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#!/usr/bin/env python
#
# Copyright (c), 2016-2020, SISSA (International School for Advanced Studies).
# All rights reserved.
# This file is distributed under the terms of the MIT License.
# See the file 'LICENSE' in the root directory of the present
# distribution, or http://opensource.org/licenses/MIT.
#
# @author Davide Brunato <brunato@sissa.it>
#
import pathlib
import xml.etree.ElementTree as ElementTree
from xmlschema import XMLSchemaParseError, XMLSchemaValidationError
from xmlschema.validators import XMLSchema11
from xmlschema.validators.identities import IdentityCounter, KeyrefCounter, FieldValueSelector
from xmlschema.testing import XsdValidatorTestCase
class TestXsdIdentities(XsdValidatorTestCase):
cases_dir = pathlib.Path(__file__).parent.joinpath('../test_cases')
def test_key_definition(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
</xs:element>""")
selector = schema.identities['key1'].selector
self.assertTrue(selector.built)
self.assertEqual(repr(selector), "XsdSelector(path='.')")
def test_duplicated_key_name(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
</xs:element>
<xs:element name="secondary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
</xs:element>""", validation='lax')
self.assertEqual(len(schema.all_errors), 2)
self.assertIn("duplicated value ('key1',)", schema.all_errors[0].message)
def test_missing_key_name(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key>
<xs:selector xpath="." />
<xs:field xpath="."/>
</xs:key>
</xs:element>""", validation='lax')
errors = schema.all_errors
if schema.XSD_VERSION == '1.0':
self.assertEqual(len(errors), 3)
self.assertEqual(errors[0].message, "missing required attribute 'name'")
else:
self.assertEqual(len(errors), 3)
self.assertIn("missing key field '@name'", errors[0].message)
def test_missing_selector(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:field xpath="."/>
</xs:key>
</xs:element>""", validation='lax')
errors = schema.all_errors
self.assertEqual(len(errors), 2)
self.assertIn("Unexpected child with tag 'xs:field' at position 1", errors[0].message)
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:annotation/>
</xs:key>
</xs:element>""", validation='lax')
errors = schema.all_errors
self.assertEqual(len(errors), 2 if schema.XSD_VERSION == '1.0' else 1)
self.assertEqual(errors[-1].message, "missing 'selector' declaration")
def test_missing_selector_path(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector /> <!-- missing 'xpath' attribute -->
<xs:field xpath="."/>
</xs:key>
</xs:element>""", validation='lax')
self.assertEqual(len(schema.all_errors), 1)
self.assertEqual(schema.identities['key1'].selector.path, '*')
def test_invalid_selector_path(self):
with self.assertRaises(XMLSchemaParseError) as ctx:
self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="/" /> <!-- Invalid XPath selector expression -->
<xs:field xpath="."/>
</xs:key>
</xs:element>""")
self.assertEqual(ctx.exception.message, "invalid XPath expression for an XsdSelector")
with self.assertRaises(XMLSchemaParseError) as ctx:
self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="xs : *" /> <!-- Invalid XPath expression -->
<xs:field xpath="."/>
</xs:key>
</xs:element>""")
self.assertIn("XPST0003", ctx.exception.message)
def test_invalid_selector_node(self):
with self.assertRaises(XMLSchemaParseError) as ctx:
self.check_schema("""
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element ref="a" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="foo" type="xs:string"/>
</xs:complexType>
<xs:key name="node_key">
<xs:selector xpath="attribute::*"/>
<xs:field xpath="."/>
</xs:key>
</xs:element>
<xs:element name="a" type="xs:string"/>""")
self.assertEqual(ctx.exception.message,
'selector xpath expression can only select elements')
def test_key_validation(self):
schema = self.check_schema("""
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element ref="a" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:key name="node_key">
<xs:selector xpath="./a"/>
<xs:field xpath="."/>
</xs:key>
</xs:element>
<xs:element name="a" type="xs:string"/>""")
self.assertTrue(schema.is_valid('<root><a>alpha</a><a>beta</a></root>'))
self.assertFalse(schema.is_valid('<root><a>alpha</a><a>alpha</a></root>'))
def test_missing_key_field(self):
schema = self.check_schema("""
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element ref="a" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:key name="node_key">
<xs:selector xpath="./a"/>
<xs:field xpath="b"/>
</xs:key>
</xs:element>
<xs:element name="a" type="xs:string"/>""")
with self.assertRaises(XMLSchemaValidationError) as ctx:
schema.validate('<root><a>alpha</a><a>beta</a></root>')
self.assertIn("missing key field 'b'", ctx.exception.reason)
def test_keyref(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1" refer="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>""")
self.assertTrue(schema.identities['keyref1'].built)
refer = schema.identities['keyref1'].refer
schema.identities['keyref1'].build()
self.assertTrue(schema.identities['keyref1'].built)
self.assertIs(schema.identities['keyref1'].refer, refer)
def test_missing_keyref_refer(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1" refer="unknown_key">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>""", validation='lax')
self.assertEqual(len(schema.all_errors), 1)
self.assertEqual(schema.all_errors[0].message,
"key/unique identity constraint 'unknown_key' is missing")
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1" refer="x:key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>""", validation='lax')
self.assertEqual(len(schema.all_errors), 1)
self.assertEqual(schema.all_errors[0].message,
"prefix 'x' not found in namespace map")
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>""", validation='lax')
self.assertEqual(len(schema.all_errors), 2 if schema.XSD_VERSION == '1.0' else 1)
self.assertEqual(schema.all_errors[-1].message, "missing required attribute 'refer'")
def test_wrong_kind_keyref_refer(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1" refer="keyref2">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
<xs:keyref name="keyref2" refer="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>""", validation='lax')
self.assertEqual(len(schema.all_errors), 1)
self.assertIn("reference to a non key/unique identity constraint",
schema.all_errors[0].message)
def test_cardinality_mismatch_keyref_refer(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1" refer="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>""", validation='lax')
self.assertEqual(len(schema.all_errors), 1)
self.assertIn("field cardinality mismatch", schema.all_errors[0].message)
def test_build(self):
schema = self.check_schema("""
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element ref="a" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="b" type="xs:string"/>
</xs:complexType>
<xs:key name="key1">
<xs:selector xpath=".//root/a"/>
<xs:field xpath="@b"/>
</xs:key>
</xs:element>
<xs:element name="a">
<xs:complexType>
<xs:attribute name="b" type="xs:string"/>
</xs:complexType>
</xs:element>""")
self.assertIn(schema.elements['a'], schema.identities['key1'].elements)
self.assertEqual(len(schema.identities['key1'].elements), 1)
self.assertTrue(all(
isinstance(x, FieldValueSelector)
for x in schema.identities['key1'].elements[schema.elements['a']]
))
def test_identity_counter(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
</xs:element>""")
elem = ElementTree.XML('<primary_key>3</primary_key>')
counter = IdentityCounter(schema.identities['key1'], elem)
self.assertEqual(repr(counter), 'IdentityCounter()')
self.assertIsNone(counter.increase(('1',)))
self.assertIsNone(counter.increase(('2',)))
self.assertEqual(repr(counter), "IdentityCounter({('1',): 1, ('2',): 1})")
with self.assertRaises(ValueError) as ctx:
counter.increase(('1',))
self.assertIn("duplicated value ('1',)", str(ctx.exception))
self.assertIsNone(counter.increase(('1',)))
self.assertEqual(counter.counter[('1',)], 3)
def test_keyref_counter(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1" refer="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>""")
elem = ElementTree.XML('<primary_key>3</primary_key>')
counter = KeyrefCounter(schema.identities['keyref1'], elem)
self.assertIsNone(counter.increase(('1',)))
self.assertIsNone(counter.increase(('2',)))
self.assertIsNone(counter.increase(('1',)))
self.assertIsNone(counter.increase(('3',)))
self.assertIsNone(counter.increase(('3',)))
self.assertIsNone(counter.increase(('4',)))
with self.assertRaises(KeyError):
list(counter.iter_errors(identities={}))
key_counter = IdentityCounter(schema.identities['key1'], elem)
self.assertIsNone(key_counter.increase(('1',)))
self.assertIsNone(key_counter.increase('4'))
identities = {schema.identities['key1']: key_counter}
errors = list(counter.iter_errors(identities))
self.assertEqual(len(errors), 2)
self.assertIn("value ('2',) not found", str(errors[0]))
self.assertIn("value ('3',) not found", str(errors[1]))
self.assertIn("(2 times)", str(errors[1]))
def test_key_multiple_values__issue_418(self):
xsd_file = self.casepath('issues/issue_418/issue_418.xsd')
schema = self.schema_class(xsd_file)
xml_file = self.casepath('issues/issue_418/issue_418.xml')
self.assertIsNone(schema.validate(xml_file))
xml_file = self.casepath('issues/issue_418/issue_418-invalid.xml')
with self.assertRaises(XMLSchemaValidationError) as ctx:
schema.validate(xml_file)
self.assertIn("field selects multiple values", str(ctx.exception))
class TestXsd11Identities(TestXsdIdentities):
schema_class = XMLSchema11
def test_key_reference_definition(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
</xs:element>
<xs:element name="secondary_key" type="xs:string">
<xs:key ref="key1"/>
</xs:element>""")
key1 = schema.identities['key1']
self.assertIsNot(schema.elements['secondary_key'].identities[0], key1)
self.assertIs(schema.elements['secondary_key'].identities[0].ref, key1)
def test_missing_key_reference_definition(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
</xs:element>
<xs:element name="secondary_key" type="xs:string">
<xs:key ref="unknown_key"/>
</xs:element>""", validation='lax')
errors = schema.all_errors
self.assertEqual(len(errors), 1)
self.assertEqual("unknown identity constraint 'unknown_key'", errors[0].message)
def test_different_kind_key_reference_definition(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
</xs:element>
<xs:element name="secondary_key" type="xs:string">
<xs:unique ref="key1"/>
</xs:element>""", validation='lax')
errors = schema.all_errors
self.assertEqual(len(errors), 1)
self.assertEqual("attribute 'ref' points to a different kind constraint",
errors[0].message)
def test_keyref_reference_definition(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:key>
<xs:keyref name="keyref1" refer="key1">
<xs:selector xpath="."/>
<xs:field xpath="."/>
</xs:keyref>
</xs:element>
<xs:element name="secondary_key" type="xs:string">
<xs:keyref ref="keyref1"/>
</xs:element>""")
self.assertIsNot(schema.elements['secondary_key'].identities[0],
schema.elements['primary_key'].identities[-1])
self.assertIs(schema.elements['secondary_key'].identities[0].ref,
schema.elements['primary_key'].identities[-1])
def test_xsi_type_substitution__issue_446(self):
xsd_file = self.casepath('features/substitutions/words.xsd')
schema = self.schema_class(xsd_file)
xml_data = '<words><word>foo</word></words>'
self.assertTrue(schema.is_valid(xml_data))
xml_data = '<words><word>foo</word><word>foo</word></words>'
self.assertFalse(schema.is_valid(xml_data))
xml_file = self.casepath('features/substitutions/words1.xml')
self.assertTrue(schema.is_valid(xml_file))
xml_file = self.casepath('features/substitutions/words2.xml')
self.assertTrue(schema.is_valid(xml_file))
xml_file = self.casepath('features/substitutions/words3.xml')
self.assertFalse(schema.is_valid(xml_file))
xml_file = self.casepath('features/substitutions/words4.xml')
self.assertFalse(schema.is_valid(xml_file))
def test_selector_default_namespace(self):
schema = self.check_schema("""
<xs:element name="primary_key" type="xs:string">
<xs:key name="key1">
<xs:selector xpath="." xpathDefaultNamespace="https://xmlschema.test/ns"/>
<xs:field xpath="." xpathDefaultNamespace="##targetNamespace"/>
</xs:key>
</xs:element>""")
self.assertEqual(schema.identities['key1'].selector.xpath_default_namespace,
'https://xmlschema.test/ns')
self.assertEqual(schema.identities['key1'].fields[0].xpath_default_namespace, '')
if __name__ == '__main__':
from xmlschema.testing import run_xmlschema_tests
run_xmlschema_tests('identities')
|
