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"""
some more specific Literal tests are in test_literal.py
"""
import base64
import unittest
import random
from rdflib.term import URIRef, BNode, Literal, _is_valid_unicode
from rdflib.graph import QuotedGraph, Graph
from rdflib.namespace import XSD
def uformat(s):
return s.replace("u'", "'")
class TestURIRefRepr(unittest.TestCase):
"""
see also test_literal.TestRepr
"""
def testSubclassNameAppearsInRepr(self):
class MyURIRef(URIRef):
pass
x = MyURIRef("http://example.com/")
self.assertEqual(repr(x), uformat("MyURIRef(u'http://example.com/')"))
def testGracefulOrdering(self):
u = URIRef("cake")
g = Graph()
a = u > u
a = u > BNode()
a = u > QuotedGraph(g.store, u)
a = u > g
class TestBNodeRepr(unittest.TestCase):
def testSubclassNameAppearsInRepr(self):
class MyBNode(BNode):
pass
x = MyBNode()
self.assertTrue(repr(x).startswith("MyBNode("))
class TestLiteral(unittest.TestCase):
def test_base64_values(self):
b64msg = "cmRmbGliIGlzIGNvb2whIGFsc28gaGVyZSdzIHNvbWUgYmluYXJ5IAAR83UC"
decoded_b64msg = base64.b64decode(b64msg)
lit = Literal(b64msg, datatype=XSD.base64Binary)
self.assertEqual(lit.value, decoded_b64msg)
self.assertEqual(str(lit), b64msg)
def test_total_order(self):
types = {
XSD.dateTime: (
"2001-01-01T00:00:00",
"2001-01-01T00:00:00Z",
"2001-01-01T00:00:00-00:00",
),
XSD.date: ("2001-01-01", "2001-01-01Z", "2001-01-01-00:00"),
XSD.time: ("00:00:00", "00:00:00Z", "00:00:00-00:00"),
XSD.gYear: ("2001", "2001Z", "2001-00:00"), # interval
XSD.gYearMonth: ("2001-01", "2001-01Z", "2001-01-00:00"),
}
literals = [
Literal(literal, datatype=t)
for t, literals in types.items()
for literal in literals
]
try:
sorted(literals)
orderable = True
except TypeError as e:
for l_ in literals:
print(repr(l_), repr(l_.value))
print(e)
orderable = False
self.assertTrue(orderable)
# also make sure that within a datetime things are still ordered:
l1 = [
Literal(l_, datatype=XSD.dateTime)
for l_ in [
"2001-01-01T00:00:00",
"2001-01-01T01:00:00",
"2001-01-01T01:00:01",
"2001-01-02T01:00:01",
"2001-01-01T00:00:00Z",
"2001-01-01T00:00:00-00:00",
"2001-01-01T01:00:00Z",
"2001-01-01T01:00:00-00:00",
"2001-01-01T00:00:00-01:30",
"2001-01-01T01:00:00-01:30",
"2001-01-02T01:00:01Z",
"2001-01-02T01:00:01-00:00",
"2001-01-02T01:00:01-01:30",
]
]
l2 = list(l1)
random.shuffle(l2)
self.assertListEqual(l1, sorted(l2))
def test_literal_add(self):
from decimal import Decimal
# compares Python decimals
def isclose(a, b, rel_tol=1e-09, abs_tol=0.0):
a = float(a)
b = float(b)
return abs(a - b) <= max(rel_tol * max(abs(a), abs(b)), abs_tol)
cases = [
(1, Literal(1), Literal(1), Literal(2)),
(2, Literal(Decimal(1)), Literal(Decimal(1)), Literal(Decimal(2))),
(3, Literal(float(1)), Literal(float(1)), Literal(float(2))),
(4, Literal(1), Literal(1.1), Literal(2.1, datatype=XSD.decimal)),
(5, Literal(1.1), Literal(1.1), Literal(2.2)),
(
6,
Literal(Decimal(1)),
Literal(Decimal(1.1)),
Literal(Decimal(2.1), datatype=XSD.decimal),
),
(7, Literal(Decimal(1.1)), Literal(Decimal(1.1)), Literal(Decimal(2.2))),
(8, Literal(float(1)), Literal(float(1.1)), Literal(float(2.1))),
(9, Literal(float(1.1)), Literal(float(1.1)), Literal(float(2.2))),
(10, Literal(-1), Literal(-1), Literal(-2)),
(12, Literal(Decimal(-1)), Literal(Decimal(-1)), Literal(Decimal(-2))),
(13, Literal(float(-1)), Literal(float(-1)), Literal(float(-2))),
(14, Literal(-1), Literal(-1.1), Literal(-2.1)),
(15, Literal(-1.1), Literal(-1.1), Literal(-2.2)),
(16, Literal(Decimal(-1)), Literal(Decimal(-1.1)), Literal(Decimal(-2.1))),
(
17,
Literal(Decimal(-1.1)),
Literal(Decimal(-1.1)),
Literal(Decimal(-2.2)),
),
(18, Literal(float(-1)), Literal(float(-1.1)), Literal(float(-2.1))),
(19, Literal(float(-1.1)), Literal(float(-1.1)), Literal(float(-2.2))),
(20, Literal(1), Literal(1.0), Literal(2.0)),
(21, Literal(1.0), Literal(1.0), Literal(2.0)),
(22, Literal(Decimal(1)), Literal(Decimal(1.0)), Literal(Decimal(2.0))),
(23, Literal(Decimal(1.0)), Literal(Decimal(1.0)), Literal(Decimal(2.0))),
(24, Literal(float(1)), Literal(float(1.0)), Literal(float(2.0))),
(25, Literal(float(1.0)), Literal(float(1.0)), Literal(float(2.0))),
(
26,
Literal(1, datatype=XSD.integer),
Literal(1, datatype=XSD.integer),
Literal(2, datatype=XSD.integer),
),
(
27,
Literal(1, datatype=XSD.integer),
Literal("1", datatype=XSD.integer),
Literal("2", datatype=XSD.integer),
),
(
28,
Literal("1", datatype=XSD.integer),
Literal("1", datatype=XSD.integer),
Literal("2", datatype=XSD.integer),
),
(
29,
Literal("1"),
Literal("1", datatype=XSD.integer),
Literal("11", datatype=XSD.string),
),
(
30,
Literal(1),
Literal("1", datatype=XSD.integer),
Literal("2", datatype=XSD.integer),
),
(
31,
Literal(Decimal(1), datatype=XSD.decimal),
Literal(Decimal(1), datatype=XSD.decimal),
Literal(Decimal(2), datatype=XSD.decimal),
),
(
32,
Literal(Decimal(1)),
Literal(Decimal(1), datatype=XSD.decimal),
Literal(Decimal(2), datatype=XSD.decimal),
),
(
33,
Literal(float(1)),
Literal(float(1), datatype=XSD.float),
Literal(float(2), datatype=XSD.float),
),
(
34,
Literal(float(1), datatype=XSD.float),
Literal(float(1), datatype=XSD.float),
Literal(float(2), datatype=XSD.float),
),
(35, Literal(1), 1, Literal(2)),
(36, Literal(1), 1.0, Literal(2, datatype=XSD.decimal)),
(37, Literal(1.0), 1, Literal(2, datatype=XSD.decimal)),
(38, Literal(1.0), 1.0, Literal(2.0)),
(39, Literal(Decimal(1.0)), Decimal(1), Literal(Decimal(2.0))),
(40, Literal(Decimal(1.0)), Decimal(1.0), Literal(Decimal(2.0))),
(41, Literal(float(1.0)), float(1), Literal(float(2.0))),
(42, Literal(float(1.0)), float(1.0), Literal(float(2.0))),
(
43,
Literal(1, datatype=XSD.integer),
"+1.1",
Literal("1+1.1", datatype=XSD.string),
),
(
44,
Literal(1, datatype=XSD.integer),
Literal("+1.1", datatype=XSD.string),
Literal("1+1.1", datatype=XSD.string),
),
(
45,
Literal(Decimal(1.0), datatype=XSD.integer),
Literal("1", datatype=XSD.string),
Literal("11", datatype=XSD.string),
),
(
46,
Literal(1.1, datatype=XSD.integer),
Literal("1", datatype=XSD.string),
Literal("1.11", datatype=XSD.string),
),
(
47,
Literal(1, datatype=XSD.integer),
None,
Literal(1, datatype=XSD.integer),
),
(
48,
Literal("1", datatype=XSD.string),
None,
Literal("1", datatype=XSD.string),
),
]
for case in cases:
# see if the addition exactly matches the expected output
case_passed = (case[1] + case[2]) == (case[3])
# see if the addition almost matches the expected output, for decimal precision errors
if not case_passed:
try:
case_passed = isclose((case[1] + case[2].value), case[3].value)
except:
pass
if not case_passed:
print(case[1], case[2])
print("expected: " + case[3] + ", " + case[3].datatype)
print(
"actual: "
+ (case[1] + case[2])
+ ", "
+ (case[1] + case[2]).datatype
)
self.assertTrue(case_passed, "Case " + str(case[0]) + " failed")
class TestValidityFunctions(unittest.TestCase):
def test_is_valid_unicode(self):
testcase_list = (
(None, True),
(1, True),
(["foo"], True),
({"foo": b"bar"}, True),
("foo", True),
(b"foo\x00", True),
(b"foo\xf3\x02", False),
)
for val, expected in testcase_list:
self.assertEqual(_is_valid_unicode(val), expected)
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