import ssl

import certifi
import pytest

from cibuildwheel.util import download

DOWNLOAD_URL = 'https://raw.githubusercontent.com/joerick/cibuildwheel/v1.6.3/requirements-dev.txt'


def test_download(monkeypatch, tmp_path):
    monkeypatch.delenv('SSL_CERT_FILE', raising=False)
    dest = tmp_path / 'file.txt'
    download(DOWNLOAD_URL, dest)
    assert len(dest.read_bytes()) == 134


def test_download_good_ssl_cert_file(monkeypatch, tmp_path):
    monkeypatch.setenv('SSL_CERT_FILE', certifi.where())
    dest = tmp_path / 'file.txt'
    download(DOWNLOAD_URL, dest)
    assert len(dest.read_bytes()) == 134


def test_download_bad_ssl_cert_file(monkeypatch, tmp_path):
    bad_cafile = tmp_path / 'ca.pem'
    bad_cafile.write_text('bad certificates')
    monkeypatch.setenv('SSL_CERT_FILE', str(bad_cafile))
    dest = tmp_path / 'file.txt'
    with pytest.raises(ssl.SSLError):
        download(DOWNLOAD_URL, dest)