Apply suggestions from code review

"rewards/penalties" -> "deltas" in throughout test comments/descriptions

Co-authored-by: Diederik Loerakker <proto@protolambda.com>

tests/core/pyspec/eth2spec/test/helpers/rewards.py

@@ -28,8 +28,7 @@ def run_attestation_component_deltas(spec, state, component_delta_fn, matching_a
     """
     Run ``component_delta_fn``, yielding:
       - pre-state ('pre')
-      - rewards ('rewards')
-      - penalties ('penalties')
+      - deltas ('deltas')
     """
     yield 'pre', state
 

tests/core/pyspec/eth2spec/test/phase_0/rewards/test_get_head_deltas.py

@@ -7,8 +7,7 @@ def run_get_head_deltas(spec, state):
     """
     Run ``get_head_deltas``, yielding:
       - pre-state ('pre')
-      - rewards ('rewards')
-      - penalties ('penalties')
+      - deltas ('deltas')
     """
 
     yield from run_attestation_component_deltas(

tests/core/pyspec/eth2spec/test/phase_0/rewards/test_get_inactivity_penalty_deltas.py

@@ -9,8 +9,7 @@ def run_get_inactivity_penalty_deltas(spec, state):
     """
     Run ``get_inactivity_penalty_deltas``, yielding:
       - pre-state ('pre')
-      - rewards ('rewards')
-      - penalties ('penalties')
+      - deltas ('deltas')
     """
 
     yield 'pre', state

tests/core/pyspec/eth2spec/test/phase_0/rewards/test_get_inclusion_delay_deltas.py

@@ -10,8 +10,7 @@ def run_get_inclusion_delay_deltas(spec, state):
     """
     Run ``get_inclusion_delay_deltas``, yielding:
       - pre-state ('pre')
-      - rewards ('rewards')
-      - penalties ('penalties')
+      - deltas ('deltas')
     """
 
     yield 'pre', state

tests/core/pyspec/eth2spec/test/phase_0/rewards/test_get_source_deltas.py

@@ -7,8 +7,7 @@ def run_get_source_deltas(spec, state):
     """
     Run ``get_source_deltas``, yielding:
       - pre-state ('pre')
-      - rewards ('rewards')
-      - penalties ('penalties')
+      - deltas ('deltas')
     """
 
     yield from run_attestation_component_deltas(

tests/core/pyspec/eth2spec/test/phase_0/rewards/test_get_target_deltas.py

@@ -7,8 +7,7 @@ def run_get_target_deltas(spec, state):
     """
     Run ``get_target_deltas``, yielding:
       - pre-state ('pre')
-      - rewards ('rewards')
-      - penalties ('penalties')
+      - deltas ('deltas')
     """
 
     yield from run_attestation_component_deltas(

tests/formats/rewards/README.md

@@ -33,7 +33,7 @@ class Deltas(Container):
     penalties: List[uint64, VALIDATOR_REGISTRY_LIMIT]
 ```
 
-Also available as `rewards.ssz`.
+Also available as `deltas.ssz`.
 
 ## Condition