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test_add_property.py 10.16 KiB
# -*- encoding: utf-8 -*-
#
# ** header v3.0
# This file is a part of the LinkAhead Project.
#
# Copyright (C) 2018 Research Group Biomedical Physics,
# Max-Planck-Institute for Dynamics and Self-Organization Göttingen
# Copyright (C) 2020 Indiscale GmbH <info@indiscale.com>
# Copyright (C) 2020 Timm Fitschen <f.fitschen@indiscale.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# 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
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
# ** end header
#
from pytest import raises
import linkahead as db
def test_no_parameter():
rec = db.Record()
assert 0 == len(rec.get_properties())
with raises(UserWarning) as cm:
rec.add_property()
assert cm.value.args[0] == ("This method expects you to pass at "
"least an entity, a name or an id.")
assert 0 == len(rec.get_properties())
def test_only_value_parameter():
rec = db.Record()
assert 0 == len(rec.get_properties())
with raises(UserWarning) as cm:
rec.add_property(value="bla")
assert cm.value.args[0] == ("This method expects you to pass at "
"least an entity, a name or an id.")
assert 0 == len(rec.get_properties())
def test_property_name_ambiguity_1():
rec = db.Record()
assert 0 == len(rec.get_properties())
with raises(UserWarning) as cm:
rec.add_property("one_name", name="another_name")
assert cm.value.args[0] == ("The first parameter was neither an "
"instance of Entity nor an integer. "
"Therefore the string representation of "
"your first parameter would normally be "
"interpreted name of the property which "
"is to be added. But you have also "
"specified a parameter 'name' in the "
"method call. This is ambiguous and "
"cannot be processed.")
assert 0 == len(rec.get_properties())
def test_property_name_ambiguity_2():
rec = db.Record()
assert 0 == len(rec.get_properties())
with raises(UserWarning) as cm:
rec.add_property({}, name="another_name")
assert cm.value.args[0] == ("The first parameter was neither an "
"instance of Entity nor an integer. "
"Therefore the string representation of "
"your first parameter would normally be "
"interpreted name of the property which "
"is to be added. But you have also "
"specified a parameter 'name' in the "
"method call. This is ambiguous and "
"cannot be processed.")
assert 0 == len(rec.get_properties())
def test_property_id_ambiguity():
rec = db.Record()
assert 0 == len(rec.get_properties())
with raises(UserWarning) as cm:
rec.add_property(25, id=26)
assert cm.value.args[0] == ("The first parameter was an integer which "
"would normally be interpreted as the id of "
"the property which is to be added. But you "
"have also specified a parameter 'id' in the "
"method call. This is ambiguous and cannot be "
"processed.")
assert 0 == len(rec.get_properties())
def test_property_parameter_with_entity():
rec = db.Record()
abstract_property = db.Property(
name="length",
id=512,
datatype=db.DOUBLE,
unit="m",
description="This is the length of something.")
assert 0 == len(rec.get_properties())
rec.add_property(abstract_property)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property("length")
assert concrete_property is not None
assert concrete_property.name == "length"
assert concrete_property.id == 512
assert concrete_property.description == "This is the length of something."
assert concrete_property.unit == "m"
assert concrete_property.datatype == db.DOUBLE
assert concrete_property._wrapped_entity == abstract_property
def test_property_parameter_with_entity_and_value():
rec = db.Record()
abstract_property = db.Property(
name="length",
id=512,
datatype=db.DOUBLE,
unit="m",
description="This is the length of something.")
assert 0 == len(rec.get_properties())
rec.add_property(abstract_property, 3.14)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property("length")
assert concrete_property is not None
assert concrete_property.name == "length"
assert concrete_property.id == 512
assert concrete_property.description == "This is the length of something."
assert concrete_property.unit == "m"
assert concrete_property.value == 3.14
assert concrete_property.datatype == db.DOUBLE
assert concrete_property._wrapped_entity == abstract_property
def test_property_parameter_with_id():
rec = db.Record()
assert 0 == len(rec.get_properties())
rec.add_property(512)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property(512)
assert concrete_property is not None
assert concrete_property.id == 512
def test_property_parameter_with_id_and_value():
rec = db.Record()
assert 0 == len(rec.get_properties())
rec.add_property(512, 3.14)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property(512)
assert concrete_property is not None
assert concrete_property.id == 512
assert concrete_property.value == 3.14
def test_datatype():
rec = db.Record()
assert 0 == len(rec.get_properties())
rec.add_property(512, 3.14)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property(512)
assert concrete_property is not None
assert concrete_property.id == 512
assert concrete_property.value == 3.14
def test_property_parameter_with_entity_and_datatype():
rec = db.Record()
abstract_property = db.Property(
name="length",
id=512,
datatype=db.DOUBLE,
unit="m",
description="This is the length of something.")
assert 0 == len(rec.get_properties())
rec.add_property(abstract_property, 300, datatype=db.INTEGER)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property("length")
assert concrete_property is not None
assert concrete_property.name == "length"
assert concrete_property.id == 512
assert concrete_property.description == "This is the length of something."
assert concrete_property.unit == "m"
assert concrete_property.value == 300
assert concrete_property.datatype == db.INTEGER
assert id(concrete_property._wrapped_entity) == id(abstract_property)
concrete_property.value = None
with raises(ValueError):
# cannot parse 3.14 to integer
concrete_property.value = 3.14
assert concrete_property.value is None
assert concrete_property.datatype == db.INTEGER
concrete_property.datatype = db.DOUBLE
concrete_property.value = 3.14
with raises(ValueError):
# cannot parse 3.14 to integer
concrete_property.datatype = db.INTEGER
# nothing should've changed after the ValueError
assert concrete_property.datatype == db.DOUBLE
assert concrete_property.value == 3.14
def test_kw_name_and_value():
rec = db.Record()
assert 0 == len(rec.get_properties())
rec.add_property(name="length", value=3.14)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property("length")
assert concrete_property is not None
assert concrete_property.value == 3.14
def test_kw_id_and_value():
rec = db.Record()
assert 0 == len(rec.get_properties())
rec.add_property(id=512, value=3.14)
assert 1 == len(rec.get_properties())
concrete_property = rec.get_property(512)
assert concrete_property is not None
assert concrete_property.value == 3.14
def test_add_list_of_entitities():
rec = db.Record()
values = []
for i in range(10):
values.append(db.Record(name=str(i)))
rec.add_property("listOfEntities", values)
for e in rec.get_property("listOfEntities").value:
assert e.id is None
i = 0
for val in values:
val.id = i
i += 1
i = 0
for e in rec.get_property("listOfEntities").value:
assert i == e.id
i += 1
def test_add_property_with_wrong_role():
entity = db.Entity()
r = db.Record()
rt = db.RecordType()
p = db.Property()
f = db.File()
e = db.Entity()
entity.add_property(rt)
entity.add_property(p)
entity.add_property(e)
with raises(ValueError) as cm:
entity.add_property(r)
assert cm.value.args[0] == ("The property parameter is a Record. This is "
"very unusual and probably not what you want. "
"Otherwise, construct a property from a "
"Record using the Property class and add that "
"to this entity.")
with raises(ValueError) as cm:
entity.add_property(f)
assert cm.value.args[0] == ("The property parameter is a File. This is "
"very unusual and probably not what you want. "
"Otherwise, construct a property from a File "
"using the Property class and add that to "
"this entity.")