[CI][Quickfix] Fix AscendFusedMoE init error (#2268)

### What this PR does / why we need it?
Fix AscendFusedMoE init error. Use `super().__init__()` instead of
`super(FusedMoE, self).__init__()` to ensure the member variables in
base class could be called by the children class

### Does this PR introduce _any_ user-facing change?
N/A
### How was this patch tested?
CI passed with new existing test.


- vLLM version: v0.10.0
- vLLM main:
vllm-project/vllm@766bc81

---------

Signed-off-by: MengqingCao <[email protected]>

Author: MengqingCao

tests/ut/ops/test_fused_ops.py

@@ -20,6 +20,7 @@
 import torch.nn as nn
 import torch_npu
 from pytest_mock import MockerFixture
+from vllm.model_executor.layers.fused_moe import FusedMoEMethodBase
 
 from vllm_ascend.ascend_forward_context import _get_fused_moe_state
 from vllm_ascend.ops.fused_moe import (AscendFusedMoE,
@@ -59,6 +60,7 @@ def mock_dist_env(mocker: MockerFixture):
          patch('vllm_ascend.ops.fused_moe.get_tp_group', return_value=mock_dp_and_tp_group(mocker)), \
          patch('vllm.distributed.parallel_state.get_tp_group', return_value=mock_dp_and_tp_group(mocker)), \
          patch('vllm_ascend.ops.fused_moe.get_dp_group', return_value=mock_dp_and_tp_group(mocker)), \
+         patch('vllm.model_executor.layers.fused_moe.layer.get_dp_group', return_value=mock_dp_and_tp_group(mocker)), \
          patch('torch.distributed.all_gather', return_value=MagicMock(return_value=torch.randn(10,32))), \
          patch('torch.distributed.all_to_all_single', return_value=torch.randn(8, 32)), \
          patch('vllm_ascend.ops.fused_moe.tensor_model_parallel_all_reduce',
@@ -180,6 +182,18 @@ def __init__(self, shared_experts, num_tokens):
             self.apply = MagicMock(return_value=(torch.randn(num_tokens, 32)))
 
 
+class MockFusedMoEMethod(FusedMoEMethodBase):
+
+    def create_weights(self, layer: torch.nn.Module, num_experts: int,
+                       hidden_size: int, intermediate_size_per_partition: int,
+                       params_dtype: torch.dtype, **extra_weight_attrs):
+        pass
+
+    def apply(self, hidden_states: torch.Tensor,
+              expert_weights: torch.Tensor) -> torch.Tensor:
+        pass
+
+
 class TestAscendFusedMoe:
 
     def test_init_no_quant(self, mock_dist_env, default_moe_config):
@@ -213,7 +227,7 @@ def test_init_no_quant(self, mock_dist_env, default_moe_config):
 
     def test_init_with_quant(self, mock_dist_env, default_moe_config):
         mock_quant_config = MagicMock()
-        mock_quant_method = MagicMock()
+        mock_quant_method = MockFusedMoEMethod()
         mock_quant_config.get_quant_method.return_value = mock_quant_method
 
         moe = AscendFusedMoE(**default_moe_config,

vllm_ascend/ops/fused_moe.py

@@ -1181,8 +1181,27 @@ def __init__(
     ):
         # TODO: This could not initialize FusedMoE baseclass,
         # fixme and make __init__() of AscendFusedMoE more clear
-        super(FusedMoE, self).__init__()
-
+        super().__init__(
+            num_experts=num_experts,
+            top_k=top_k,
+            hidden_size=hidden_size,
+            intermediate_size=intermediate_size,
+            params_dtype=params_dtype,
+            reduce_results=reduce_results,
+            renormalize=renormalize,
+            use_grouped_topk=use_grouped_topk,
+            num_expert_group=num_expert_group,
+            topk_group=topk_group,
+            quant_config=quant_config,
+            tp_size=tp_size,
+            ep_size=ep_size,
+            dp_size=dp_size,
+            prefix=prefix,
+            custom_routing_function=custom_routing_function,
+            scoring_func=scoring_func,
+            e_score_correction_bias=e_score_correction_bias,
+            activation=activation,
+        )
         AscendFusedMoE.moe_counter += 1
         self.moe_instance_id = AscendFusedMoE.moe_counter