
-        except KeyError:
+        except IndexError:
             raise MissingRehearsalError()
         if not isinstance(call, SpyCall):
             raise MissingRehearsalError()
@@ -47,12 +47,12 @@ def consume_verify_rehearsals(self, count: int) -> List[VerifyRehearsal]:
         return rehearsals
 
     def get_by_rehearsals(self, rehearsals: Sequence[VerifyRehearsal]) -> List[SpyCall]:
-        """Get a list of all non-rehearsal calls to the given Spy IDs."""
+        """Get all non-rehearsal calls to the spies in the given rehearsals."""
         return [
             call
             for call in self._stack
             if isinstance(call, SpyCall)
-            and any(rehearsal == call for rehearsal in rehearsals)
+            and any(rehearsal.spy_id == call.spy_id for rehearsal in rehearsals)
         ]
 
     def get_all(self) -> List[BaseSpyCall]:

decoy/verifier.py

@@ -18,8 +18,9 @@ def verify(
         if times is not None:
             if len(calls) == times:
                 return None
+
         else:
-            for i, call in enumerate(calls):
+            for i in range(len(calls)):
                 calls_subset = calls[i : i + len(rehearsals)]
 
                 if calls_subset == rehearsals:

tests/test_call_stack.py

@@ -21,8 +21,11 @@ def test_push_and_consume_when_rehearsal() -> None:
 def test_consume_when_rehearsal_raises_empty_error() -> None:
     """It should raise an error if the stack is empty on pop."""
     subject = CallStack()
-    call = SpyCall(spy_id=42, spy_name="my_spy", args=(), kwargs={})
 
+    with pytest.raises(MissingRehearsalError):
+        subject.consume_when_rehearsal()
+
+    call = SpyCall(spy_id=42, spy_name="my_spy", args=(), kwargs={})
     subject.push(call)
     subject.consume_when_rehearsal()
 
@@ -64,7 +67,7 @@ def test_consume_verify_rehearsals_raises_error() -> None:
 
 
 def test_get_by_rehearsal() -> None:
-    """It can get a list of calls made matching a given rehearsal."""
+    """It can get a list of calls made matching spy IDs of given rehearsals."""
     subject = CallStack()
     call_1 = SpyCall(spy_id=101, spy_name="spy_1", args=(1,), kwargs={})
     call_2 = SpyCall(spy_id=101, spy_name="spy_1", args=(2,), kwargs={})
@@ -88,7 +91,7 @@ def test_get_by_rehearsal() -> None:
             VerifyRehearsal(spy_id=202, spy_name="spy_2", args=(1,), kwargs={}),
         ]
     )
-    assert result == [call_3]
+    assert result == [call_1, call_3, call_4]
 
     result = subject.get_by_rehearsals(
         [VerifyRehearsal(spy_id=303, spy_name="spy_3", args=(1,), kwargs={})]