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#*****************************************************************************
# Copyright 2004-2008 Steve Menard
#
# 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.
#
#*****************************************************************************
try:
import unittest2 as unittest
except ImportError:
import unittest
import sys
import jpype
from jpype import JPackage, JArray, JByte, java
from . import common
if sys.version > '3':
unicode = str
def haveNumpy():
try:
import numpy
return True
except ImportError:
return False
class ArrayTestCase(common.JPypeTestCase):
def setUp(self):
common.JPypeTestCase.setUp(self)
self.VALUES = [12234, 1234, 234, 1324, 424, 234, 234, 142, 5, 251, 242, 35, 235, 62,
1235, 46, 245132, 51, 2, 3, 4]
def testReadArray(self):
t = JPackage("jpype").array.TestArray()
self.assertNotIsInstance(t, JPackage)
self.assertCountEqual(self.VALUES, t.i)
self.assertEqual(t.i[0], self.VALUES[0])
self.assertCountEqual(self.VALUES[1:-2], t.i[1:-2])
def testStangeBehavior(self):
''' Test for stange crash reported in bug #1089302'''
Test2 = jpype.JPackage('jpype.array').Test2
test = Test2()
test.test(test.getValue())
def testWriteArray(self):
t = JPackage("jpype").array.TestArray()
self.assertNotIsInstance(t, JPackage)
t.i[0] = 32
self.assertEqual(t.i[0], 32)
t.i[1:3] = (33, 34)
self.assertEqual(t.i[1], 33)
self.assertEqual(t.i[2], 34)
self.assertCountEqual(t.i[:5], (32, 33, 34, 1324, 424))
def testObjectArraySimple(self):
a = JArray(java.lang.String, 1)(2)
a[1] = "Foo"
self.assertEqual("Foo", a[1])
def testByteArraySimple(self):
a = JArray(JByte)(2)
a[1] = 2
self.assertEqual(a[1], 2)
def testIterateArray(self):
t = JPackage("jpype").array.TestArray()
self.assertFalse(isinstance(t, JPackage))
for i in t.i:
self.assertNotEqual(i, 0)
def testGetSubclass(self):
t = JPackage("jpype").array.TestArray()
v = t.getSubClassArray()
self.assertTrue(isinstance(v[0], unicode))
def testGetArrayAsObject(self):
t = JPackage("jpype").array.TestArray()
v = t.getArrayAsObject()
def testCharArrayAsString(self):
t = JPackage("jpype").array.TestArray()
v = t.charArray
self.assertEqual(str(v), 'avcd')
self.assertEqual(unicode(v), u'avcd')
def testByteArrayAsString(self):
t = JPackage("jpype").array.TestArray()
v = t.byteArray
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 testJArrayConversionBool(self):
expected = [True, False, False, True]
jarr = jpype.JArray(jpype.JBoolean)(expected)
self.assertCountEqual(expected, jarr[:])
def testJArrayConversionChar(self):
t = JPackage("jpype").array.TestArray()
v = t.charArray
self.assertEqual(v[:], 'avcd')
# FIXME: this returns unicode on windows
self.assertEqual(str(v[:]), 'avcd')
self.assertEqual(unicode(v[:]), u'avcd')
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]
self.assertCountEqual(expected[:], buf[:])
def testJArrayConversionShort(self):
# filter out values, which can not be converted to jshort
self.VALUES = [v for v in self.VALUES if v < (2**16 / 2 - 1)
and v > (2**16 / 2 * -1)]
jarr = jpype.JArray(jpype.JShort)(self.VALUES)
result = jarr[0: len(jarr)]
self.assertCountEqual(self.VALUES, result)
result = jarr[2:10]
self.assertCountEqual(self.VALUES[2:10], result)
# TODO: investigate why overflow is being casted on linux, but not on windows
# with self.assertRaises(jpype._):
# jpype.JArray(jpype.JShort)([2**16/2])
def testJArrayConversionInt(self):
jarr = jpype.JArray(jpype.JInt)(self.VALUES)
result = jarr[0: len(jarr)]
self.assertCountEqual(self.VALUES, result)
result = jarr[2:10]
self.assertCountEqual(self.VALUES[2:10], result)
def testJArrayConversionLong(self):
jarr = jpype.JArray(jpype.JLong)(self.VALUES)
result = jarr[0: len(jarr)]
self.assertCountEqual(self.VALUES, result)
result = jarr[2:10]
self.assertCountEqual(self.VALUES[2:10], result)
def testJArrayConversionFloat(self):
VALUES = [float(x) for x in self.VALUES]
jarr = jpype.JArray(jpype.JFloat)(VALUES)
result = jarr[0: len(jarr)]
self.assertCountEqual(jarr, result)
result = jarr[2:10]
self.assertCountEqual(VALUES[2:10], result)
def testJArrayConversionDouble(self):
VALUES = [float(x) for x in self.VALUES]
jarr = jpype.JArray(jpype.JDouble)(VALUES)
self.assertCountEqual(VALUES, jarr)
result = jarr[:]
self.assertCountEqual(VALUES, result)
result = jarr[2:10]
self.assertEqual(len(VALUES[2:10]), len(result))
self.assertCountEqual(VALUES[2:10], result)
# empty slice
result = jarr[-1:3]
expected = VALUES[-1:3]
self.assertCountEqual(expected, result)
result = jarr[3:-2]
expected = VALUES[3:-2]
self.assertCountEqual(expected, result)
def testConversionError(self):
jarr = jpype.JArray(jpype.JInt, 1)(10)
with self.assertRaises(RuntimeError):
jarr[1:2] = [dict()]
# -1 is returned by python, if conversion fails also, ensure this works
jarr[1:2] = [-1]
def testObjectArrayInitial(self):
l1 = java.util.ArrayList()
l1.add(0)
l2 = java.util.ArrayList()
l2.add(42)
l3 = java.util.ArrayList()
l3.add(13)
jarr = jpype.JArray(java.util.ArrayList, 1)([l1, l2, l3])
self.assertEqual(l1, jarr[0])
self.assertEqual(l2, jarr[1])
self.assertEqual(l3, jarr[2])
@unittest.skipUnless(haveNumpy(), "numpy not available")
def testSetFromNPBoolArray(self):
import numpy as np
n = 100
a = np.random.randint(0, 1, size=n).astype(np.bool)
jarr = jpype.JArray(jpype.JBoolean)(n)
jarr[:] = a
self.assertCountEqual(a, jarr)
@unittest.skipUnless(haveNumpy(), "numpy not available")
def testSetFromNPByteArray(self):
import numpy as np
n = 100
a = np.random.randint(-128, 127, size=n).astype(np.byte)
jarr = jpype.JArray(jpype.JByte)(n)
jarr[:] = a
self.assertCountEqual(a, jarr)
@unittest.skipUnless(haveNumpy(), "numpy not available")
def testSetFromNPShortArray(self):
import numpy as np
n = 100
a = np.random.randint(-32768, 32767, size=n).astype(np.short)
jarr = jpype.JArray(jpype.JShort)(n)
jarr[:] = a
self.assertCountEqual(a, jarr)
@unittest.skipUnless(haveNumpy(), "numpy not available")
def testSetFromNPIntArray(self):
import numpy as np
n = 100
a = np.random.randint(-2**31, 2**31 - 1, size=n).astype(np.int32)
jarr = jpype.JArray(jpype.JInt)(n)
jarr[:] = a
self.assertCountEqual(a, jarr)
@unittest.skipUnless(haveNumpy(), "numpy not available")
def testSetFromNPLongArray(self):
import numpy as np
n = 100
# actuall the lower bound should be -2**63 -1, but raises Overflow
# error in numpy
a = np.random.randint(-2**63, 2**63 - 1, size=n, dtype=np.int64)
jarr = jpype.JArray(jpype.JLong)(n)
jarr[:] = a
self.assertCountEqual(a, jarr)
@unittest.skipUnless(haveNumpy(), "numpy not available")
def testSetFromNPFloatArray(self):
import numpy as np
n = 100
a = np.random.random(n).astype(np.float32)
jarr = jpype.JArray(jpype.JFloat)(n)
jarr[:] = a
self.assertCountEqual(a, jarr)
@unittest.skipUnless(haveNumpy(), "numpy not available")
def testSetFromNPDoubleArray(self):
import numpy as np
n = 100
a = np.random.random(n).astype(np.float64)
jarr = jpype.JArray(jpype.JDouble)(n)
jarr[:] = a
self.assertCountEqual(a, jarr)
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