def empty(self):
"""Return an empty Cons.
The new seq will have this seq's meta data attached."""
from clojure.lang.persistentlist import EMPTY
return EMPTY.withMeta(self.meta())
def cons(x, s):
from clojure.lang.cons import Cons
from clojure.lang.persistentlist import EMPTY as EMPTY_LIST
if isinstance(s, ISeq):
return Cons(x, s)
if s is None:
return EMPTY_LIST.cons(x)
return Cons(x, seq(s))
def test__eq___PASS(self):
self.assertTrue(EMPTY.__eq__(EMPTY))
self.assertTrue(EMPTY.__eq__(()))
self.assertTrue(EMPTY.__eq__([]))
def testSeq_PASS(self):
self.assertEqual(EMPTY.seq(), None)
def test__iter___PASS(self):
self.assertEqual(EMPTY.__iter__(), None)
def testCons_PASS(self):
l = EMPTY.cons(uobj)
self.assertFalse(EMPTY is l)
self.assertEqual(len(l), 1)
self.assertEqual(l.first(), uobj)
def testPeek_PASS(self):
self.assertEqual(EMPTY.peek(), None)
def testWithMeta_PASS(self):
l1 = EMPTY.withMeta(pseudoMetaData)
l2 = l1.withMeta(uobj)
self.assertFalse(l1.meta() is l2.meta())
# equal with different meta data
self.assertTrue(l1.__eq__(l2))
def testNext_PASS(self):
self.assertEqual(EMPTY.next(), None)
def testEmpty_PASS(self):
self.assertTrue(EMPTY.empty() is EMPTY)
def testPeek_PASS(self):
self.assertEqual(EMPTY.peek(), None)
def testMore_PASS(self):
self.assertTrue(EMPTY.more() is EMPTY)
def testCons_PASS(self):
l = EMPTY.cons(uobj)
self.assertFalse(EMPTY is l)
self.assertEqual(len(l), 1)
self.assertEqual(l.first(), uobj)
def testNext_PASS(self):
self.assertEqual(EMPTY.next(), None)
def testFirst_PASS(self):
self.assertEqual(EMPTY.first(), None)
def testWithMeta_PASS(self):
l1 = EMPTY.withMeta(pseudoMetaData)
l2 = l1.withMeta(uobj)
self.assertFalse(l1.meta() is l2.meta())
# equal with different meta data
self.assertTrue(l1.__eq__(l2))
def test__ne___PASS(self):
self.assertFalse(EMPTY.__ne__(EMPTY))
self.assertFalse(EMPTY.__ne__(()))
self.assertFalse(EMPTY.__ne__([]))
def testCount_PASS(self):
self.assertEqual(EMPTY.count(), 0)
def test__iter___PASS(self):
self.assertEqual(EMPTY.__iter__(), None)
def testSeq_PASS(self):
self.assertEqual(EMPTY.seq(), None)
def testFirst_PASS(self):
self.assertEqual(EMPTY.first(), None)
def testWriteAsReplString_PASS(self):
sio = StringIO()
EMPTY.writeAsReplString(sio)
self.assertEqual(sio.getvalue(), "()")
def testMore_PASS(self):
self.assertTrue(EMPTY.more() is EMPTY)
def test__len___PASS(self):
self.assertEqual(EMPTY.__len__(), 0)
def testEmpty_PASS(self):
self.assertTrue(EMPTY.empty() is EMPTY)
def test__len___PASS(self):
self.assertEqual(EMPTY.__len__(), 0)
def testCount_PASS(self):
self.assertEqual(EMPTY.count(), 0)
def test__eq___PASS(self):
self.assertTrue(EMPTY.__eq__(EMPTY))
self.assertTrue(EMPTY.__eq__(()))
self.assertTrue(EMPTY.__eq__([]))
def testWriteAsReplString_PASS(self):
sio = StringIO()
EMPTY.writeAsReplString(sio)
self.assertEqual(sio.getvalue(), "()")
def test__ne___PASS(self):
self.assertFalse(EMPTY.__ne__(EMPTY))
self.assertFalse(EMPTY.__ne__(()))
self.assertFalse(EMPTY.__ne__([]))
def test__hash___PASS(self):
self.assertEqual(EMPTY.__hash__(), 1)
def test__hash___PASS(self):
self.assertEqual(EMPTY.__hash__(), 1)
