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# Copyright (c) 2015 The Johns Hopkins University/Applied Physics Laboratory
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import testtools
from kmip.core import exceptions
from kmip.core import primitives
from kmip.core import utils
class TestInterval(testtools.TestCase):
"""
Test suite for the Interval primitive.
"""
def setUp(self):
super(TestInterval, self).setUp()
# Encoding and value based on Section 9.1.2 of the KMIP 1.1
# specification.
self.value = 864000
self.encoding = (
b'\x42\x00\x00\x0A\x00\x00\x00\x04\x00\x0D\x2F\x00\x00\x00\x00'
b'\x00')
self.encoding_bad_length = (
b'\x42\x00\x00\x0A\x00\x00\x00\x05\x00\x0D\x2F\x00\x00\x00\x00'
b'\x00')
self.encoding_bad_padding = (
b'\x42\x00\x00\x0A\x00\x00\x00\x04\x00\x0D\x2F\x00\x00\x00\x00'
b'\xFF')
def tearDown(self):
super(TestInterval, self).tearDown()
def test_init(self):
"""
Test that an Interval can be instantiated.
"""
interval = primitives.Interval(1)
self.assertEqual(1, interval.value)
def test_init_unset(self):
"""
Test that an Interval can be instantiated with no input.
"""
interval = primitives.Interval()
self.assertEqual(0, interval.value)
def test_validate_on_invalid_type(self):
"""
Test that a TypeError is thrown on input of invalid type (e.g., str).
"""
self.assertRaises(TypeError, primitives.Interval, 'invalid')
def test_validate_on_invalid_value_too_big(self):
"""
Test that a ValueError is thrown on input that is too large.
"""
self.assertRaises(
ValueError, primitives.Interval, primitives.Interval.MAX + 1)
def test_validate_on_invalid_value_too_small(self):
"""
Test that a ValueError is thrown on input that is too small.
"""
self.assertRaises(
ValueError, primitives.Interval, primitives.Interval.MIN - 1)
def test_read(self):
"""
Test that an Interval can be read from a byte stream.
"""
stream = utils.BytearrayStream(self.encoding)
interval = primitives.Interval()
interval.read(stream)
self.assertEqual(self.value, interval.value)
def test_read_on_invalid_length(self):
"""
Test that an InvalidPrimitiveLength exception is thrown when attempting
to decode an Interval with an invalid length.
"""
stream = utils.BytearrayStream(self.encoding_bad_length)
interval = primitives.Interval()
self.assertRaises(
exceptions.InvalidPrimitiveLength, interval.read, stream)
def test_read_on_invalid_padding(self):
"""
Test that an InvalidPaddingBytes exception is thrown when attempting
to decode an Interval with invalid padding bytes.
"""
stream = utils.BytearrayStream(self.encoding_bad_padding)
interval = primitives.Interval()
self.assertRaises(
exceptions.InvalidPaddingBytes, interval.read, stream)
def test_write(self):
"""
Test that an Interval can be written to a byte stream.
"""
stream = utils.BytearrayStream()
interval = primitives.Interval(self.value)
interval.write(stream)
result = stream.read()
self.assertEqual(len(self.encoding), len(result))
self.assertEqual(self.encoding, result)
def test_repr(self):
"""
Test that the representation of a Interval is formatted properly.
"""
long_int = primitives.Interval()
value = "value={0}".format(long_int.value)
tag = "tag={0}".format(long_int.tag)
self.assertEqual(
"Interval({0}, {1})".format(value, tag), repr(long_int))
def test_str(self):
"""
Test that the string representation of a Interval is formatted
properly.
"""
self.assertEqual("0", str(primitives.Interval()))
def test_equal_on_equal(self):
"""
Test that the equality operator returns True when comparing two
Intervals.
"""
a = primitives.Interval(1)
b = primitives.Interval(1)
self.assertTrue(a == b)
self.assertTrue(b == a)
def test_equal_on_equal_and_empty(self):
"""
Test that the equality operator returns True when comparing two
Intervals.
"""
a = primitives.Interval()
b = primitives.Interval()
self.assertTrue(a == b)
self.assertTrue(b == a)
def test_equal_on_not_equal(self):
"""
Test that the equality operator returns False when comparing two
Intervals with different values.
"""
a = primitives.Interval(1)
b = primitives.Interval(2)
self.assertFalse(a == b)
self.assertFalse(b == a)
def test_equal_on_type_mismatch(self):
"""
Test that the equality operator returns False when comparing a
Interval to a non-Interval object.
"""
a = primitives.Interval()
b = 'invalid'
self.assertFalse(a == b)
self.assertFalse(b == a)
def test_not_equal_on_equal(self):
"""
Test that the inequality operator returns False when comparing
two Intervals with the same values.
"""
a = primitives.Interval(1)
b = primitives.Interval(1)
self.assertFalse(a != b)
self.assertFalse(b != a)
def test_not_equal_on_equal_and_empty(self):
"""
Test that the inequality operator returns False when comparing
two Intervals.
"""
a = primitives.Interval()
b = primitives.Interval()
self.assertFalse(a != b)
self.assertFalse(b != a)
def test_not_equal_on_not_equal(self):
"""
Test that the inequality operator returns True when comparing two
Intervals with different values.
"""
a = primitives.Interval(1)
b = primitives.Interval(2)
self.assertTrue(a != b)
self.assertTrue(b != a)
def test_not_equal_on_type_mismatch(self):
"""
Test that the inequality operator returns True when comparing a
Interval to a non-Interval object.
"""
a = primitives.Interval()
b = 'invalid'
self.assertTrue(a != b)
self.assertTrue(b != a)
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