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1c593e117d
Signed-off-by: Luka Govedič <luka.govedic@gmail.com> Signed-off-by: Luka Govedič <ProExpertProg@users.noreply.github.com> Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: ProExpertProg <11367180+ProExpertProg@users.noreply.github.com> Co-authored-by: Luka Govedič <luka.govedic@gmail.com> Co-authored-by: Luka Govedič <ProExpertProg@users.noreply.github.com>
258 lines
9.7 KiB
Python
258 lines
9.7 KiB
Python
# SPDX-License-Identifier: Apache-2.0
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# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
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import json
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import tempfile
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from pathlib import Path
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import pytest
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from vllm.benchmarks.sweep.param_sweep import ParameterSweep, ParameterSweepItem
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class TestParameterSweepItem:
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"""Test ParameterSweepItem functionality."""
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@pytest.mark.parametrize(
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"input_dict,expected",
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[
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(
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{"compilation_config.use_inductor_graph_partition": False},
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"--compilation-config.use_inductor_graph_partition=false",
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),
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(
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{"compilation_config.use_inductor_graph_partition": True},
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"--compilation-config.use_inductor_graph_partition=true",
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),
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(
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{"compilation_config.use_inductor": False},
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"--compilation-config.use_inductor=false",
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),
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(
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{"compilation_config.use_inductor": True},
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"--compilation-config.use_inductor=true",
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),
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],
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)
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def test_nested_boolean_params(self, input_dict, expected):
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"""Test that nested boolean params use =true/false syntax."""
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item = ParameterSweepItem.from_record(input_dict)
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cmd = item.apply_to_cmd(["vllm", "serve", "model"])
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assert expected in cmd
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@pytest.mark.parametrize(
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"input_dict,expected",
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[
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({"enable_prefix_caching": False}, "--no-enable-prefix-caching"),
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({"enable_prefix_caching": True}, "--enable-prefix-caching"),
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({"disable_log_stats": False}, "--no-disable-log-stats"),
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({"disable_log_stats": True}, "--disable-log-stats"),
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],
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)
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def test_non_nested_boolean_params(self, input_dict, expected):
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"""Test that non-nested boolean params use --no- prefix."""
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item = ParameterSweepItem.from_record(input_dict)
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cmd = item.apply_to_cmd(["vllm", "serve", "model"])
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assert expected in cmd
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@pytest.mark.parametrize(
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"compilation_config",
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[
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{"cudagraph_mode": "full", "mode": 2, "use_inductor_graph_partition": True},
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{
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"cudagraph_mode": "piecewise",
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"mode": 3,
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"use_inductor_graph_partition": False,
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},
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],
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)
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def test_nested_dict_value(self, compilation_config):
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"""Test that nested dict values are serialized as JSON."""
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item = ParameterSweepItem.from_record(
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{"compilation_config": compilation_config}
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)
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cmd = item.apply_to_cmd(["vllm", "serve", "model"])
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assert "--compilation-config" in cmd
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# The dict should be JSON serialized
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idx = cmd.index("--compilation-config")
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assert json.loads(cmd[idx + 1]) == compilation_config
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@pytest.mark.parametrize(
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"input_dict,expected_key,expected_value",
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[
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({"model": "test-model"}, "--model", "test-model"),
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({"max_tokens": 100}, "--max-tokens", "100"),
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({"temperature": 0.7}, "--temperature", "0.7"),
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],
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)
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def test_string_and_numeric_values(self, input_dict, expected_key, expected_value):
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"""Test that string and numeric values are handled correctly."""
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item = ParameterSweepItem.from_record(input_dict)
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cmd = item.apply_to_cmd(["vllm", "serve"])
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assert expected_key in cmd
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assert expected_value in cmd
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@pytest.mark.parametrize(
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"input_dict,expected_key,key_idx_offset",
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[
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({"max_tokens": 200}, "--max-tokens", 1),
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({"enable_prefix_caching": False}, "--no-enable-prefix-caching", 0),
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],
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)
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def test_replace_existing_parameter(self, input_dict, expected_key, key_idx_offset):
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"""Test that existing parameters in cmd are replaced."""
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item = ParameterSweepItem.from_record(input_dict)
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if key_idx_offset == 1:
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# Key-value pair
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cmd = item.apply_to_cmd(["vllm", "serve", "--max-tokens", "100", "model"])
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assert expected_key in cmd
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idx = cmd.index(expected_key)
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assert cmd[idx + 1] == "200"
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assert "100" not in cmd
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else:
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# Boolean flag
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cmd = item.apply_to_cmd(
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["vllm", "serve", "--enable-prefix-caching", "model"]
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)
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assert expected_key in cmd
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assert "--enable-prefix-caching" not in cmd
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class TestParameterSweep:
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"""Test ParameterSweep functionality."""
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def test_from_records_list(self):
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"""Test creating ParameterSweep from a list of records."""
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records = [
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{"max_tokens": 100, "temperature": 0.7},
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{"max_tokens": 200, "temperature": 0.9},
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]
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sweep = ParameterSweep.from_records(records)
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assert len(sweep) == 2
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assert sweep[0]["max_tokens"] == 100
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assert sweep[1]["max_tokens"] == 200
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def test_read_from_dict(self):
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"""Test creating ParameterSweep from a dict format."""
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data = {
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"experiment1": {"max_tokens": 100, "temperature": 0.7},
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"experiment2": {"max_tokens": 200, "temperature": 0.9},
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}
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sweep = ParameterSweep.read_from_dict(data)
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assert len(sweep) == 2
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# Check that items have the _benchmark_name field
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names = {item["_benchmark_name"] for item in sweep}
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assert names == {"experiment1", "experiment2"}
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# Check that parameters are preserved
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for item in sweep:
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if item["_benchmark_name"] == "experiment1":
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assert item["max_tokens"] == 100
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assert item["temperature"] == 0.7
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elif item["_benchmark_name"] == "experiment2":
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assert item["max_tokens"] == 200
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assert item["temperature"] == 0.9
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def test_read_json_list_format(self):
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"""Test reading JSON file with list format."""
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records = [
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{"max_tokens": 100, "temperature": 0.7},
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{"max_tokens": 200, "temperature": 0.9},
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]
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with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False) as f:
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json.dump(records, f)
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temp_path = Path(f.name)
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try:
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sweep = ParameterSweep.read_json(temp_path)
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assert len(sweep) == 2
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assert sweep[0]["max_tokens"] == 100
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assert sweep[1]["max_tokens"] == 200
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finally:
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temp_path.unlink()
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def test_read_json_dict_format(self):
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"""Test reading JSON file with dict format."""
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data = {
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"experiment1": {"max_tokens": 100, "temperature": 0.7},
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"experiment2": {"max_tokens": 200, "temperature": 0.9},
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}
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with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False) as f:
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json.dump(data, f)
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temp_path = Path(f.name)
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try:
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sweep = ParameterSweep.read_json(temp_path)
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assert len(sweep) == 2
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# Check that items have the _benchmark_name field
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names = {item["_benchmark_name"] for item in sweep}
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assert names == {"experiment1", "experiment2"}
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finally:
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temp_path.unlink()
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def test_unique_benchmark_names_validation(self):
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"""Test that duplicate _benchmark_name values raise an error."""
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# Test with duplicate names in list format
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records = [
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{"_benchmark_name": "exp1", "max_tokens": 100},
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{"_benchmark_name": "exp1", "max_tokens": 200},
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]
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with pytest.raises(ValueError, match="Duplicate _benchmark_name values"):
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ParameterSweep.from_records(records)
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def test_unique_benchmark_names_multiple_duplicates(self):
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"""Test validation with multiple duplicate names."""
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records = [
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{"_benchmark_name": "exp1", "max_tokens": 100},
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{"_benchmark_name": "exp1", "max_tokens": 200},
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{"_benchmark_name": "exp2", "max_tokens": 300},
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{"_benchmark_name": "exp2", "max_tokens": 400},
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]
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with pytest.raises(ValueError, match="Duplicate _benchmark_name values"):
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ParameterSweep.from_records(records)
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def test_no_benchmark_names_allowed(self):
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"""Test that records without _benchmark_name are allowed."""
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records = [
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{"max_tokens": 100, "temperature": 0.7},
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{"max_tokens": 200, "temperature": 0.9},
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]
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sweep = ParameterSweep.from_records(records)
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assert len(sweep) == 2
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def test_mixed_benchmark_names_allowed(self):
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"""Test that mixing records with and without _benchmark_name is allowed."""
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records = [
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{"_benchmark_name": "exp1", "max_tokens": 100},
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{"max_tokens": 200, "temperature": 0.9},
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]
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sweep = ParameterSweep.from_records(records)
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assert len(sweep) == 2
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class TestParameterSweepItemKeyNormalization:
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"""Test key normalization in ParameterSweepItem."""
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def test_underscore_to_hyphen_conversion(self):
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"""Test that underscores are converted to hyphens in CLI."""
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item = ParameterSweepItem.from_record({"max_tokens": 100})
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cmd = item.apply_to_cmd(["vllm", "serve"])
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assert "--max-tokens" in cmd
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def test_nested_key_preserves_suffix(self):
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"""Test that nested keys preserve the suffix format."""
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# The suffix after the dot should preserve underscores
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item = ParameterSweepItem.from_record(
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{"compilation_config.some_nested_param": "value"}
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)
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cmd = item.apply_to_cmd(["vllm", "serve"])
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# The prefix (compilation_config) gets converted to hyphens,
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# but the suffix (some_nested_param) is preserved
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assert any("compilation-config.some_nested_param" in arg for arg in cmd)
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