from __future__ import print_function from __future__ import division from __future__ import absolute_import import unittest from jnius import autoclass class StringArgumentForByteArrayTest(unittest.TestCase): def test_string_arg_for_byte_array(self): # the ByteBuffer.wrap() accept only byte[]. ByteBuffer = autoclass('java.nio.ByteBuffer') self.assertIsNotNone(ByteBuffer.wrap(b'hello world')) def test_string_arg_with_signed_char(self): ByteBuffer = autoclass('java.nio.ByteBuffer') self.assertIsNotNone(ByteBuffer.wrap(b'\x00\xffHello World\x7f')) def test_fill_byte_array(self): arr = [0, 0, 0] Test = autoclass('org.jnius.BasicsTest')() Test.fillByteArray(arr) # we don't received signed byte, but unsigned in python. self.assertEquals( arr, [127, 1, 129]) def test_create_bytearray(self): StringBufferInputStream = autoclass('java.io.StringBufferInputStream') nis = StringBufferInputStream("Hello world") barr = bytearray("\x00" * 5, encoding="utf8") self.assertEquals(nis.read(barr, 0, 5), 5) self.assertEquals(barr, b"Hello") def test_bytearray_ascii(self): ByteArrayInputStream = autoclass('java.io.ByteArrayInputStream') s = b"".join(bytes(x) for x in range(256)) nis = ByteArrayInputStream(s) barr = bytearray("\x00" * 256, encoding="ascii") self.assertEquals(nis.read(barr, 0, 256), 256) self.assertEquals(barr[:256], s[:256]) def test_empty_bytearray(self): Test = autoclass('org.jnius.BasicsTest')() arr = Test.methodReturnEmptyByteArray() self.assertEquals(len(arr), 0) with self.assertRaises(IndexError): arr[0] self.assertEquals(arr, []) self.assertEquals(arr[:1], []) self.assertEquals(arr.tostring(), b'')