tests/python/unittest/test_test_utils.py

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import os

import mxnet as mx

import pytest


def test_download_retries():
    with pytest.raises(Exception):
        mx.test_utils.download("http://doesnotexist.notfound")

def test_download_successful(tmpdir):
    tmp = str(tmpdir)
    tmpfile = os.path.join(tmp, 'README.md')
    mx.test_utils.download("https://raw.githubusercontent.com/apache/mxnet/master/README.md",
                           fname=tmpfile)
    assert os.path.getsize(tmpfile) > 100