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import string
from redis.commands.helpers import (
    delist,
    list_or_args,
    nativestr,
    parse_to_list,
    quote_string,
    random_string
)


def test_list_or_args():
    k = ["hello, world"]
    a = ["some", "argument", "list"]
    assert list_or_args(k, a) == k+a

    for i in ["banana", b"banana"]:
        assert list_or_args(i, a) == [i] + a


def test_parse_to_list():
    r = ["hello", b"my name", "45", "555.55", "is simon!", None]
    assert parse_to_list(r) == \
        ["hello", "my name", 45, 555.55, "is simon!", None]


def test_nativestr():
    assert nativestr('teststr') == 'teststr'
    assert nativestr(b'teststr') == 'teststr'
    assert nativestr('null') is None


def test_delist():
    assert delist(None) is None
    assert delist([b'hello', 'world', b'banana']) == \
        ['hello', 'world', 'banana']


def test_random_string():
    assert len(random_string()) == 10
    assert len(random_string(15)) == 15
    for a in random_string():
        assert a in string.ascii_lowercase


def test_quote_string():
    assert quote_string("hello world!") == '"hello world!"'
    assert quote_string('') == '""'
    assert quote_string('hello world!') == '"hello world!"'