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# *****************************************************************************
#
# 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.
#
# See NOTICE file for details.
#
# *****************************************************************************
import _jpype
import jpype
from jpype.types import *
from jpype import java
import sys
import logging
import time
import common
try:
import numpy as np
except ImportError:
pass
class JByteTestCase(common.JPypeTestCase):
def setUp(self):
common.JPypeTestCase.setUp(self)
self.fixture = jpype.JClass("jpype.common.Fixture")()
@common.requireInstrumentation
def testConversionFault(self):
_jpype.fault("JPByteType::findJavaConversion")
with self.assertRaisesRegex(SystemError, "fault"):
JByte._canConvertToJava(object())
@common.requireInstrumentation
def testArrayFaults(self):
ja = JArray(JByte)(5)
_jpype.fault("JPByteType::setArrayRange")
with self.assertRaisesRegex(SystemError, "fault"):
ja[1:3] = [0, 0]
_jpype.fault("JPJavaFrame::NewByteArray")
with self.assertRaisesRegex(SystemError, "fault"):
JArray(JByte)(1)
_jpype.fault("JPJavaFrame::SetByteArrayRegion")
with self.assertRaisesRegex(SystemError, "fault"):
ja[0] = 0
_jpype.fault("JPJavaFrame::GetByteArrayRegion")
with self.assertRaisesRegex(SystemError, "fault"):
print(ja[0])
_jpype.fault("JPJavaFrame::GetByteArrayElements")
with self.assertRaises(BufferError):
memoryview(ja[0:3])
_jpype.fault("JPJavaFrame::ReleaseByteArrayElements")
with self.assertRaisesRegex(SystemError, "fault"):
ja[0:3] = bytes([1, 2, 3])
_jpype.fault("JPJavaFrame::ReleaseByteArrayElements")
with self.assertRaisesRegex(SystemError, "fault"):
jpype.JObject(ja[::2], jpype.JObject)
_jpype.fault("JPJavaFrame::ReleaseByteArrayElements")
def f():
# Special case no fault is allowed
memoryview(ja[0:3])
f()
def testByteFromInt(self):
self.assertEqual(self.fixture.callByte(int(123)), 123)
@common.requireNumpy
def testByteFromNPInt(self):
import numpy as np
self.assertEqual(self.fixture.callByte(np.int_(123)), 123)
@common.requireNumpy
def testByteFromNPInt8(self):
import numpy as np
self.assertEqual(self.fixture.callByte(np.int8(123)), 123)
self.assertEqual(self.fixture.callByte(np.uint8(123)), 123)
@common.requireNumpy
def testByteFromNPInt16(self):
import numpy as np
self.assertEqual(self.fixture.callByte(np.int16(123)), 123)
self.assertEqual(self.fixture.callByte(np.uint16(123)), 123)
@common.requireNumpy
def testByteFromNPInt32(self):
import numpy as np
self.assertEqual(self.fixture.callByte(np.int32(123)), 123)
self.assertEqual(self.fixture.callByte(np.uint32(123)), 123)
@common.requireNumpy
def testByteFromNPInt64(self):
import numpy as np
self.assertEqual(self.fixture.callByte(np.int64(123)), 123)
self.assertEqual(self.fixture.callByte(np.uint64(123)), 123)
def testByteFromFloat(self):
with self.assertRaises(TypeError):
self.fixture.callByte(float(2))
@common.requireNumpy
def testByteFromNPFloat(self):
import numpy as np
with self.assertRaises(TypeError):
self.fixture.callByte(np.float_(2))
@common.requireNumpy
def testByteFromNPFloat32(self):
import numpy as np
with self.assertRaises(TypeError):
self.fixture.callByte(np.float32(2))
@common.requireNumpy
def testByteFromNPFloat64(self):
import numpy as np
with self.assertRaises(TypeError):
self.fixture.callByte(np.float64(2))
def testByteRange(self):
with self.assertRaises(OverflowError):
self.fixture.callByte(int(1e10))
with self.assertRaises(OverflowError):
self.fixture.callByte(int(-1e10))
def testExplicitRange(self):
# These will not overflow as they are explicit casts
self.assertEqual(JByte(2**8), 0)
self.assertEqual(JByte(-2**8), 0)
def testByteFromNone(self):
with self.assertRaises(TypeError):
self.fixture.callByte(None)
def testByteArrayAsString(self):
t = JClass("jpype.array.TestArray")()
v = t.getByteArray()
self.assertEqual(str(v), 'avcd')
def testByteArrayIntoVector(self):
ba = jpype.JArray(jpype.JByte)(b'123')
v = jpype.java.util.Vector(1)
v.add(ba)
self.assertEqual(len(v), 1)
self.assertNotEqual(v[0], None)
def testByteArraySimple(self):
a = JArray(JByte)(2)
a[1] = 2
self.assertEqual(a[1], 2)
def testJArrayConversionByte(self):
expected = (0, 1, 2, 3)
ByteBuffer = jpype.java.nio.ByteBuffer
bb = ByteBuffer.allocate(4)
buf = bb.array()
for i in range(len(expected)):
buf[i] = expected[i]
for i in range(len(expected)):
self.assertEqual(expected[i], buf[i])
def testFromObject(self):
ja = JArray(JByte)(5)
with self.assertRaises(TypeError):
ja[1] = object()
jf = JClass("jpype.common.Fixture")
with self.assertRaises(TypeError):
jf.static_byte_field = object()
with self.assertRaises(TypeError):
jf().byte_field = object()
def testArrayHash(self):
ja = JArray(JByte)([1, 2, 3])
self.assertIsInstance(hash(ja), int)
@common.requireNumpy
def testArrayBufferDims(self):
ja = JArray(JByte)(5)
a = np.zeros((5, 2))
with self.assertRaisesRegex(TypeError, "incorrect"):
ja[:] = a
def testArrayBadItem(self):
class q(object):
def __int__(self):
raise SystemError("nope")
def __index__(self):
raise SystemError("nope")
ja = JArray(JByte)(5)
a = [1, -1, q(), 3, 4]
with self.assertRaisesRegex(SystemError, "nope"):
ja[:] = a
def testArrayBadDims(self):
class q(bytes):
# Lie about our length
def __len__(self):
return 5
a = q([1, 2, 3])
ja = JArray(JByte)(5)
with self.assertRaisesRegex(ValueError, "Slice"):
ja[:] = [1, 2, 3]
with self.assertRaisesRegex(ValueError, "mismatch"):
ja[:] = a
def testArraySetRange(self):
ja = JArray(JByte)(3)
ja[0:1] = [123]
self.assertEqual(ja[0], 123)
ja[0:1] = [-1]
self.assertEqual(ja[0], -1)
with self.assertRaises(TypeError):
ja[0:1] = [1.000]
with self.assertRaises(TypeError):
ja[0:1] = [java.lang.Double(321)]
with self.assertRaises(TypeError):
ja[0:1] = [object()]
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