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import unittest
import copy
import gc
from rpy2 import rinterface
rinterface.initr()
class SexpTestCase(unittest.TestCase):
def testNew_invalid(self):
x = "a"
self.assertRaises(ValueError, rinterface.Sexp, x)
def testNew(self):
sexp = rinterface.baseenv.get("letters")
sexp_new = rinterface.Sexp(sexp)
idem = rinterface.baseenv.get("identical")
self.assertTrue(idem(sexp, sexp_new)[0])
sexp_new2 = rinterface.Sexp(sexp)
self.assertTrue(idem(sexp, sexp_new2)[0])
del(sexp)
self.assertTrue(idem(sexp_new, sexp_new2)[0])
def testTypeof_get(self):
sexp = rinterface.baseenv.get("letters")
self.assertEqual(sexp.typeof, rinterface.STRSXP)
sexp = rinterface.baseenv.get("pi")
self.assertEqual(sexp.typeof, rinterface.REALSXP)
sexp = rinterface.baseenv.get("plot")
self.assertEqual(sexp.typeof, rinterface.CLOSXP)
def testList_attrs(self):
x = rinterface.IntSexpVector((1,2,3))
self.assertEqual(0, len(x.list_attrs()))
x.do_slot_assign('a', rinterface.IntSexpVector((33,)))
self.assertEqual(1, len(x.list_attrs()))
self.assertTrue('a' in x.list_attrs())
def testDo_slot(self):
data_func = rinterface.baseenv.get("data")
data_func(rinterface.SexpVector(["iris", ], rinterface.STRSXP))
sexp = rinterface.globalenv.get("iris")
names = sexp.do_slot("names")
iris_names = ("Sepal.Length", "Sepal.Width", "Petal.Length", "Petal.Width", "Species")
self.assertEqual(len(iris_names), len(names))
for i, n in enumerate(iris_names):
self.assertEqual(iris_names[i], names[i])
self.assertRaises(LookupError, sexp.do_slot, "foo")
def testDo_slot_assign(self):
data_func = rinterface.baseenv.get("data")
data_func(rinterface.SexpVector(["iris", ], rinterface.STRSXP))
sexp = rinterface.globalenv.get("iris")
iris_names = rinterface.StrSexpVector(['a', 'b', 'c', 'd', 'e'])
sexp.do_slot_assign("names", iris_names)
names = [x for x in sexp.do_slot("names")]
self.assertEqual(['a', 'b', 'c', 'd', 'e'], names)
def testDo_slot_assign_create(self):
#test that assigning slots is also creating the slot
x = rinterface.IntSexpVector([1,2,3])
x.do_slot_assign("foo", rinterface.StrSexpVector(["bar", ]))
slot = x.do_slot("foo")
self.assertEqual(1, len(slot))
self.assertEqual("bar", slot[0])
def testSexp_rsame_true(self):
sexp_a = rinterface.baseenv.get("letters")
sexp_b = rinterface.baseenv.get("letters")
self.assertTrue(sexp_a.rsame(sexp_b))
def testSexp_rsame_false(self):
sexp_a = rinterface.baseenv.get("letters")
sexp_b = rinterface.baseenv.get("pi")
self.assertFalse(sexp_a.rsame(sexp_b))
def testSexp_rsame_wrongType(self):
sexp_a = rinterface.baseenv.get("letters")
self.assertRaises(ValueError, sexp_a.rsame, 'foo')
def testSexp_sexp(self):
sexp = rinterface.IntSexpVector([1,2,3])
cobj = sexp.__sexp__
sexp = rinterface.IntSexpVector([4,5,6,7])
self.assertEqual(4, len(sexp))
sexp.__sexp__ = cobj
self.assertEqual(3, len(sexp))
def testSexp_sexp_wrongtypeof(self):
sexp = rinterface.IntSexpVector([1,2,3])
cobj = sexp.__sexp__
sexp = rinterface.StrSexpVector(['a', 'b'])
self.assertEqual(2, len(sexp))
self.assertRaises(ValueError, sexp.__setattr__, '__sexp__', cobj)
def testSexp_sexp_destroyCobj(self):
sexp = rinterface.IntSexpVector([1,2,3])
cobj = sexp.__sexp__
del(cobj)
gc.collect()
# no real test, just make sure that it does
# not cause a segfault
def testSexp_deepcopy(self):
sexp = rinterface.IntSexpVector([1,2,3])
self.assertEqual(0, sexp.named)
rinterface.baseenv.get("identity")(sexp)
self.assertEqual(2, sexp.named)
sexp2 = sexp.__deepcopy__()
self.assertEqual(sexp.typeof, sexp2.typeof)
self.assertEqual(list(sexp), list(sexp2))
self.assertFalse(sexp.rsame(sexp2))
self.assertEqual(0, sexp2.named)
# should be the same as above, but just in case:
sexp3 = copy.deepcopy(sexp)
self.assertEqual(sexp.typeof, sexp3.typeof)
self.assertEqual(list(sexp), list(sexp3))
self.assertFalse(sexp.rsame(sexp3))
self.assertEqual(0, sexp3.named)
class RNULLTestCase(unittest.TestCase):
def testRNULLType_nonzero(self):
NULL = rinterface.RNULLType()
self.assertFalse(NULL)
def suite():
suite = unittest.TestLoader().loadTestsFromTestCase(SexpTestCase)
suite.addTest(unittest.TestLoader().loadTestsFromTestCase(RNULLTestCase))
return suite
if __name__ == '__main__':
tr = unittest.TextTestRunner(verbosity = 2)
tr.run(suite())
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