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# Copyright 2013-2018 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
"""Test for multi_method dispatch."""
import pytest
import spack.repo
from spack.multimethod import NoSuchMethodError
pytestmark = pytest.mark.usefixtures('mock_packages')
@pytest.fixture(scope='module',
params=['multimethod', 'multimethod-inheritor'])
def pkg_name(request):
"""Make tests run on both multimethod and multimethod-inheritor.
This means we test all of our @when methods on a class that uses them
directly, AND on a class that inherits them.
"""
return request.param
def test_no_version_match(pkg_name):
pkg = spack.repo.get(pkg_name + '@2.0')
with pytest.raises(NoSuchMethodError):
pkg.no_version_2()
def test_one_version_match(pkg_name):
pkg = spack.repo.get(pkg_name + '@1.0')
assert pkg.no_version_2() == 1
pkg = spack.repo.get(pkg_name + '@3.0')
assert pkg.no_version_2() == 3
pkg = spack.repo.get(pkg_name + '@4.0')
assert pkg.no_version_2() == 4
def test_version_overlap(pkg_name):
pkg = spack.repo.get(pkg_name + '@2.0')
assert pkg.version_overlap() == 1
pkg = spack.repo.get(pkg_name + '@5.0')
assert pkg.version_overlap() == 2
def test_mpi_version(pkg_name):
pkg = spack.repo.get(pkg_name + '^mpich@3.0.4')
assert pkg.mpi_version() == 3
pkg = spack.repo.get(pkg_name + '^mpich2@1.2')
assert pkg.mpi_version() == 2
pkg = spack.repo.get(pkg_name + '^mpich@1.0')
assert pkg.mpi_version() == 1
def test_undefined_mpi_version(pkg_name):
pkg = spack.repo.get(pkg_name + '^mpich@0.4')
assert pkg.mpi_version() == 1
pkg = spack.repo.get(pkg_name + '^mpich@1.4')
assert pkg.mpi_version() == 1
def test_default_works(pkg_name):
pkg = spack.repo.get(pkg_name + '%gcc')
assert pkg.has_a_default() == 'gcc'
pkg = spack.repo.get(pkg_name + '%intel')
assert pkg.has_a_default() == 'intel'
pkg = spack.repo.get(pkg_name + '%pgi')
assert pkg.has_a_default() == 'default'
def test_target_match(pkg_name):
platform = spack.architecture.platform()
targets = list(platform.targets.values())
for target in targets[:-1]:
pkg = spack.repo.get(pkg_name + ' target=' + target.name)
assert pkg.different_by_target() == target.name
pkg = spack.repo.get(pkg_name + ' target=' + targets[-1].name)
if len(targets) == 1:
assert pkg.different_by_target() == targets[-1].name
else:
with pytest.raises(NoSuchMethodError):
pkg.different_by_target()
def test_dependency_match(pkg_name):
pkg = spack.repo.get(pkg_name + '^zmpi')
assert pkg.different_by_dep() == 'zmpi'
pkg = spack.repo.get(pkg_name + '^mpich')
assert pkg.different_by_dep() == 'mpich'
# If we try to switch on some entirely different dep, it's ambiguous,
# but should take the first option
pkg = spack.repo.get(pkg_name + '^foobar')
assert pkg.different_by_dep() == 'mpich'
def test_virtual_dep_match(pkg_name):
pkg = spack.repo.get(pkg_name + '^mpich2')
assert pkg.different_by_virtual_dep() == 2
pkg = spack.repo.get(pkg_name + '^mpich@1.0')
assert pkg.different_by_virtual_dep() == 1
def test_multimethod_with_base_class(pkg_name):
pkg = spack.repo.get(pkg_name + '@3')
assert pkg.base_method() == pkg.spec.name
pkg = spack.repo.get(pkg_name + '@1')
assert pkg.base_method() == "base_method"
def test_multimethod_inherited_and_overridden():
pkg = spack.repo.get('multimethod-inheritor@1.0')
assert pkg.inherited_and_overridden() == 'inheritor@1.0'
pkg = spack.repo.get('multimethod-inheritor@2.0')
assert pkg.inherited_and_overridden() == 'base@2.0'
pkg = spack.repo.get('multimethod@1.0')
assert pkg.inherited_and_overridden() == 'base@1.0'
pkg = spack.repo.get('multimethod@2.0')
assert pkg.inherited_and_overridden() == 'base@2.0'
def test_multimethod_diamond_inheritance():
pkg = spack.repo.get('multimethod-diamond@1.0')
assert pkg.diamond_inheritance() == 'base_package'
pkg = spack.repo.get('multimethod-base@1.0')
assert pkg.diamond_inheritance() == 'base_package'
pkg = spack.repo.get('multimethod-diamond@2.0')
assert pkg.diamond_inheritance() == 'first_parent'
pkg = spack.repo.get('multimethod-inheritor@2.0')
assert pkg.diamond_inheritance() == 'first_parent'
pkg = spack.repo.get('multimethod-diamond@3.0')
assert pkg.diamond_inheritance() == 'second_parent'
pkg = spack.repo.get('multimethod-diamond-parent@3.0')
assert pkg.diamond_inheritance() == 'second_parent'
pkg = spack.repo.get('multimethod-diamond@4.0')
assert pkg.diamond_inheritance() == 'subclass'
def test_multimethod_boolean(pkg_name):
pkg = spack.repo.get(pkg_name)
assert pkg.boolean_true_first() == 'True'
assert pkg.boolean_false_first() == 'True'
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