Use `suite_name` instead of `meta.yaml` for SSZ type

tests/core/pyspec/eth2spec/gen_helpers/gen_from_tests/gen.py

@@ -49,7 +49,7 @@ def generate_from_tests(runner_name: str, handler_name: str, src: Any,
             preset_name=preset_name,
             runner_name=runner_name,
             handler_name=handler_name,
-            suite_name='pyspec_tests',
+            suite_name=getattr(tfn, 'suite_name', 'pyspec_tests'),
             case_name=case_name,
             # TODO: with_all_phases and other per-phase tooling, should be replaced with per-fork equivalent.
             case_fn=lambda: tfn(generator_mode=True, phase=phase, preset=preset_name, bls_active=bls_active)

tests/core/pyspec/eth2spec/test/altair/light_client/test_single_merkle_proof.py

@@ -1,13 +1,14 @@
 from eth2spec.test.context import (
     spec_state_test,
     with_altair_and_later,
+    with_test_suite_name,
 )
 
 
+@with_test_suite_name("BeaconState")
 @with_altair_and_later
 @spec_state_test
 def test_current_sync_committee_merkle_proof(spec, state):
-    yield "object_class", "meta", "BeaconState"
     yield "object", state
     current_sync_committee_branch = \
         spec.compute_merkle_proof_for_state(state, spec.CURRENT_SYNC_COMMITTEE_INDEX)
@@ -25,10 +26,10 @@ def test_current_sync_committee_merkle_proof(spec, state):
     )
 
 
+@with_test_suite_name("BeaconState")
 @with_altair_and_later
 @spec_state_test
 def test_next_sync_committee_merkle_proof(spec, state):
-    yield "object_class", "meta", "BeaconState"
     yield "object", state
     next_sync_committee_branch = \
         spec.compute_merkle_proof_for_state(state, spec.NEXT_SYNC_COMMITTEE_INDEX)
@@ -46,10 +47,10 @@ def test_next_sync_committee_merkle_proof(spec, state):
     )
 
 
+@with_test_suite_name("BeaconState")
 @with_altair_and_later
 @spec_state_test
 def test_finality_root_merkle_proof(spec, state):
-    yield "object_class", "meta", "BeaconState"
     yield "object", state
     finality_branch = \
         spec.compute_merkle_proof_for_state(state, spec.FINALIZED_ROOT_INDEX)

tests/core/pyspec/eth2spec/test/context.py

@@ -620,6 +620,13 @@ def only_generator(reason):
     return _decorator
 
 
+def with_test_suite_name(suite_name: str):
+    def _decorator(inner):
+        inner.suite_name = suite_name
+        return inner
+    return _decorator
+
+
 #
 # Fork transition state tests
 #

tests/formats/light_client/single_merkle_proof.md

@@ -5,15 +5,11 @@ generation and verification of merkle proofs based on static data.
 
 ## Test case format
 
-### `meta.yaml`
-
-```yaml
-object_class: string  -- 'BeaconState'
-```
+Tests for each individual SSZ type are grouped into a `suite` indicating the SSZ type name.
 
 ### `object.yaml`
 
-A SSZ-snappy encoded object of type `object_class` from which other data is generated.
+A SSZ-snappy encoded object from which other data is generated. The SSZ type can be determined from the test `suite` name.
 
 ### `proof.yaml`