import operator
import unittest

from test import support

class Seq1:
    def __init__(self, lst):
        self.lst = lst
    def __len__(self):
        return len(self.lst)
    def __getitem__(self, i):
        return self.lst[i]
    def __add__(self, other):
        return self.lst + other.lst
    def __mul__(self, other):
        return self.lst * other
    def __rmul__(self, other):
        return other * self.lst

class Seq2(object):
    def __init__(self, lst):
        self.lst = lst
    def __len__(self):
        return len(self.lst)
    def __getitem__(self, i):
        return self.lst[i]
    def __add__(self, other):
        return self.lst + other.lst
    def __mul__(self, other):
        return self.lst * other
    def __rmul__(self, other):
        return other * self.lst


class OperatorTestCase(unittest.TestCase):
    def test_lt(self):
        self.assertRaises(TypeError, operator.lt)
        self.assertRaises(TypeError, operator.lt, 1j, 2j)
        self.assertFalse(operator.lt(1, 0))
        self.assertFalse(operator.lt(1, 0.0))
        self.assertFalse(operator.lt(1, 1))
        self.assertFalse(operator.lt(1, 1.0))
        self.assertTrue(operator.lt(1, 2))
        self.assertTrue(operator.lt(1, 2.0))

    def test_le(self):
        self.assertRaises(TypeError, operator.le)
        self.assertRaises(TypeError, operator.le, 1j, 2j)
        self.assertFalse(operator.le(1, 0))
        self.assertFalse(operator.le(1, 0.0))
        self.assertTrue(operator.le(1, 1))
        self.assertTrue(operator.le(1, 1.0))
        self.assertTrue(operator.le(1, 2))
        self.assertTrue(operator.le(1, 2.0))

    def test_eq(self):
        class C(object):
            def __eq__(self, other):
                raise SyntaxError
        self.assertRaises(TypeError, operator.eq)
        self.assertRaises(SyntaxError, operator.eq, C(), C())
        self.assertFalse(operator.eq(1, 0))
        self.assertFalse(operator.eq(1, 0.0))
        self.assertTrue(operator.eq(1, 1))
        self.assertTrue(operator.eq(1, 1.0))
        self.assertFalse(operator.eq(1, 2))
        self.assertFalse(operator.eq(1, 2.0))

    def test_ne(self):
        class C(object):
            def __ne__(self, other):
                raise SyntaxError
        self.assertRaises(TypeError, operator.ne)
        self.assertRaises(SyntaxError, operator.ne, C(), C())
        self.assertTrue(operator.ne(1, 0))
        self.assertTrue(operator.ne(1, 0.0))
        self.assertFalse(operator.ne(1, 1))
        self.assertFalse(operator.ne(1, 1.0))
        self.assertTrue(operator.ne(1, 2))
        self.assertTrue(operator.ne(1, 2.0))

    def test_ge(self):
        self.assertRaises(TypeError, operator.ge)
        self.assertRaises(TypeError, operator.ge, 1j, 2j)
        self.assertTrue(operator.ge(1, 0))
        self.assertTrue(operator.ge(1, 0.0))
        self.assertTrue(operator.ge(1, 1))
        self.assertTrue(operator.ge(1, 1.0))
        self.assertFalse(operator.ge(1, 2))
        self.assertFalse(operator.ge(1, 2.0))

    def test_gt(self):
        self.assertRaises(TypeError, operator.gt)
        self.assertRaises(TypeError, operator.gt, 1j, 2j)
        self.assertTrue(operator.gt(1, 0))
        self.assertTrue(operator.gt(1, 0.0))
        self.assertFalse(operator.gt(1, 1))
        self.assertFalse(operator.gt(1, 1.0))
        self.assertFalse(operator.gt(1, 2))
        self.assertFalse(operator.gt(1, 2.0))

    def test_abs(self):
        self.assertRaises(TypeError, operator.abs)
        self.assertRaises(TypeError, operator.abs, None)
        self.assertEqual(operator.abs(-1), 1)
        self.assertEqual(operator.abs(1), 1)

    def test_add(self):
        self.assertRaises(TypeError, operator.add)
        self.assertRaises(TypeError, operator.add, None, None)
        self.assertTrue(operator.add(3, 4) == 7)

    def test_bitwise_and(self):
        self.assertRaises(TypeError, operator.and_)
        self.assertRaises(TypeError, operator.and_, None, None)
        self.assertTrue(operator.and_(0xf, 0xa) == 0xa)

    def test_concat(self):
        self.assertRaises(TypeError, operator.concat)
        self.assertRaises(TypeError, operator.concat, None, None)
        self.assertTrue(operator.concat('py', 'thon') == 'python')
        self.assertTrue(operator.concat([1, 2], [3, 4]) == [1, 2, 3, 4])
        self.assertTrue(operator.concat(Seq1([5, 6]), Seq1([7])) == [5, 6, 7])
        self.assertTrue(operator.concat(Seq2([5, 6]), Seq2([7])) == [5, 6, 7])
        self.assertRaises(TypeError, operator.concat, 13, 29)

    def test_countOf(self):
        self.assertRaises(TypeError, operator.countOf)
        self.assertRaises(TypeError, operator.countOf, None, None)
        self.assertTrue(operator.countOf([1, 2, 1, 3, 1, 4], 3) == 1)
        self.assertTrue(operator.countOf([1, 2, 1, 3, 1, 4], 5) == 0)

    def test_delitem(self):
        a = [4, 3, 2, 1]
        self.assertRaises(TypeError, operator.delitem, a)
        self.assertRaises(TypeError, operator.delitem, a, None)
        self.assertTrue(operator.delitem(a, 1) is None)
        self.assertTrue(a == [4, 2, 1])

    def test_floordiv(self):
        self.assertRaises(TypeError, operator.floordiv, 5)
        self.assertRaises(TypeError, operator.floordiv, None, None)
        self.assertTrue(operator.floordiv(5, 2) == 2)

    def test_truediv(self):
        self.assertRaises(TypeError, operator.truediv, 5)
        self.assertRaises(TypeError, operator.truediv, None, None)
        self.assertTrue(operator.truediv(5, 2) == 2.5)

    def test_getitem(self):
        a = range(10)
        self.assertRaises(TypeError, operator.getitem)
        self.assertRaises(TypeError, operator.getitem, a, None)
        self.assertTrue(operator.getitem(a, 2) == 2)

    def test_indexOf(self):
        self.assertRaises(TypeError, operator.indexOf)
        self.assertRaises(TypeError, operator.indexOf, None, None)
        self.assertTrue(operator.indexOf([4, 3, 2, 1], 3) == 1)
        self.assertRaises(ValueError, operator.indexOf, [4, 3, 2, 1], 0)

    def test_invert(self):
        self.assertRaises(TypeError, operator.invert)
        self.assertRaises(TypeError, operator.invert, None)
        self.assertEqual(operator.inv(4), -5)

    def test_lshift(self):
        self.assertRaises(TypeError, operator.lshift)
        self.assertRaises(TypeError, operator.lshift, None, 42)
        self.assertTrue(operator.lshift(5, 1) == 10)
        self.assertTrue(operator.lshift(5, 0) == 5)
        self.assertRaises(ValueError, operator.lshift, 2, -1)

    def test_mod(self):
        self.assertRaises(TypeError, operator.mod)
        self.assertRaises(TypeError, operator.mod, None, 42)
        self.assertTrue(operator.mod(5, 2) == 1)

    def test_mul(self):
        self.assertRaises(TypeError, operator.mul)
        self.assertRaises(TypeError, operator.mul, None, None)
        self.assertTrue(operator.mul(5, 2) == 10)

    def test_neg(self):
        self.assertRaises(TypeError, operator.neg)
        self.assertRaises(TypeError, operator.neg, None)
        self.assertEqual(operator.neg(5), -5)
        self.assertEqual(operator.neg(-5), 5)
        self.assertEqual(operator.neg(0), 0)
        self.assertEqual(operator.neg(-0), 0)

    def test_bitwise_or(self):
        self.assertRaises(TypeError, operator.or_)
        self.assertRaises(TypeError, operator.or_, None, None)
        self.assertTrue(operator.or_(0xa, 0x5) == 0xf)

    def test_pos(self):
        self.assertRaises(TypeError, operator.pos)
        self.assertRaises(TypeError, operator.pos, None)
        self.assertEqual(operator.pos(5), 5)
        self.assertEqual(operator.pos(-5), -5)
        self.assertEqual(operator.pos(0), 0)
        self.assertEqual(operator.pos(-0), 0)

    def test_pow(self):
        self.assertRaises(TypeError, operator.pow)
        self.assertRaises(TypeError, operator.pow, None, None)
        self.assertEqual(operator.pow(3,5), 3**5)
        self.assertEqual(operator.__pow__(3,5), 3**5)
        self.assertRaises(TypeError, operator.pow, 1)
        self.assertRaises(TypeError, operator.pow, 1, 2, 3)

    def test_rshift(self):
        self.assertRaises(TypeError, operator.rshift)
        self.assertRaises(TypeError, operator.rshift, None, 42)
        self.assertTrue(operator.rshift(5, 1) == 2)
        self.assertTrue(operator.rshift(5, 0) == 5)
        self.assertRaises(ValueError, operator.rshift, 2, -1)

    def test_contains(self):
        self.assertRaises(TypeError, operator.contains)
        self.assertRaises(TypeError, operator.contains, None, None)
        self.assertTrue(operator.contains(range(4), 2))
        self.assertFalse(operator.contains(range(4), 5))

    def test_setitem(self):
        a = list(range(3))
        self.assertRaises(TypeError, operator.setitem, a)
        self.assertRaises(TypeError, operator.setitem, a, None, None)
        self.assertTrue(operator.setitem(a, 0, 2) is None)
        self.assertTrue(a == [2, 1, 2])
        self.assertRaises(IndexError, operator.setitem, a, 4, 2)

    def test_sub(self):
        self.assertRaises(TypeError, operator.sub)
        self.assertRaises(TypeError, operator.sub, None, None)
        self.assertTrue(operator.sub(5, 2) == 3)

    def test_truth(self):
        class C(object):
            def __bool__(self):
                raise SyntaxError
        self.assertRaises(TypeError, operator.truth)
        self.assertRaises(SyntaxError, operator.truth, C())
        self.assertTrue(operator.truth(5))
        self.assertTrue(operator.truth([0]))
        self.assertFalse(operator.truth(0))
        self.assertFalse(operator.truth([]))

    def test_bitwise_xor(self):
        self.assertRaises(TypeError, operator.xor)
        self.assertRaises(TypeError, operator.xor, None, None)
        self.assertTrue(operator.xor(0xb, 0xc) == 0x7)

    def test_is(self):
        a = b = 'xyzpdq'
        c = a[:3] + b[3:]
        self.assertRaises(TypeError, operator.is_)
        self.assertTrue(operator.is_(a, b))
        self.assertFalse(operator.is_(a,c))

    def test_is_not(self):
        a = b = 'xyzpdq'
        c = a[:3] + b[3:]
        self.assertRaises(TypeError, operator.is_not)
        self.assertFalse(operator.is_not(a, b))
        self.assertTrue(operator.is_not(a,c))

    def test_attrgetter(self):
        class A:
            pass
        a = A()
        a.name = 'arthur'
        f = operator.attrgetter('name')
        self.assertEqual(f(a), 'arthur')
        f = operator.attrgetter('rank')
        self.assertRaises(AttributeError, f, a)
        self.assertRaises(TypeError, operator.attrgetter, 2)
        self.assertRaises(TypeError, operator.attrgetter)

        # multiple gets
        record = A()
        record.x = 'X'
        record.y = 'Y'
        record.z = 'Z'
        self.assertEqual(operator.attrgetter('x','z','y')(record), ('X', 'Z', 'Y'))
        self.assertRaises(TypeError, operator.attrgetter, ('x', (), 'y'))

        class C(object):
            def __getattr__(self, name):
                raise SyntaxError
        self.assertRaises(SyntaxError, operator.attrgetter('foo'), C())

        # recursive gets
        a = A()
        a.name = 'arthur'
        a.child = A()
        a.child.name = 'thomas'
        f = operator.attrgetter('child.name')
        self.assertEqual(f(a), 'thomas')
        self.assertRaises(AttributeError, f, a.child)
        f = operator.attrgetter('name', 'child.name')
        self.assertEqual(f(a), ('arthur', 'thomas'))
        f = operator.attrgetter('name', 'child.name', 'child.child.name')
        self.assertRaises(AttributeError, f, a)
        f = operator.attrgetter('child.')
        self.assertRaises(AttributeError, f, a)
        f = operator.attrgetter('.child')
        self.assertRaises(AttributeError, f, a)

        a.child.child = A()
        a.child.child.name = 'johnson'
        f = operator.attrgetter('child.child.name')
        self.assertEqual(f(a), 'johnson')
        f = operator.attrgetter('name', 'child.name', 'child.child.name')
        self.assertEqual(f(a), ('arthur', 'thomas', 'johnson'))

    def test_itemgetter(self):
        a = 'ABCDE'
        f = operator.itemgetter(2)
        self.assertEqual(f(a), 'C')
        f = operator.itemgetter(10)
        self.assertRaises(IndexError, f, a)

        class C(object):
            def __getitem__(self, name):
                raise SyntaxError
        self.assertRaises(SyntaxError, operator.itemgetter(42), C())

        f = operator.itemgetter('name')
        self.assertRaises(TypeError, f, a)
        self.assertRaises(TypeError, operator.itemgetter)

        d = dict(key='val')
        f = operator.itemgetter('key')
        self.assertEqual(f(d), 'val')
        f = operator.itemgetter('nonkey')
        self.assertRaises(KeyError, f, d)

        # example used in the docs
        inventory = [('apple', 3), ('banana', 2), ('pear', 5), ('orange', 1)]
        getcount = operator.itemgetter(1)
        self.assertEqual(list(map(getcount, inventory)), [3, 2, 5, 1])
        self.assertEqual(sorted(inventory, key=getcount),
            [('orange', 1), ('banana', 2), ('apple', 3), ('pear', 5)])

        # multiple gets
        data = list(map(str, range(20)))
        self.assertEqual(operator.itemgetter(2,10,5)(data), ('2', '10', '5'))
        self.assertRaises(TypeError, operator.itemgetter(2, 'x', 5), data)

    def test_methodcaller(self):
        self.assertRaises(TypeError, operator.methodcaller)
        class A:
            def foo(self, *args, **kwds):
                return args[0] + args[1]
            def bar(self, f=42):
                return f
        a = A()
        f = operator.methodcaller('foo')
        self.assertRaises(IndexError, f, a)
        f = operator.methodcaller('foo', 1, 2)
        self.assertEqual(f(a), 3)
        f = operator.methodcaller('bar')
        self.assertEqual(f(a), 42)
        self.assertRaises(TypeError, f, a, a)
        f = operator.methodcaller('bar', f=5)
        self.assertEqual(f(a), 5)

    def test_inplace(self):
        class C(object):
            def __iadd__     (self, other): return "iadd"
            def __iand__     (self, other): return "iand"
            def __ifloordiv__(self, other): return "ifloordiv"
            def __ilshift__  (self, other): return "ilshift"
            def __imod__     (self, other): return "imod"
            def __imul__     (self, other): return "imul"
            def __ior__      (self, other): return "ior"
            def __ipow__     (self, other): return "ipow"
            def __irshift__  (self, other): return "irshift"
            def __isub__     (self, other): return "isub"
            def __itruediv__ (self, other): return "itruediv"
            def __ixor__     (self, other): return "ixor"
            def __getitem__(self, other): return 5  # so that C is a sequence
        c = C()
        self.assertEqual(operator.iadd     (c, 5), "iadd")
        self.assertEqual(operator.iand     (c, 5), "iand")
        self.assertEqual(operator.ifloordiv(c, 5), "ifloordiv")
        self.assertEqual(operator.ilshift  (c, 5), "ilshift")
        self.assertEqual(operator.imod     (c, 5), "imod")
        self.assertEqual(operator.imul     (c, 5), "imul")
        self.assertEqual(operator.ior      (c, 5), "ior")
        self.assertEqual(operator.ipow     (c, 5), "ipow")
        self.assertEqual(operator.irshift  (c, 5), "irshift")
        self.assertEqual(operator.isub     (c, 5), "isub")
        self.assertEqual(operator.itruediv (c, 5), "itruediv")
        self.assertEqual(operator.ixor     (c, 5), "ixor")
        self.assertEqual(operator.iconcat  (c, c), "iadd")
        self.assertEqual(operator.__iadd__     (c, 5), "iadd")
        self.assertEqual(operator.__iand__     (c, 5), "iand")
        self.assertEqual(operator.__ifloordiv__(c, 5), "ifloordiv")
        self.assertEqual(operator.__ilshift__  (c, 5), "ilshift")
        self.assertEqual(operator.__imod__     (c, 5), "imod")
        self.assertEqual(operator.__imul__     (c, 5), "imul")
        self.assertEqual(operator.__ior__      (c, 5), "ior")
        self.assertEqual(operator.__ipow__     (c, 5), "ipow")
        self.assertEqual(operator.__irshift__  (c, 5), "irshift")
        self.assertEqual(operator.__isub__     (c, 5), "isub")
        self.assertEqual(operator.__itruediv__ (c, 5), "itruediv")
        self.assertEqual(operator.__ixor__     (c, 5), "ixor")
        self.assertEqual(operator.__iconcat__  (c, c), "iadd")

    def test_length_hint(self):
        class X(object):
            def __init__(self, value):
                self.value = value

            def __length_hint__(self):
                if type(self.value) is type:
                    raise self.value
                else:
                    return self.value

        self.assertEqual(operator.length_hint([], 2), 0)
        self.assertEqual(operator.length_hint(iter([1, 2, 3])), 3)

        self.assertEqual(operator.length_hint(X(2)), 2)
        self.assertEqual(operator.length_hint(X(NotImplemented), 4), 4)
        self.assertEqual(operator.length_hint(X(TypeError), 12), 12)
        with self.assertRaises(TypeError):
            operator.length_hint(X("abc"))
        with self.assertRaises(ValueError):
            operator.length_hint(X(-2))
        with self.assertRaises(LookupError):
            operator.length_hint(X(LookupError))


def test_main(verbose=None):
    import sys
    test_classes = (
        OperatorTestCase,
    )

    support.run_unittest(*test_classes)

    # verify reference counting
    if verbose and hasattr(sys, "gettotalrefcount"):
        import gc
        counts = [None] * 5
        for i in range(len(counts)):
            support.run_unittest(*test_classes)
            gc.collect()
            counts[i] = sys.gettotalrefcount()
        print(counts)

if __name__ == "__main__":
    test_main(verbose=True)