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improve flakey test reliability #2246

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improve flakey test reliability #2246

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10 changes: 9 additions & 1 deletion ax/core/tests/test_experiment.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,10 @@
from typing import Dict, List, Type
from unittest.mock import MagicMock, patch

import numpy as np

import pandas as pd
import torch
from ax.core import BatchTrial, Trial
from ax.core.arm import Arm
from ax.core.base_trial import TrialStatus
Expand Down Expand Up @@ -1388,10 +1391,15 @@ def test_WarmStartMapData(self) -> None:
@fast_botorch_optimize
def test_batch_with_multiple_generator_runs(self) -> None:
exp = get_branin_experiment()
sobol = Models.SOBOL(experiment=exp, search_space=exp.search_space)
# set seed to avoid transient errors caused by duplicate arms,
# which leads to fewer arms in the trial than expected.
seed = 0
sobol = Models.SOBOL(experiment=exp, search_space=exp.search_space, seed=seed)
exp.new_batch_trial(generator_runs=[sobol.gen(n=7)]).run().complete()

data = exp.fetch_data()
torch.manual_seed(seed)
np.random.seed(seed)
gp = Models.BOTORCH_MODULAR(
experiment=exp, search_space=exp.search_space, data=data
)
Expand Down
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