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from pyasn1.type import constraint, error
from pyasn1.error import PyAsn1Error
from sys import version_info
if version_info[0:2] < (2, 7) or \
version_info[0:2] in ( (3, 0), (3, 1) ):
try:
import unittest2 as unittest
except ImportError:
import unittest
else:
import unittest
class SingleValueConstraintTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.SingleValueConstraint(1,2)
self.c2 = constraint.SingleValueConstraint(3,4)
def testCmp(self): assert self.c1 == self.c1, 'comparation fails'
def testHash(self): assert hash(self.c1) != hash(self.c2), 'hash() fails'
def testGoodVal(self):
try:
self.c1(1)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1(4)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class ContainedSubtypeConstraintTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ContainedSubtypeConstraint(
constraint.SingleValueConstraint(12)
)
def testGoodVal(self):
try:
self.c1(12)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1(4)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class ValueRangeConstraintTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ValueRangeConstraint(1,4)
def testGoodVal(self):
try:
self.c1(1)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1(-5)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class ValueSizeConstraintTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ValueSizeConstraint(1,2)
def testGoodVal(self):
try:
self.c1('a')
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1('abc')
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class PermittedAlphabetConstraintTestCase(SingleValueConstraintTestCase):
def setUp(self):
self.c1 = constraint.PermittedAlphabetConstraint('A', 'B', 'C')
self.c2 = constraint.PermittedAlphabetConstraint('DEF')
def testGoodVal(self):
try:
self.c1('A')
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1('E')
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class ConstraintsIntersectionTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ConstraintsIntersection(
constraint.SingleValueConstraint(4),
constraint.ValueRangeConstraint(2, 4)
)
def testCmp1(self):
assert constraint.SingleValueConstraint(4) in self.c1, '__cmp__() fails'
def testCmp2(self):
assert constraint.SingleValueConstraint(5) not in self.c1, \
'__cmp__() fails'
def testCmp3(self):
c = constraint.ConstraintsUnion(constraint.ConstraintsIntersection(
constraint.SingleValueConstraint(4),
constraint.ValueRangeConstraint(2, 4)
))
assert self.c1 in c, '__cmp__() fails'
def testCmp4(self):
c = constraint.ConstraintsUnion(
constraint.ConstraintsIntersection(constraint.SingleValueConstraint(5))
)
assert self.c1 not in c, '__cmp__() fails'
def testGoodVal(self):
try:
self.c1(4)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1(-5)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class InnerTypeConstraintTestCase(unittest.TestCase):
def testConst1(self):
c = constraint.InnerTypeConstraint(
constraint.SingleValueConstraint(4)
)
try:
c(4, 32)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
try:
c(5, 32)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
def testConst2(self):
c = constraint.InnerTypeConstraint(
(0, constraint.SingleValueConstraint(4), 'PRESENT'),
(1, constraint.SingleValueConstraint(4), 'ABSENT')
)
try:
c(4, 0)
except error.ValueConstraintError:
raise
assert 0, 'constraint check fails'
try:
c(4, 1)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
try:
c(3, 0)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
# Constraints compositions
class ConstraintsIntersectionTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ConstraintsIntersection(
constraint.ValueRangeConstraint(1, 9),
constraint.ValueRangeConstraint(2, 5)
)
def testGoodVal(self):
try:
self.c1(3)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1(0)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class ConstraintsUnionTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ConstraintsUnion(
constraint.SingleValueConstraint(5),
constraint.ValueRangeConstraint(1, 3)
)
def testGoodVal(self):
try:
self.c1(2)
self.c1(5)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1(-5)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
class ConstraintsExclusionTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ConstraintsExclusion(
constraint.ValueRangeConstraint(2, 4)
)
def testGoodVal(self):
try:
self.c1(6)
except error.ValueConstraintError:
assert 0, 'constraint check fails'
def testBadVal(self):
try:
self.c1(2)
except error.ValueConstraintError:
pass
else:
assert 0, 'constraint check fails'
# Constraints derivations
class DirectDerivationTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.SingleValueConstraint(5)
self.c2 = constraint.ConstraintsUnion(
self.c1, constraint.ValueRangeConstraint(1, 3)
)
def testGoodVal(self):
assert self.c1.isSuperTypeOf(self.c2), 'isSuperTypeOf failed'
assert not self.c1.isSubTypeOf(self.c2) , 'isSubTypeOf failed'
def testBadVal(self):
assert not self.c2.isSuperTypeOf(self.c1) , 'isSuperTypeOf failed'
assert self.c2.isSubTypeOf(self.c1) , 'isSubTypeOf failed'
class IndirectDerivationTestCase(unittest.TestCase):
def setUp(self):
self.c1 = constraint.ConstraintsIntersection(
constraint.ValueRangeConstraint(1, 30)
)
self.c2 = constraint.ConstraintsIntersection(
self.c1, constraint.ValueRangeConstraint(1, 20)
)
self.c2 = constraint.ConstraintsIntersection(
self.c2, constraint.ValueRangeConstraint(1, 10)
)
def testGoodVal(self):
assert self.c1.isSuperTypeOf(self.c2), 'isSuperTypeOf failed'
assert not self.c1.isSubTypeOf(self.c2) , 'isSubTypeOf failed'
def testBadVal(self):
assert not self.c2.isSuperTypeOf(self.c1) , 'isSuperTypeOf failed'
assert self.c2.isSubTypeOf(self.c1) , 'isSubTypeOf failed'
if __name__ == '__main__': unittest.main()
# how to apply size constriants to constructed types?
|
