add hg and python

sys/lib/python/test/test_index.py

@@ -0,0 +1,223 @@
+import unittest
+from test import test_support
+import operator
+from sys import maxint
+
+class oldstyle:
+    def __index__(self):
+        return self.ind
+
+class newstyle(object):
+    def __index__(self):
+        return self.ind
+
+class TrapInt(int):
+    def __index__(self):
+        return self
+
+class TrapLong(long):
+    def __index__(self):
+        return self
+
+class BaseTestCase(unittest.TestCase):
+    def setUp(self):
+        self.o = oldstyle()
+        self.n = newstyle()
+
+    def test_basic(self):
+        self.o.ind = -2
+        self.n.ind = 2
+        self.assertEqual(operator.index(self.o), -2)
+        self.assertEqual(operator.index(self.n), 2)
+
+    def test_slice(self):
+        self.o.ind = 1
+        self.n.ind = 2
+        slc = slice(self.o, self.o, self.o)
+        check_slc = slice(1, 1, 1)
+        self.assertEqual(slc.indices(self.o), check_slc.indices(1))
+        slc = slice(self.n, self.n, self.n)
+        check_slc = slice(2, 2, 2)
+        self.assertEqual(slc.indices(self.n), check_slc.indices(2))
+
+    def test_wrappers(self):
+        self.o.ind = 4
+        self.n.ind = 5
+        self.assertEqual(6 .__index__(), 6)
+        self.assertEqual(-7L.__index__(), -7)
+        self.assertEqual(self.o.__index__(), 4)
+        self.assertEqual(self.n.__index__(), 5)
+
+    def test_subclasses(self):
+        r = range(10)
+        self.assertEqual(r[TrapInt(5):TrapInt(10)], r[5:10])
+        self.assertEqual(r[TrapLong(5):TrapLong(10)], r[5:10])
+        self.assertEqual(slice(TrapInt()).indices(0), (0,0,1))
+        self.assertEqual(slice(TrapLong(0)).indices(0), (0,0,1))
+
+    def test_error(self):
+        self.o.ind = 'dumb'
+        self.n.ind = 'bad'
+        self.failUnlessRaises(TypeError, operator.index, self.o)
+        self.failUnlessRaises(TypeError, operator.index, self.n)
+        self.failUnlessRaises(TypeError, slice(self.o).indices, 0)
+        self.failUnlessRaises(TypeError, slice(self.n).indices, 0)
+
+
+class SeqTestCase(unittest.TestCase):
+    # This test case isn't run directly. It just defines common tests
+    # to the different sequence types below
+    def setUp(self):
+        self.o = oldstyle()
+        self.n = newstyle()
+        self.o2 = oldstyle()
+        self.n2 = newstyle()
+
+    def test_index(self):
+        self.o.ind = -2
+        self.n.ind = 2
+        self.assertEqual(self.seq[self.n], self.seq[2])
+        self.assertEqual(self.seq[self.o], self.seq[-2])
+
+    def test_slice(self):
+        self.o.ind = 1
+        self.o2.ind = 3
+        self.n.ind = 2
+        self.n2.ind = 4
+        self.assertEqual(self.seq[self.o:self.o2], self.seq[1:3])
+        self.assertEqual(self.seq[self.n:self.n2], self.seq[2:4])
+
+    def test_repeat(self):
+        self.o.ind = 3
+        self.n.ind = 2
+        self.assertEqual(self.seq * self.o, self.seq * 3)
+        self.assertEqual(self.seq * self.n, self.seq * 2)
+        self.assertEqual(self.o * self.seq, self.seq * 3)
+        self.assertEqual(self.n * self.seq, self.seq * 2)
+
+    def test_wrappers(self):
+        self.o.ind = 4
+        self.n.ind = 5
+        self.assertEqual(self.seq.__getitem__(self.o), self.seq[4])
+        self.assertEqual(self.seq.__mul__(self.o), self.seq * 4)
+        self.assertEqual(self.seq.__rmul__(self.o), self.seq * 4)
+        self.assertEqual(self.seq.__getitem__(self.n), self.seq[5])
+        self.assertEqual(self.seq.__mul__(self.n), self.seq * 5)
+        self.assertEqual(self.seq.__rmul__(self.n), self.seq * 5)
+
+    def test_subclasses(self):
+        self.assertEqual(self.seq[TrapInt()], self.seq[0])
+        self.assertEqual(self.seq[TrapLong()], self.seq[0])
+
+    def test_error(self):
+        self.o.ind = 'dumb'
+        self.n.ind = 'bad'
+        indexobj = lambda x, obj: obj.seq[x]
+        self.failUnlessRaises(TypeError, indexobj, self.o, self)
+        self.failUnlessRaises(TypeError, indexobj, self.n, self)
+        sliceobj = lambda x, obj: obj.seq[x:]
+        self.failUnlessRaises(TypeError, sliceobj, self.o, self)
+        self.failUnlessRaises(TypeError, sliceobj, self.n, self)
+
+
+class ListTestCase(SeqTestCase):
+    seq = [0,10,20,30,40,50]
+
+    def test_setdelitem(self):
+        self.o.ind = -2
+        self.n.ind = 2
+        lst = list('ab!cdefghi!j')
+        del lst[self.o]
+        del lst[self.n]
+        lst[self.o] = 'X'
+        lst[self.n] = 'Y'
+        self.assertEqual(lst, list('abYdefghXj'))
+
+        lst = [5, 6, 7, 8, 9, 10, 11]
+        lst.__setitem__(self.n, "here")
+        self.assertEqual(lst, [5, 6, "here", 8, 9, 10, 11])
+        lst.__delitem__(self.n)
+        self.assertEqual(lst, [5, 6, 8, 9, 10, 11])
+
+    def test_inplace_repeat(self):
+        self.o.ind = 2
+        self.n.ind = 3
+        lst = [6, 4]
+        lst *= self.o
+        self.assertEqual(lst, [6, 4, 6, 4])
+        lst *= self.n
+        self.assertEqual(lst, [6, 4, 6, 4] * 3)
+
+        lst = [5, 6, 7, 8, 9, 11]
+        l2 = lst.__imul__(self.n)
+        self.assert_(l2 is lst)
+        self.assertEqual(lst, [5, 6, 7, 8, 9, 11] * 3)
+
+
+class TupleTestCase(SeqTestCase):
+    seq = (0,10,20,30,40,50)
+
+class StringTestCase(SeqTestCase):
+    seq = "this is a test"
+
+class UnicodeTestCase(SeqTestCase):
+    seq = u"this is a test"
+
+
+class XRangeTestCase(unittest.TestCase):
+
+    def test_xrange(self):
+        n = newstyle()
+        n.ind = 5
+        self.assertEqual(xrange(1, 20)[n], 6)
+        self.assertEqual(xrange(1, 20).__getitem__(n), 6)
+
+class OverflowTestCase(unittest.TestCase):
+
+    def setUp(self):
+        self.pos = 2**100
+        self.neg = -self.pos
+
+    def test_large_longs(self):
+        self.assertEqual(self.pos.__index__(), self.pos)
+        self.assertEqual(self.neg.__index__(), self.neg)
+
+    def _getitem_helper(self, base):
+        class GetItem(base):
+            def __len__(self):
+                return maxint
+            def __getitem__(self, key):
+                return key
+            def __getslice__(self, i, j):
+                return i, j
+        x = GetItem()
+        self.assertEqual(x[self.pos], self.pos)
+        self.assertEqual(x[self.neg], self.neg)
+        self.assertEqual(x[self.neg:self.pos], (-1, maxint))
+        self.assertEqual(x[self.neg:self.pos:1].indices(maxint), (0, maxint, 1))
+
+    def test_getitem(self):
+        self._getitem_helper(object)
+
+    def test_getitem_classic(self):
+        class Empty: pass
+        self._getitem_helper(Empty)
+
+    def test_sequence_repeat(self):
+        self.failUnlessRaises(OverflowError, lambda: "a" * self.pos)
+        self.failUnlessRaises(OverflowError, lambda: "a" * self.neg)
+
+
+def test_main():
+    test_support.run_unittest(
+        BaseTestCase,
+        ListTestCase,
+        TupleTestCase,
+        StringTestCase,
+        UnicodeTestCase,
+        XRangeTestCase,
+        OverflowTestCase,
+    )
+
+if __name__ == "__main__":
+    test_main()