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import shutil
import tempfile
import spack
from spack.spec import Spec
from spack.database import Database
from spack.directory_layout import YamlDirectoryLayout
from spack.test.mock_packages_test import MockPackagesTest
class MockDatabase(MockPackagesTest):
def _mock_install(self, spec):
s = Spec(spec)
s.concretize()
pkg = spack.repo.get(s)
pkg.do_install(fake=True)
def _mock_remove(self, spec):
specs = spack.installed_db.query(spec)
assert len(specs) == 1
spec = specs[0]
spec.package.do_uninstall(spec)
def setUp(self):
super(MockDatabase, self).setUp()
#
# TODO: make the mockup below easier.
#
# Make a fake install directory
self.install_path = tempfile.mkdtemp()
self.spack_install_path = spack.install_path
spack.install_path = self.install_path
self.install_layout = YamlDirectoryLayout(self.install_path)
self.spack_install_layout = spack.install_layout
spack.install_layout = self.install_layout
# Make fake database and fake install directory.
self.installed_db = Database(self.install_path)
self.spack_installed_db = spack.installed_db
spack.installed_db = self.installed_db
# make a mock database with some packages installed note that
# the ref count for dyninst here will be 3, as it's recycled
# across each install.
#
# Here is what the mock DB looks like:
#
# o mpileaks o mpileaks' o mpileaks''
# |\ |\ |\
# | o callpath | o callpath' | o callpath''
# |/| |/| |/|
# o | mpich o | mpich2 o | zmpi
# | | o | fake
# | | |
# | |______________/
# | .____________/
# |/
# o dyninst
# |\
# | o libdwarf
# |/
# o libelf
#
# Transaction used to avoid repeated writes.
with spack.installed_db.write_transaction():
self._mock_install('mpileaks ^mpich')
self._mock_install('mpileaks ^mpich2')
self._mock_install('mpileaks ^zmpi')
def tearDown(self):
for spec in spack.installed_db.query():
spec.package.do_uninstall(spec)
super(MockDatabase, self).tearDown()
shutil.rmtree(self.install_path)
spack.install_path = self.spack_install_path
spack.install_layout = self.spack_install_layout
spack.installed_db = self.spack_installed_db
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