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"""Test functions of configuration.py ."""
from cobra.core import Configuration, Model
from cobra.util.solver import interface_to_str
def test_default_bounds():
"""Verify the default bounds."""
config = Configuration()
assert config.bounds == (-1000.0, 1000.0)
def test_bounds():
"""Test changing bounds."""
config = Configuration()
config.bounds = 100.0, 10000.0
assert config.bounds == (100.0, 10000.0)
# Restore default values.
config.bounds = -1000.0, 1000.0
def test_solver():
"""Test assignment of different solvers."""
config = Configuration()
config.solver = "glpk"
assert interface_to_str(config.solver) == "glpk"
config.solver = "glpk_exact"
assert interface_to_str(config.solver) == "glpk_exact"
# Restore default solver.
config.solver = "glpk"
def test_default_tolerance(model):
"""Verify the default solver tolerance."""
config = Configuration()
config.solver = "glpk"
assert config.tolerance == 1e-07
# Test the consistency between cobra.core.Configuration.tolerance and
# cobra.core.Model.tolerance
assert config.tolerance == model.tolerance
def test_toy_model_tolerance_with_different_default():
"""Verify that different default tolerance is respected by Model."""
config = Configuration()
config.tolerance = 1e-05
toy_model = Model(name="toy model")
assert toy_model.tolerance == 1e-05
def test_tolerance_assignment(model):
"""Test assignment of solver tolerance."""
model.tolerance = 1e-06
assert model.tolerance == 1e-06
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