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"""Unit tests for parameter library"""
# Copyright (C) 2011 Anders Logg
#
# This file is part of DOLFIN.
#
# DOLFIN is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# DOLFIN is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
import pytest
import os
from dolfin import *
from dolfin_utils.test import *
@skip_in_parallel
def test_simple(tempdir):
# Create some parameters
p0 = Parameters("test")
p0.add("filename", "foo.txt")
p0.add("maxiter", 100)
p0.add("tolerance", 0.001)
p0.add("monitor_convergence", True)
# Save to file
f0 = File(os.path.join(tempdir, "test_parameters.xml"))
f0 << p0
# Read from file
p1 = Parameters()
f1 = File(os.path.join(tempdir, "test_parameters.xml"))
f1 >> p1
# Check values
assert p1.name() == "test"
assert p1["filename"] == "foo.txt"
assert p1["maxiter"] == 100
assert p1["tolerance"] == 0.001
assert p1["monitor_convergence"] == True
@skip_in_parallel
def test_gzipped_simple(tempdir):
# Create some parameters
p0 = Parameters("test")
p0.add("filename", "foo.txt")
p0.add("maxiter", 100)
p0.add("tolerance", 0.001)
p0.add("monitor_convergence", True)
# Save to file
f0 = File(os.path.join(tempdir, "test_parameters.xml.gz"))
f0 << p0
# Read from file
p1 = Parameters()
f1 = File(os.path.join(tempdir, "test_parameters.xml.gz"))
f1 >> p1
# Check values
assert p1.name() == "test"
assert p1["filename"] == "foo.txt"
assert p1["maxiter"] == 100
assert p1["tolerance"] == 0.001
assert p1["monitor_convergence"] == True
@skip_in_parallel
def test_nested(tempdir):
# Create some nested parameters
p0 = Parameters("test")
p00 = Parameters("sub0")
p00.add("filename", "foo.txt")
p00.add("maxiter", 100)
p00.add("tolerance", 0.001)
p00.add("monitor_convergence", True)
p0.add("foo", "bar")
p01 = Parameters(p00);
p01.rename("sub1");
p0.add(p00)
p0.add(p01)
# Save to file
f0 = File(os.path.join(tempdir, "test_parameters.xml"))
f0 << p0
# Read from file
p1 = Parameters()
f1 = File(os.path.join(tempdir, "test_parameters.xml"))
f1 >> p1
# Check values
assert p1.name() == "test"
assert p1["foo"] == "bar"
assert p1["sub0"]["filename"] == "foo.txt"
assert p1["sub0"]["maxiter"] == 100
assert p1["sub0"]["tolerance"] == 0.001
assert p1["sub0"]["monitor_convergence"] == True
@skip_in_parallel
def test_parameters_update(tempdir):
p0 = parameters.copy()
p1 = parameters.copy()
p1.update(p0)
@skip_in_parallel
def test_nested_read_existing(tempdir):
"""Test that we can read in a nested parameter database into
an existing (and matching) parameter database"""
file = File(os.path.join(tempdir, "test_parameters.xml"))
file << parameters
p = Parameters("test")
file >> p
file >> p
@skip_in_parallel
def test_solver_parameters():
"Test that global parameters are propagated to solvers"
# Record default values so we can change back
absolute_tolerance = parameters["krylov_solver"]["absolute_tolerance"]
# Set global parameters
parameters["krylov_solver"]["absolute_tolerance"] = 1.23456
# Create solvers
krylov_solver = KrylovSolver()
# Check that parameters propagate to solvers
assert krylov_solver.parameters["absolute_tolerance"] == 1.23456
# Reset parameters so that other tests will continue to work
if absolute_tolerance is not None:
parameters["krylov_solver"]["absolute_tolerance"] = absolute_tolerance
def test_parse_parameters():
def check_pset_and_dict_args(pset, pset_dict):
for k, v in pset_dict.items():
assert pset[k] == v
def create_command_line_args(pset_dict):
# Construct args like: --a=1 --b=2 --c=3
command_line_args1 = ["--" + str(k) + "=" + str(v) for k, v in pset_dict.items()]
# Construct args like: --a 1 --b 2 --c 3
command_line_args2 = [str(element) for k in pset_dict for element in (k, pset_dict[k])]
return command_line_args1, command_line_args2
pset_dict = {
"integer": 1,
"double": 2.5,
"string": "string",
"boolean": False
}
pset = Parameters("test_parse")
for k, v in pset_dict.items():
pset.add(k, v)
command_line_args = create_command_line_args(pset_dict)
pset.parse([""] + command_line_args[0])
check_pset_and_dict_args(pset, pset_dict)
pset.parse([""] + command_line_args[1])
check_pset_and_dict_args(pset, pset_dict)
changed_pset_dict = {
"integer": 2,
"double": 4.5,
"string": "another string",
"boolean": True
}
changed_command_line_args = create_command_line_args(changed_pset_dict)
pset.parse([""] + changed_command_line_args[0])
check_pset_and_dict_args(pset, changed_pset_dict)
pset.parse([""] + changed_command_line_args[1])
check_pset_and_dict_args(pset, changed_pset_dict)
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