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# part of JPype1; author Martin K. Scherer; 2014
try:
import unittest2 as unittest
except ImportError:
import unittest
import mock
from jpype._jvmfinder import *
from jpype._linux import *
from jpype._darwin import *
import sys
class JVMFinderTest(unittest.TestCase):
"""
test some methods to obtain a jvm.
TODO: add windows (need to mock registry)
"""
def test_find_libjvm(self):
"""
test JVMFinder.find_libjvm does not return broken jvm implementation.
"""
walk_fake = [('jre', ('lib',), ()),
('jre/lib', ('amd64',), ()),
('jre/lib/amd64',
('cacao', 'jamvm', 'server'), ()),
('jre/lib/amd64/cacao',
('',), ('libjvm.so',)),
('jre/lib/amd64/jamvm',
('',), ('libjvm.so',)),
('jre/lib/amd64/server',
('',), ('libjvm.so',)),
]
with mock.patch('os.walk') as mockwalk:
# contains broken and working jvms
mockwalk.return_value = walk_fake
finder = LinuxJVMFinder()
p = finder.find_libjvm('arbitrary java home')
self.assertEqual(
p, os.path.join('jre/lib/amd64/server','libjvm.so'), 'wrong jvm returned')
with mock.patch('os.walk') as mockwalk:
# contains only broken jvms, since server impl is removed
walk_fake[-1] = ((), (), (),)
mockwalk.return_value = walk_fake
finder = LinuxJVMFinder()
with self.assertRaises(JVMNotSupportedException) as context:
finder.find_libjvm('arbitrary java home')
@mock.patch('os.walk')
@mock.patch('os.path.exists')
@mock.patch('os.path.realpath')
def test_get_from_bin(self, mock_real_path, mock_path_exists, mock_os_walk):
"""
test _get_from_bin method (used in linux and darwin)
'/usr/bin/java' => some jre/jdk path
"""
java_path = '/usr/lib/jvm/java-6-openjdk-amd64/bin/java'
mock_os_walk.return_value = [
('/usr/lib/jvm/java-6-openjdk-amd64/jre/lib/amd64/server', ('',), ('libjvm.so',))]
mock_path_exists.return_value = True
mock_real_path.return_value = '/usr/lib/jvm/java-6-openjdk-amd64/bin/java'
finder = LinuxJVMFinder()
p = finder._get_from_bin()
self.assertEqual(
p, os.path.join('/usr/lib/jvm/java-6-openjdk-amd64/jre/lib/amd64/server','libjvm.so'))
@unittest.skipIf(sys.version_info[:2] == (2, 6), "skip on py26")
@mock.patch('platform.mac_ver')
def test_javahome_binary_py27(self, mock_mac_ver):
# this version has java_home binary
mock_mac_ver.return_value = ('10.6.8', '', '')
expected = '/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home\n'
finder = DarwinJVMFinder()
# fake check_output
with mock.patch('subprocess.check_output') as mock_checkoutput:
mock_checkoutput.return_value = expected
p = finder._javahome_binary()
self.assertEqual(p, expected.strip())
# this version has no java_home binary
mock_mac_ver.return_value = ('10.5', '', '')
p = finder._javahome_binary()
self.assertEqual(p, None)
@unittest.skipUnless(sys.version_info[:2] == (2, 6), "only py26")
@mock.patch('platform.mac_ver')
def test_javahome_binary_py26(self, mock_mac_ver):
# this version has java_home binary
mock_mac_ver.return_value = ('10.6.8', '', '')
expected = '/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home\n'
finder = DarwinJVMFinder()
# fake check_output
with mock.patch('subprocess.Popen') as mock_popen:
class proc:
def communicate(self):
return (expected, )
mock_popen.return_value = proc()
p = finder._javahome_binary()
self.assertEqual(p.strip(), expected.strip())
# this version has no java_home binary
mock_mac_ver.return_value = ('10.5', '', '')
p = finder._javahome_binary()
self.assertEqual(p, None)
if __name__ == '__main__':
unittest.main()
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