refactor(consume): use fixture format detection for enginex parametrization

Replace function name check with fixture format detection to properly
distinguish between engine and enginex simulators. Both use the same
test function name but process different fixture formats:

- Engine simulator: "blockchain_test_engine" → standard parametrization
- EngineX simulator: "blockchain_test_engine_x" → enhanced parametrization with xdist group splitting and load balancing

This provides more robust detection and avoids the design flaw of
hardcoding test function names.

Author: danceratopz

src/pytest_plugins/consume/consume.py

@@ -578,6 +578,11 @@ def pytest_generate_tests(metafunc):
     xdist_group_mapper = getattr(metafunc.config, "xdist_group_mapper", None)
     param_list = []
 
+    # Check if this is an enginex simulator (has enginex-specific enhancements)
+    is_enginex_function = (
+        hasattr(metafunc.config, "_supported_fixture_formats")
+        and "blockchain_test_engine_x" in metafunc.config._supported_fixture_formats
+    )
     for test_case in test_cases:
         # Check if _supported_fixture_formats is set, if not allow all formats
         supported_formats = getattr(metafunc.config, "_supported_fixture_formats", None)
@@ -586,36 +591,42 @@ def pytest_generate_tests(metafunc):
 
         fork_markers = get_relative_fork_markers(test_case.fork, strict_mode=False)
 
-        # Determine xdist group name first
-        if xdist_group_mapper and hasattr(test_case, "pre_hash") and test_case.pre_hash:
-            # Use the mapper to get potentially split group name
-            xdist_group_name = xdist_group_mapper.get_xdist_group_name(test_case)
-        elif hasattr(test_case, "pre_hash") and test_case.pre_hash:
-            # No mapper or not enginex, use pre_hash directly
-            xdist_group_name = test_case.pre_hash
-        else:
-            # No pre_hash, use test ID
-            xdist_group_name = test_case.id
-
-        # Create test ID showing the xdist group name for easier identification
+        # Basic test ID and markers (used by all consume tests)
         test_id = test_case.id
-        if hasattr(test_case, "pre_hash") and test_case.pre_hash:
-            # Show first 8 chars of xdist group name (includes sub-group if split)
-            group_display = xdist_group_name[:8] if len(xdist_group_name) > 8 else xdist_group_name
-            # If it's a split group (contains ':'), show that clearly
-            if ":" in xdist_group_name:
-                # Extract sub-group number for display
-                pre_hash_part, sub_group = xdist_group_name.split(":", 1)
-                group_display = f"{pre_hash_part[:8]}:{sub_group}"
-            test_id = f"{test_case.id}[{group_display}]"
-
-        param = pytest.param(
-            test_case,
-            id=test_id,
-            marks=[getattr(pytest.mark, m) for m in fork_markers]
-            + [getattr(pytest.mark, test_case.format.format_name)]
-            + [pytest.mark.xdist_group(name=xdist_group_name)],
-        )
+        markers = [getattr(pytest.mark, m) for m in fork_markers] + [
+            getattr(pytest.mark, test_case.format.format_name)
+        ]
+
+        # Apply enginex-specific enhancements only for enginex functions
+        if is_enginex_function:
+            # Determine xdist group name for enginex load balancing
+            if xdist_group_mapper and hasattr(test_case, "pre_hash") and test_case.pre_hash:
+                # Use the mapper to get potentially split group name
+                xdist_group_name = xdist_group_mapper.get_xdist_group_name(test_case)
+            elif hasattr(test_case, "pre_hash") and test_case.pre_hash:
+                # No mapper or not enginex, use pre_hash directly
+                xdist_group_name = test_case.pre_hash
+            else:
+                # No pre_hash, use test ID
+                xdist_group_name = test_case.id
+
+            # Create enhanced test ID showing the xdist group name for easier identification
+            if hasattr(test_case, "pre_hash") and test_case.pre_hash:
+                # Show first 8 chars of xdist group name (includes sub-group if split)
+                group_display = (
+                    xdist_group_name[:8] if len(xdist_group_name) > 8 else xdist_group_name
+                )
+                # If it's a split group (contains ':'), show that clearly
+                if ":" in xdist_group_name:
+                    # Extract sub-group number for display
+                    pre_hash_part, sub_group = xdist_group_name.split(":", 1)
+                    group_display = f"{pre_hash_part[:8]}:{sub_group}"
+                test_id = f"{test_case.id}[{group_display}]"
+
+            # Add xdist group marker for load balancing
+            markers.append(pytest.mark.xdist_group(name=xdist_group_name))
+
+        param = pytest.param(test_case, id=test_id, marks=markers)
         param_list.append(param)
 
     metafunc.parametrize("test_case", param_list)