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"""
Part of the tagit test suite.
A copy of the license is provided with the project.
Author: Matthias Baumgartner, 2022
"""
# imports
import unittest
# bsfs imports
from bsfs import schema as _schema
from bsfs.namespace import ns
from bsfs.query import ast
from bsfs.utils import errors
# objects to test
from bsfs.query.validator import Filter
## code ##
class TestFilter(unittest.TestCase):
def setUp(self):
self.schema = _schema.from_string('''
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix xsd: <http://www.w3.org/2001/XMLSchema#>
prefix bsfs: <http://bsfs.ai/schema/>
prefix bse: <http://bsfs.ai/schema/Entity#>
bsfs:Entity rdfs:subClassOf bsfs:Node .
bsfs:URI rdfs:subClassOf bsfs:Literal .
bsfs:Tag rdfs:subClassOf bsfs:Node .
xsd:string rdfs:subClassOf bsfs:Literal .
bsfs:Number rdfs:subClassOf bsfs:Literal .
xsd:integer rdfs:subClassOf bsfs:Number .
bse:comment rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Node ;
rdfs:range xsd:string ;
bsfs:unique "false"^^xsd:boolean .
bse:filesize rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Entity ;
rdfs:range xsd:integer ;
bsfs:unique "true"^^xsd:boolean .
bse:tag rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Entity ;
rdfs:range bsfs:Tag ;
bsfs:unique "false"^^xsd:boolean .
bse:label rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Tag ;
rdfs:range xsd:string ;
bsfs:unique "true"^^xsd:boolean .
bse:buddy rdfs:subClassOf bsfs:Predicate ;
rdfs:domain bsfs:Entity ;
rdfs:range bsfs:Node ;
bsfs:unique "false"^^xsd:boolean .
''')
self.validate = Filter(self.schema)
def test_call(self):
# root_type must be a _schema.Node
self.assertRaises(TypeError, self.validate, 1234, None)
self.assertRaises(TypeError, self.validate, '1234', None)
self.assertRaises(TypeError, self.validate, self.schema.literal(ns.bsfs.URI), None)
# root_type must exist in the schema
self.assertRaises(errors.ConsistencyError, self.validate, self.schema.node(ns.bsfs.Node).child(ns.bsfs.Image), None)
self.assertRaises(errors.ConsistencyError, self.validate, self.schema.node(ns.bsfs.Entity).child(ns.bsfs.Image), None)
# valid query returns true
self.assertTrue(self.validate(self.schema.node(ns.bsfs.Entity),
ast.filter.Any(ast.filter.OneOf(ns.bse.tag, ns.bse.buddy),
ast.filter.Or(
ast.filter.Is('http://example.com/symbol#1234'),
ast.filter.All(ns.bse.comment, ast.filter.StartsWith('foo')),
ast.filter.And(
ast.filter.Has(ns.bse.comment, ast.filter.Or(
ast.filter.GreaterThan(5),
ast.filter.LessThan(1),
)
),
ast.filter.Not(ast.filter.Any(ns.bse.comment,
ast.filter.Not(ast.filter.Equals('hello world')))),
)))))
# invalid paths raise consistency error
self.assertRaises(errors.ConsistencyError, self.validate, self.schema.node(ns.bsfs.Entity),
ast.filter.Any(ast.filter.OneOf(ns.bse.tag, ns.bse.buddy),
ast.filter.Or(
ast.filter.All(ns.bse.comment, ast.filter.Equals('hello world')),
ast.filter.All(ns.bse.label, ast.filter.Equals('hello world')), # domain mismatch
)))
def test_routing(self):
self.assertRaises(errors.BackendError, self.validate._parse_filter_expression, ast.filter.FilterExpression(), self.schema.node(ns.bsfs.Node))
self.assertRaises(errors.BackendError, self.validate._parse_predicate_expression, ast.filter.PredicateExpression())
def test_predicate(self):
# predicate must be in the schema
self.assertRaises(errors.ConsistencyError, self.validate._predicate, ast.filter.Predicate(ns.bse.invalid))
# predicate must have a range
self.assertRaises(errors.BackendError, self.validate._predicate, ast.filter.Predicate(ns.bsfs.Predicate))
# predicate returns domain and range
self.assertEqual(self.validate._predicate(ast.filter.Predicate(ns.bse.tag)),
(self.schema.node(ns.bsfs.Entity), self.schema.node(ns.bsfs.Tag)))
# reverse is applied
self.assertEqual(self.validate._predicate(ast.filter.Predicate(ns.bse.tag, reverse=True)),
(self.schema.node(ns.bsfs.Tag), self.schema.node(ns.bsfs.Entity)))
def test_one_of(self):
# domains must both be nodes or literals
self.assertRaises(errors.ConsistencyError, self.validate._one_of, ast.filter.OneOf(ns.bse.tag, ast.filter.Predicate(ns.bse.label, reverse=True)))
# domains must be related
self.assertRaises(errors.ConsistencyError, self.validate._one_of, ast.filter.OneOf(ns.bse.tag, ns.bse.label))
# ranges must both be nodes or literals
self.assertRaises(errors.ConsistencyError, self.validate._one_of, ast.filter.OneOf(ns.bse.tag, ns.bse.comment))
# ranges must be related
self.assertRaises(errors.ConsistencyError, self.validate._one_of, ast.filter.OneOf(ns.bse.tag, ast.filter.Predicate(ns.bse.buddy, reverse=True)))
# one_of returns most specific domain
self.assertEqual(self.validate._one_of(ast.filter.OneOf(ns.bse.comment, ns.bse.label)),
(self.schema.node(ns.bsfs.Tag), self.schema.literal(ns.xsd.string)))
# one_of returns the most generic range
self.assertEqual(self.validate._one_of(ast.filter.OneOf(ns.bse.tag, ns.bse.buddy)),
(self.schema.node(ns.bsfs.Entity), self.schema.node(ns.bsfs.Node)))
def test_branch(self):
# type must be a node
self.assertRaises(errors.ConsistencyError, self.validate._branch, self.schema.literal(ns.bsfs.Literal), None)
# type must be in the schema
self.assertRaises(errors.ConsistencyError, self.validate._branch, self.schema.node(ns.bsfs.Node).child(ns.bsfs.Invalid), None)
# predicate is verified
self.assertRaises(errors.ConsistencyError, self.validate._branch, self.schema.node(ns.bsfs.Entity),
ast.filter.Any(ns.bsfs.Invalid, ast.filter.Is('http://example.com/entity#1234')))
# predicate must match the domain
self.assertRaises(errors.ConsistencyError, self.validate._branch, self.schema.node(ns.bsfs.Node),
ast.filter.Any(ns.bse.tag, ast.filter.Is('http://example.com/tag#1234')))
self.assertRaises(errors.ConsistencyError, self.validate._branch, self.schema.node(ns.bsfs.Tag),
ast.filter.Any(ns.bse.tag, ast.filter.Is('http://example.com/tag#1234')))
# child expression must be valid
self.assertRaises(errors.ConsistencyError, self.validate._branch, self.schema.node(ns.bsfs.Entity),
ast.filter.Any(ns.bse.tag, ast.filter.Equals('hello world')))
# branch accepts valid expressions
self.assertIsNone(self.validate._branch(self.schema.node(ns.bsfs.Entity),
ast.filter.Any(ns.bse.tag, ast.filter.Is('http://example.com/entity#1234'))))
self.assertIsNone(self.validate._branch(self.schema.node(ns.bsfs.Entity),
ast.filter.All(ns.bse.tag, ast.filter.Is('http://example.com/entity#1234'))))
def test_agg(self):
# agg evaluates child expressions
self.assertRaises(errors.ConsistencyError, self.validate._agg, self.schema.node(ns.bsfs.Entity),
ast.filter.And(ast.filter.Is('http://example.com/entity#1234'), ast.filter.Equals('hello world')))
self.assertRaises(errors.ConsistencyError, self.validate._agg, self.schema.literal(ns.xsd.string),
ast.filter.And(ast.filter.Is('http://example.com/entity#1234'), ast.filter.Equals('hello world')))
self.assertRaises(errors.ConsistencyError, self.validate._agg, self.schema.node(ns.bsfs.Entity),
ast.filter.Or(ast.filter.Is('http://example.com/entity#1234'), ast.filter.Equals('hello world')))
self.assertRaises(errors.ConsistencyError, self.validate._agg, self.schema.literal(ns.xsd.string),
ast.filter.Or(ast.filter.Is('http://example.com/entity#1234'), ast.filter.Equals('hello world')))
# agg works on nodes
self.assertIsNone(self.validate._agg(self.schema.node(ns.bsfs.Entity),
ast.filter.And(ast.filter.Is('http://example.com/entity#1234'), ast.filter.Is('http://example.com/entity#4321'))))
self.assertIsNone(self.validate._agg(self.schema.node(ns.bsfs.Entity),
ast.filter.Or(ast.filter.Is('http://example.com/entity#1234'), ast.filter.Is('http://example.com/entity#4321'))))
# agg works on literals
self.assertIsNone(self.validate._agg(self.schema.literal(ns.xsd.string),
ast.filter.And(ast.filter.Equals('foobar'), ast.filter.Equals('hello world'))))
self.assertIsNone(self.validate._agg(self.schema.literal(ns.xsd.string),
ast.filter.Or(ast.filter.Equals('foobar'), ast.filter.Equals('hello world'))))
def test_not(self):
# not evaluates child expressions
self.assertRaises(errors.ConsistencyError, self.validate._not, self.schema.node(ns.bsfs.Entity),
ast.filter.Not(ast.filter.Equals('hello world')))
self.assertRaises(errors.ConsistencyError, self.validate._not, self.schema.literal(ns.xsd.string),
ast.filter.Not(ast.filter.Is('http://example.com/entity#1234')))
# not works on nodes
self.assertIsNone(self.validate._not(self.schema.node(ns.bsfs.Entity),
ast.filter.Not(ast.filter.Is('http://example.com/entity#1234'))))
# not works on literals
self.assertIsNone(self.validate._not(self.schema.literal(ns.xsd.string),
ast.filter.Not(ast.filter.Equals('hello world'))))
def test_has(self):
# type must be node
self.assertRaises(errors.ConsistencyError, self.validate._has, self.schema.literal(ns.bsfs.Literal),
ast.filter.Has(ns.bse.tag))
# type must be in the schema
self.assertRaises(errors.ConsistencyError, self.validate._has, self.schema.node(ns.bsfs.Node).child(ns.bsfs.Invalid),
ast.filter.Has(ns.bse.tag))
# has checks predicate
self.assertRaises(errors.ConsistencyError, self.validate._has, self.schema.node(ns.bsfs.Entity),
ast.filter.Has(ns.bse.invalid))
# predicate must match domain
self.assertRaises(errors.ConsistencyError, self.validate._has, self.schema.node(ns.bsfs.Tag),
ast.filter.Has(ns.bse.tag))
# has checks count expression
self.assertRaises(errors.ConsistencyError, self.validate._has, self.schema.node(ns.bsfs.Entity),
ast.filter.Has(ns.bse.tag, ast.filter.Is('http://example.com/entity#1234')))
# has accepts correct expressions
self.assertIsNone(self.validate._has(self.schema.node(ns.bsfs.Entity), ast.filter.Has(ns.bse.tag, ast.filter.GreaterThan(5))))
def test_is(self):
# type must be node
self.assertRaises(errors.ConsistencyError, self.validate._is, self.schema.literal(ns.bsfs.Literal),
ast.filter.Is('http://example.com/foo'))
# type must be in the schema
self.assertRaises(errors.ConsistencyError, self.validate._is, self.schema.node(ns.bsfs.Node).child(ns.bsfs.Invalid),
ast.filter.Is('http://example.com/foo'))
# is accepts correct expressions
self.assertIsNone(self.validate._is(self.schema.node(ns.bsfs.Entity), ast.filter.Is('http://example.com/entity#1234')))
def test_value(self):
# type must be literal
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.node(ns.bsfs.Node),
ast.filter.Equals('hello world'))
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.node(ns.bsfs.Node),
ast.filter.Substring('hello world'))
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.node(ns.bsfs.Node),
ast.filter.StartsWith('hello world'))
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.node(ns.bsfs.Node),
ast.filter.EndsWith('hello world'))
# type must be in the schema
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.literal(ns.bsfs.Literal).child(ns.bsfs.Invalid),
ast.filter.Equals('hello world'))
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.literal(ns.bsfs.Literal).child(ns.bsfs.Invalid),
ast.filter.Substring('hello world'))
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.literal(ns.bsfs.Literal).child(ns.bsfs.Invalid),
ast.filter.StartsWith('hello world'))
self.assertRaises(errors.ConsistencyError, self.validate._value, self.schema.literal(ns.bsfs.Literal).child(ns.bsfs.Invalid),
ast.filter.EndsWith('hello world'))
# value accepts correct expressions
self.assertIsNone(self.validate._value(self.schema.literal(ns.xsd.string), ast.filter.Equals('hello world')))
self.assertIsNone(self.validate._value(self.schema.literal(ns.xsd.string), ast.filter.Substring('hello world')))
self.assertIsNone(self.validate._value(self.schema.literal(ns.xsd.string), ast.filter.StartsWith('hello world')))
self.assertIsNone(self.validate._value(self.schema.literal(ns.xsd.string), ast.filter.EndsWith('hello world')))
def test_bounded(self):
# type must be literal
self.assertRaises(errors.ConsistencyError, self.validate._bounded, self.schema.node(ns.bsfs.Node),
ast.filter.GreaterThan(0))
self.assertRaises(errors.ConsistencyError, self.validate._bounded, self.schema.node(ns.bsfs.Node),
ast.filter.LessThan(0))
# type must be in the schema
self.assertRaises(errors.ConsistencyError, self.validate._bounded, self.schema.literal(ns.bsfs.Literal).child(ns.bsfs.Invalid),
ast.filter.GreaterThan(0))
self.assertRaises(errors.ConsistencyError, self.validate._bounded, self.schema.literal(ns.bsfs.Literal).child(ns.bsfs.Invalid),
ast.filter.LessThan(0))
# type must be a number
self.assertRaises(errors.ConsistencyError, self.validate._bounded, self.schema.literal(ns.xsd.string),
ast.filter.LessThan(0))
# bounded accepts correct expressions
self.assertIsNone(self.validate._bounded(self.schema.literal(ns.xsd.integer), ast.filter.LessThan(0)))
self.assertIsNone(self.validate._bounded(self.schema.literal(ns.xsd.integer), ast.filter.GreaterThan(0)))
## main ##
if __name__ == '__main__':
unittest.main()
## EOF ##
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