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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 common
import jpype
import _jpype
from jpype.types import *
class ConversionTestCase(common.JPypeTestCase):
def setUp(self):
common.JPypeTestCase.setUp(self)
self.jc1 = jpype.JClass("java.lang.String")
self.jc2 = jpype.JClass("java.lang.Integer")
def testList(self):
cls = JClass('jpype.collection.CollectionTest')
self.assertIsInstance(cls.testList(
[1, 2, 3]), JClass('java.util.List'))
def testMap(self):
cls = JClass('jpype.collection.CollectionTest')
self.assertIsInstance(cls.testMap(
{'a': 1, 'b': 2}), JClass('java.util.Map'))
def testCanConvertExact(self):
self.assertEqual(self.jc1._canConvertToJava("a"), "exact")
def testCanConvertNone(self):
self.assertEqual(self.jc1._canConvertToJava(1), "none")
def testCanConvertExplicit(self):
self.assertEqual(
self.jc2._canConvertToJava(1), "explicit")
def testCanConvertImplicit(self):
self.assertEqual(
self.jc1._canConvertToJava(None), "implicit")
def testConvertExact(self):
self.assertIsInstance(
self.jc1._convertToJava("a"), self.jc1)
def testConvertImplicit(self):
self.assertIsInstance(
self.jc1._convertToJava(None), self.jc1)
def testConvertExplicit(self):
self.assertIsInstance(
self.jc2._convertToJava(1), self.jc2)
def testConvertNone(self):
with self.assertRaises(TypeError):
self.jc1._convertToJava(1)
def testUnbox(self):
jf = JClass('jpype.common.Fixture')
java = jpype.java
jf.static_bool_field = java.lang.Boolean(True)
self.assertEqual(jf.static_bool_field, True)
jf.static_char_field = java.lang.Character("a")
self.assertEqual(jf.static_char_field, "a")
jf.static_byte_field = java.lang.Byte(123)
self.assertEqual(jf.static_byte_field, 123)
jf.static_short_field = java.lang.Short(123)
self.assertEqual(jf.static_short_field, 123)
jf.static_int_field = java.lang.Integer(123)
self.assertEqual(jf.static_int_field, 123)
jf.static_long_field = java.lang.Long(123)
self.assertEqual(jf.static_long_field, 123)
jf.static_float_field = java.lang.Float(123)
self.assertEqual(jf.static_float_field, 123)
jf.static_double_field = java.lang.Double(123)
self.assertEqual(jf.static_double_field, 123)
def testUnboxFail(self):
java = jpype.java
with self.assertRaises(TypeError):
JBoolean._convertToJava(java.lang.Double(1))
with self.assertRaises(TypeError):
JChar._convertToJava(java.lang.Double(1))
with self.assertRaises(TypeError):
JByte._convertToJava(java.lang.Boolean(1))
with self.assertRaises(TypeError):
JShort._convertToJava(java.lang.Boolean(1))
with self.assertRaises(TypeError):
JInt._convertToJava(java.lang.Boolean(1))
with self.assertRaises(TypeError):
JLong._convertToJava(java.lang.Boolean(1))
with self.assertRaises(TypeError):
JFloat._convertToJava(java.lang.Boolean(1))
with self.assertRaises(TypeError):
JDouble._convertToJava(java.lang.Boolean(1))
def testBox(self):
java = jpype.java
self.assertEqual(java.lang.Boolean(JBoolean(True)), True)
# FIXME this one fails
#self.assertEqual(java.lang.Character(JChar("A")), "A")
self.assertEqual(java.lang.Byte(JByte(123)), 123)
self.assertEqual(java.lang.Short(JShort(123)), 123)
self.assertEqual(java.lang.Integer(JInt(123)), 123)
self.assertEqual(java.lang.Long(JLong(123)), 123)
self.assertEqual(java.lang.Float(JFloat(123)), 123)
self.assertEqual(java.lang.Double(JDouble(123)), 123)
def testCharConversion(self):
self.assertEqual(JChar._canConvertToJava("a"), "implicit")
self.assertEqual(JChar._canConvertToJava(bytes([1])), "implicit")
self.assertEqual(JChar._canConvertToJava(bytes([1, 1])), "none")
# This test is wrong 'char q = (char) 1000000;' works in Java
# def testCharOverflow(self):
# with self.assertRaises(OverflowError):
# JChar(1000000)
def testCharBytes(self):
# setArrayRange directly calls Char conversion so it is a good way
# to test without checking if conversion is possible first
ja = JArray(JChar)(2)
with self.assertRaises(ValueError):
ja[0:1] = [bytes([1, 1, 1])]
with self.assertRaises(OverflowError):
ja[0:1] = [1000000]
with self.assertRaises(ValueError):
ja[0:1] = ["AAA"]
with self.assertRaises(ValueError):
ja[0:1] = ["\U0001F600"]
with self.assertRaises(TypeError):
ja[0:1] = [object()]
ja[0:1] = ["\u265E"]
def testDerived(self):
# Test Java Object any conversion
self.assertEqual(jpype.JClass("java.lang.Object")._canConvertToJava(jpype.JClass("java.lang.String")("a")), "derived")
# Test Java Object specific conversion
self.assertEqual(jpype.JClass("java.util.List")._canConvertToJava(jpype.JClass("java.util.ArrayList")()), "derived")
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