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##############################################################################
# Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://github.com/spack/spack
# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
#
# This program 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) version 2.1, February 1999.
#
# This program 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 terms and
# conditions of the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##############################################################################
"""Test YAML serialization for specs.
YAML format preserves DAG information in the spec.
"""
from collections import Iterable, Mapping
import spack.util.spack_json as sjson
import spack.util.spack_yaml as syaml
from spack.spec import Spec
from spack.util.spack_yaml import syaml_dict
def check_yaml_round_trip(spec):
yaml_text = spec.to_yaml()
spec_from_yaml = Spec.from_yaml(yaml_text)
assert spec.eq_dag(spec_from_yaml)
def test_simple_spec():
spec = Spec('mpileaks')
check_yaml_round_trip(spec)
def test_normal_spec(builtin_mock):
spec = Spec('mpileaks+debug~opt')
spec.normalize()
check_yaml_round_trip(spec)
def test_external_spec(config, builtin_mock):
spec = Spec('externaltool')
spec.concretize()
check_yaml_round_trip(spec)
spec = Spec('externaltest')
spec.concretize()
check_yaml_round_trip(spec)
def test_ambiguous_version_spec(builtin_mock):
spec = Spec('mpileaks@1.0:5.0,6.1,7.3+debug~opt')
spec.normalize()
check_yaml_round_trip(spec)
def test_concrete_spec(config, builtin_mock):
spec = Spec('mpileaks+debug~opt')
spec.concretize()
check_yaml_round_trip(spec)
def test_yaml_multivalue():
spec = Spec('multivalue_variant foo="bar,baz"')
spec.concretize()
check_yaml_round_trip(spec)
def test_yaml_subdag(config, builtin_mock):
spec = Spec('mpileaks^mpich+debug')
spec.concretize()
yaml_spec = Spec.from_yaml(spec.to_yaml())
for dep in ('callpath', 'mpich', 'dyninst', 'libdwarf', 'libelf'):
assert spec[dep].eq_dag(yaml_spec[dep])
def test_using_ordered_dict(builtin_mock):
""" Checks that dicts are ordered
Necessary to make sure that dag_hash is stable across python
versions and processes.
"""
def descend_and_check(iterable, level=0):
if isinstance(iterable, Mapping):
assert isinstance(iterable, syaml_dict)
return descend_and_check(iterable.values(), level=level + 1)
max_level = level
for value in iterable:
if isinstance(value, Iterable) and not isinstance(value, str):
nlevel = descend_and_check(value, level=level + 1)
if nlevel > max_level:
max_level = nlevel
return max_level
specs = ['mpileaks ^zmpi', 'dttop', 'dtuse']
for spec in specs:
dag = Spec(spec)
dag.normalize()
from pprint import pprint
pprint(dag.to_node_dict())
break
level = descend_and_check(dag.to_node_dict())
# level just makes sure we are doing something here
assert level >= 5
def test_ordered_read_not_required_for_consistent_dag_hash(
config, builtin_mock
):
"""Make sure ordered serialization isn't required to preserve hashes.
For consistent hashes, we require that YAML and json documents
have their keys serialized in a deterministic order. However, we
don't want to require them to be serialized in order. This
ensures that is not required.
"""
specs = ['mpileaks ^zmpi', 'dttop', 'dtuse']
for spec in specs:
spec = Spec(spec)
spec.concretize()
#
# Dict & corresponding YAML & JSON from the original spec.
#
spec_dict = spec.to_dict()
spec_yaml = spec.to_yaml()
spec_json = spec.to_json()
#
# Make a spec with reversed OrderedDicts for every
# OrderedDict in the original.
#
reversed_spec_dict = reverse_all_dicts(spec.to_dict())
#
# Dump to YAML and JSON
#
yaml_string = syaml.dump(spec_dict, default_flow_style=False)
reversed_yaml_string = syaml.dump(reversed_spec_dict,
default_flow_style=False)
json_string = sjson.dump(spec_dict)
reversed_json_string = sjson.dump(reversed_spec_dict)
#
# Do many consistency checks
#
# spec yaml is ordered like the spec dict
assert yaml_string == spec_yaml
assert json_string == spec_json
# reversed string is different from the original, so it
# *would* generate a different hash
assert yaml_string != reversed_yaml_string
assert json_string != reversed_json_string
# build specs from the "wrongly" ordered data
round_trip_yaml_spec = Spec.from_yaml(yaml_string)
round_trip_json_spec = Spec.from_json(json_string)
round_trip_reversed_yaml_spec = Spec.from_yaml(
reversed_yaml_string
)
round_trip_reversed_json_spec = Spec.from_yaml(
reversed_json_string
)
# TODO: remove this when build deps are in provenance.
spec = spec.copy(deps=('link', 'run'))
# specs are equal to the original
assert spec == round_trip_yaml_spec
assert spec == round_trip_json_spec
assert spec == round_trip_reversed_yaml_spec
assert spec == round_trip_reversed_json_spec
assert round_trip_yaml_spec == round_trip_reversed_yaml_spec
assert round_trip_json_spec == round_trip_reversed_json_spec
# dag_hashes are equal
assert spec.dag_hash() == round_trip_yaml_spec.dag_hash()
assert spec.dag_hash() == round_trip_json_spec.dag_hash()
assert spec.dag_hash() == round_trip_reversed_yaml_spec.dag_hash()
assert spec.dag_hash() == round_trip_reversed_json_spec.dag_hash()
def reverse_all_dicts(data):
"""Descend into data and reverse all the dictionaries"""
if isinstance(data, dict):
return syaml_dict(reversed(
[(reverse_all_dicts(k), reverse_all_dicts(v))
for k, v in data.items()]))
elif isinstance(data, (list, tuple)):
return type(data)(reverse_all_dicts(elt) for elt in data)
else:
return data
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