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Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
import unittest
import random
import threading
import time
from test import test_support
import test_list
if test_support.is_jython:
from java.util import ArrayList
from java.lang import Integer, String
class ListTestCase(unittest.TestCase):
def test_recursive_list_slices(self):
x = [1,2,3,4,5]
x[1:] = x
self.assertEquals(x, [1, 1, 2, 3, 4, 5],
"Recursive assignment to list slices failed")
def test_subclass_richcmp(self):
# http://bugs.jython.org/issue1115
class Foo(list):
def __init__(self, dotstring):
list.__init__(self, map(int, dotstring.split(".")))
bar1 = Foo('1.2.3')
bar2 = Foo('1.2.4')
self.assert_(bar1 < bar2)
self.assert_(bar1 <= bar2)
self.assert_(bar2 > bar1)
self.assert_(bar2 >= bar1)
def test_setget_override(self):
if not test_support.is_jython:
return
# http://bugs.jython.org/issue600790
class GoofyListMapThing(ArrayList):
def __init__(self):
self.silly = "Nothing"
def __setitem__(self, key, element):
self.silly = "spam"
def __getitem__(self, key):
self.silly = "eggs"
glmt = GoofyListMapThing()
glmt['my-key'] = String('el1')
self.assertEquals(glmt.silly, "spam")
glmt['my-key']
self.assertEquals(glmt.silly, "eggs")
def test_tuple_equality(self):
self.assertEqual([(1,), [1]].count([1]), 1) # http://bugs.jython.org/issue1317
def test_big_list(self):
"""Verify that fairly large collection literals of primitives can be constructed."""
# use \n to separate to avoid parser problems
lst = eval("[" + ",\n".join((str(x) for x in xrange(64000))) +"]")
self.assertEqual(len(lst), 64000)
self.assertEqual(sum(lst), 2047968000)
class ThreadSafetyTestCase(unittest.TestCase):
def run_threads(self, f, num=10):
threads = []
for i in xrange(num):
t = threading.Thread(target=f)
t.start()
threads.append(t)
timeout = 10. # be especially generous
for t in threads:
t.join(timeout)
timeout = 0.
for t in threads:
self.assertFalse(t.isAlive())
def test_append_remove(self):
# derived from Itamar Shtull-Trauring's test for issue 521701
lst = []
def tester():
ct = threading.currentThread()
for i in range(1000):
lst.append(ct)
time.sleep(0.0001)
lst.remove(ct)
self.run_threads(tester)
self.assertEqual(lst, [])
def test_sort(self):
lst = []
def tester():
ct = threading.currentThread()
for i in range(1000):
lst.append(ct)
lst.sort()
lst.remove(ct)
time.sleep(0.0001)
self.run_threads(tester)
self.assertEqual(lst, [])
def test_count_reverse(self):
lst = [0,1,2,3,4,5,6,7,8,9,10,0]
def tester():
ct = threading.currentThread()
for i in range(1000):
self.assertEqual(lst[0], 0)
if random.random() > 0.5:
time.sleep(0.0001)
lst.reverse()
self.assertEqual(lst.count(0), 2)
self.assert_(lst[1] in (1,10))
self.run_threads(tester)
class ExtendedSliceTestCase(unittest.TestCase):
'''Really thrash extended slice operations on list.'''
type2test = list
def test_extended_slice_delete(self):
# Based on list_tests.CommonTest.test_extendedslicing .
# In the cited test case, the stop value is nearly always the default
# (None), meaning the end of the list, and often the start value is too.
# This contributed to the release of http://bugs.jython.org/issue1873 .
# This is a supplementary test focused on correct stopping.
initial = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13]
expected1 = self.type2test([ 0, 1, 2, 3, 4, 5, 10,11,12,13])
expected2 = self.type2test([ 0, 1, 2, 4, 6, 8, 10, 12,13])
expected4 = self.type2test([ 0, 1, 3, 4, 5, 7, 8, 9, 11,12,13])
# Positive step
a = self.type2test(initial)
del a[6:10:1]
self.assertEqual(a, expected1)
a = self.type2test(initial)
del a[3:13:2]
self.assertEqual(a, expected2)
a = self.type2test(initial)
del a[3:12:2]
self.assertEqual(a, expected2)
a = self.type2test(initial)
del a[2:11:4]
self.assertEqual(a, expected4)
a = self.type2test(initial)
del a[2::4]
self.assertEqual(a, expected4)
# Negative step (same results)
a = self.type2test(initial)
del a[9:5:-1]
self.assertEqual(a, expected1)
a = self.type2test(initial)
del a[11:1:-2]
self.assertEqual(a, expected2)
a = self.type2test(initial)
del a[11:2:-2]
self.assertEqual(a, expected2)
a = self.type2test(initial)
del a[10:1:-4]
self.assertEqual(a, expected4)
a = self.type2test(initial)
del a[10::-4]
self.assertEqual(a, expected4)
def test_extended_slice_assign(self):
# Based on list_tests.CommonTest.test_extendedslicing .
# In the cited test case, the stop value is nearly always the default.
# This is a supplementary test focused on correct stopping.
aa, bb, cc = 91, 92, 93
src = self.type2test([aa,bb,cc])
initial = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13]
expected1 = self.type2test([ 0, 1, 2, 3, 4, 5,aa,bb,cc, 9,10,11,12,13])
expected2 = self.type2test([ 0, 1, 2,aa, 4,bb, 6,cc, 8, 9,10,11,12,13])
expected4 = self.type2test([ 0, 1,aa, 3, 4, 5,bb, 7, 8, 9,cc,11,12,13])
# Positive step
a = self.type2test(initial)
a[6:9:1] = src
self.assertEqual(a, expected1)
a = self.type2test(initial)
a[3:9:2] = src
self.assertEqual(a, expected2)
a = self.type2test(initial)
a[3:8:2] = src
self.assertEqual(a, expected2)
a = self.type2test(initial)
a[2:11:4] = src
self.assertEqual(a, expected4)
a = self.type2test(initial)
a[2::4] = src
self.assertEqual(a, expected4)
# Negative step (same results, as src is reversed)
src.reverse()
a = self.type2test(initial)
a[8:5:-1] = src
self.assertEqual(a, expected1)
a = self.type2test(initial)
a[7:2:-2] = src
self.assertEqual(a, expected2)
a = self.type2test(initial)
a[7:1:-2] = src
self.assertEqual(a, expected2)
a = self.type2test(initial)
a[10:1:-4] = src
self.assertEqual(a, expected4)
a = self.type2test(initial)
a[10::-4] = src
self.assertEqual(a, expected4)
class JavaListTestCase(test_list.ListTest):
type2test = ArrayList
def test_init(self):
# Iterable arg is optional
self.assertEqual(self.type2test([]), self.type2test())
# Unlike with builtin types, we do not guarantee objects can
# be overwritten; see corresponding tests
# Mutables always return a new object
a = self.type2test([1, 2, 3])
b = self.type2test(a)
self.assertNotEqual(id(a), id(b))
self.assertEqual(a, b)
def test_extend_java_ArrayList(self):
jl = ArrayList([])
jl.extend([1,2])
self.assertEqual(jl, ArrayList([1,2]))
jl.extend(ArrayList([3,4]))
self.assertEqual(jl, [1,2,3,4])
def test_remove(self):
# Verifies that overloaded java.util.List#remove(int) method can still be used, but with Python index semantics
# http://bugs.jython.org/issue2456
jl = ArrayList(xrange(10, -1, -1)) # 10 .. 0, inclusive
jl.remove(0) # removes jl[-1] (=0)
self.assertEqual(jl, range(10, 0, -1)) # 10 .. 1
self.assertRaises(ValueError, jl.remove, Integer(0)) # j.l.Integer does not support __index__ - maybe it should!
jl.remove(0) # removes jl[0] (=10)
self.assertEqual(jl, range(9, 0, -1)) # 9 .. 1
jl.remove(-1) # removes jl[-1] (=1) - support same index calculations as Python (= del jl[-1])
self.assertEqual(jl, range(9, 1, -1)) # 9 .. 2
jl.remove(3)
jl.remove(5)
self.assertEqual(jl, [9, 8, 7, 6, 4, 2])
a_to_z = list(chr(i) for i in xrange(ord('a'), ord('z') + 1))
b_to_z_by_2 = list(chr(i) for i in xrange(ord('b'), ord('z') + 1, 2))
jl = ArrayList(a_to_z)
for i in xrange(13):
jl.remove(i)
self.assertEqual(jl, b_to_z_by_2)
class ListSubclassTestCase(unittest.TestCase):
def test_subclass_iter_copy(self):
class MyList(list):
def __iter__(self):
i = 0
results = super(MyList, self).__iter__()
for result in results:
yield result
i += 1
# add extra result for validation
yield i
lst = MyList(['a', 'b', 'c'])
self.assertEqual(list(lst), ['a', 'b', 'c', 3])
def test_subclass_iter_does_not_call_other_special_methods(self):
# Verify fix for http://bugs.jython.org/issue2442
class C(list):
def __init__(self, *args):
self.called = False
return super(C, type(self)).__init__(self, *args)
def __len__(self):
self.called = True
return super(C, type(self)).__len__(self)
def __getitem__(self, index):
self.called = True
return super(C, type(self)).__getitem__(self, index)
c = C(range(10))
self.assertEqual(list(iter(c)), range(10))
self.assertFalse(c.called)
def test_main():
test_support.run_unittest(ListSubclassTestCase,
ListTestCase,
ThreadSafetyTestCase,
ExtendedSliceTestCase,
JavaListTestCase)
if __name__ == "__main__":
test_main()