# -*- coding: utf-8 -*-
"""Test functionalities of ACHRSampler."""
from __future__ import absolute_import
import numpy as np
import pytest
from cobra.sampling import ACHRSampler
[docs]def test_achr_init_benchmark(model, benchmark):
"""Benchmark inital ACHR sampling."""
benchmark(lambda: ACHRSampler(model))
[docs]def test_achr_sample_benchmark(achr, benchmark):
"""Benchmark ACHR sampling."""
benchmark(achr.sample, 1)
[docs]def test_validate_wrong_sample(achr, model):
"""Test sample correctness."""
s = achr.sample(10)
s["hello"] = 1
with pytest.raises(ValueError):
achr.validate(s)
[docs]def test_sampling(achr):
"""Test sampling."""
s = achr.sample(10)
assert all(achr.validate(s) == "v")
[docs]def test_batch_sampling(achr):
"""Test batch sampling."""
for b in achr.batch(5, 4):
assert all(achr.validate(b) == "v")
[docs]def test_variables_samples(achr):
"""Test variable samples."""
vnames = np.array([v.name for v in achr.model.variables])
s = achr.sample(10, fluxes=False)
assert s.shape == (10, achr.warmup.shape[1])
assert (s.columns == vnames).all()
assert (achr.validate(s) == "v").all()