[V0 Deprecation] Remove V0 tests in test_sequence.py (#25088)

Signed-off-by: Woosuk Kwon <woosuk.kwon@berkeley.edu>

tests/test_sequence.py

 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
-import pytest
 import torch
 
-from vllm.model_executor.layers.sampler import SamplerOutput
-from vllm.sequence import (CompletionSequenceGroupOutput, IntermediateTensors,
-                           SequenceData, SequenceOutput)
-
-from .core.utils import create_dummy_prompt
-
-
-@pytest.fixture
-def sample_outputs():
-    return [
-        CompletionSequenceGroupOutput(samples=[
-            SequenceOutput(parent_seq_id=0, output_token=i, logprobs={})
-        ],
-                                      prompt_logprobs=None) for i in range(5)
-    ]
-
-
-@pytest.fixture
-def sampler_output(sample_outputs):
-    return SamplerOutput(outputs=sample_outputs)
-
-
-def test_sampler_output_initialization(sampler_output, sample_outputs):
-    assert len(sampler_output) == len(sample_outputs)
-    assert sampler_output.sampled_token_probs is None
-    assert sampler_output.sampled_token_ids is None
-
-
-def test_sampler_output_getitem(sampler_output, sample_outputs):
-    assert sampler_output[2] == sample_outputs[2]
-
-
-def test_sampler_output_setitem(sampler_output):
-    new_output = CompletionSequenceGroupOutput(samples=[
-        SequenceOutput(parent_seq_id=0, output_token=99, logprobs={})
-    ],
-                                               prompt_logprobs=None)
-    sampler_output[2] = new_output
-    assert sampler_output[2] == new_output
-
-
-def test_sampler_output_len(sampler_output, sample_outputs):
-    assert len(sampler_output) == len(sample_outputs)
-
-
-def test_sampler_output_eq(sample_outputs):
-    sampler_output1 = SamplerOutput(outputs=sample_outputs)
-    sampler_output2 = SamplerOutput(outputs=sample_outputs.copy())
-    sampler_output3 = SamplerOutput(outputs=sample_outputs[:-1])
-    assert sampler_output1 == sampler_output2
-    assert sampler_output1 != sampler_output3
-
-
-def test_sequence_data_prefill():
-    seq_data = SequenceData.from_seqs([1, 2, 3, 4])
-    assert seq_data.get_num_uncomputed_tokens() == 4
-    assert seq_data.get_num_computed_tokens() == 0
-    # advance by 2
-    seq_data.update_num_computed_tokens(2)
-    assert seq_data.get_num_uncomputed_tokens() == 2
-    assert seq_data.get_num_computed_tokens() == 2
-
-    # advance by 1
-    seq_data.update_num_computed_tokens(1)
-    assert seq_data.get_num_uncomputed_tokens() == 1
-    assert seq_data.get_num_computed_tokens() == 3
-
-    # append tokens and reset, simulating recompute
-    seq_data.append_token_id(1, logprob=0.0)
-    seq_data.reset_state_for_recompute()
-    assert seq_data.get_num_uncomputed_tokens() == 5
-    assert seq_data.get_num_computed_tokens() == 0
-
-
-def test_sequence_group_stage():
-    _, seq_group = create_dummy_prompt("1", 12)
-    assert seq_group.is_prefill() is True
-    seq_group.update_num_computed_tokens(6)
-    assert seq_group.is_prefill() is True
-    seq_group.update_num_computed_tokens(5)
-    assert seq_group.is_prefill() is True
-    seq_group.update_num_computed_tokens(1)
-    assert seq_group.is_prefill() is False
-    seqs = seq_group.get_seqs()
-    assert len(seqs) == 1
-    seqs[0].data.append_token_id(1, logprob=0.0)
-    for seq in seq_group.get_seqs():
-        seq.reset_state_for_recompute()
-    assert seq_group.is_prefill() is True
-    seq_group.update_num_computed_tokens(5)
-    assert seq_group.is_prefill() is True
-    seq_group.update_num_computed_tokens(7)
-    assert seq_group.is_prefill() is True
-    seq_group.update_num_computed_tokens(1)
-    assert seq_group.is_prefill() is False
+from vllm.sequence import IntermediateTensors
 
 
 def test_sequence_intermediate_tensors_equal():