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from argparse import Namespace
import errno
import hashlib
import os
import socket
import sys
from unittest import TestCase
from mock import patch, call
from download_juju import (
_download,
download_files,
download_candidate_juju,
download_released_juju,
get_md5,
mkdir_p,
parse_args,
s3_download_files,
select_build
)
from tests import parse_error
from utility import temp_dir
class SelectBuild(TestCase):
def test_select_build(self):
builds = [
'j/p/r/build-win-client/build-829/c/juju-setup-1.25-alpha1.exe']
build = select_build(builds)
self.assertEqual(
build, 's3://juju-qa-data/j/p/r/build-win-client/build-829')
def test_select_builds(self):
builds = [
'j/p/r/build-win-client/build-829/c/juju-setup-1.25-alpha1.exe',
'j/p/r/build-win-client/build-1000/c/juju-setup-1.25-alpha1.exe',
'j/p/v/build-win-client/build-2000/c/juju-setup-1.25-alpha1.exe',
'j/p/r/build-win-client/build-999/c/juju-setup-1.25-alpha1.exe',
]
build = select_build(builds)
self.assertEqual(
build, 's3://juju-qa-data/j/p/v/build-win-client/build-2000')
class TestGetMD5(TestCase):
def test_get_md5_empty(self):
with temp_dir() as d:
filename = os.path.join(d, "afile")
open(filename, "w").close()
expected_md5 = hashlib.md5("").hexdigest()
self.assertEqual(expected_md5, get_md5(filename))
def test_get_md5_size(self):
with temp_dir() as d:
filename = os.path.join(d, "afile")
contents = "some string longer\nthan the size passed\n"
with open(filename, "w") as f:
f.write(contents)
expected_md5 = hashlib.md5(contents).hexdigest()
self.assertEqual(expected_md5, get_md5(filename, size=4))
class TestMkdir(TestCase):
def test_mkdir_p(self):
with temp_dir() as d:
path = os.path.join(d, 'a/b/c')
mkdir_p(path)
self.assertTrue(os.path.isdir(path))
class TestParseArgs(TestCase):
def test_parse_args(self):
with parse_error(self) as stderr:
parse_args([])
self.assertRegexpMatches(stderr.getvalue(), 'error: too few arguments')
self.assertEqual(
parse_args(['/cred/path']),
Namespace(credential_path='/cred/path', platform=sys.platform,
released=False, revision=None, verbose=0))
self.assertEqual(
parse_args(['/cred/path', '-r']),
Namespace(credential_path='/cred/path', platform=sys.platform,
released=True, revision=None, verbose=0))
self.assertEqual(
parse_args(['/cred/path', '-r', '-c', '2999', '3001']),
Namespace(credential_path='/cred/path', platform=sys.platform,
released=True, revision=['2999', '3001'], verbose=0))
class TestDownloadFiles(TestCase):
def test_download(self):
content = "hello"
key = KeyStub("test", "hello")
with temp_dir() as d:
dst = os.path.join(d, "test.txt")
_download(key, dst)
self.assertEqual(content, get_file_content(dst))
def test_download_retries(self):
def se(e):
raise socket.error(errno.ECONNRESET, "reset")
key = KeyStub("test", "foo")
with temp_dir() as d:
dst = os.path.join(d, "test.txt")
with patch.object(key, 'get_contents_to_filename', autospec=True,
side_effect=se) as gcf:
with self.assertRaises(socket.error):
_download(key, dst)
self.assertEqual(gcf.call_count, 3)
def test_download_files(self):
keys = [KeyStub("test.txt", "foo"), KeyStub("test2.txt", "foo2")]
with temp_dir() as dst:
downloaded_files = download_files(keys, dst)
self.assertItemsEqual(os.listdir(dst), ['test.txt', 'test2.txt'])
self.assertEqual("foo", get_file_content('test.txt', dst))
self.assertEqual("foo2", get_file_content('test2.txt', dst))
self.assertItemsEqual(downloaded_files, ['test.txt', 'test2.txt'])
def test_download_files__matching_file_already_exists(self):
keys = [KeyStub("test.txt", "foo"), KeyStub("test2.txt", "foo2")]
with temp_dir() as dst:
set_file_content("test.txt", "foo", dst)
downloaded_files = download_files(keys, dst)
self.assertItemsEqual(os.listdir(dst), ['test.txt', 'test2.txt'])
self.assertEqual("foo", get_file_content('test.txt', dst))
self.assertEqual("foo2", get_file_content('test2.txt', dst))
self.assertItemsEqual(downloaded_files, ['test2.txt'])
def test_download_files__md5_mismatch(self):
keys = [KeyStub("test.txt", "foo"), KeyStub("test2.txt", "foo2")]
with temp_dir() as dst:
set_file_content("test.txt", "not foo", dst)
downloaded_files = download_files(keys, dst)
self.assertItemsEqual(os.listdir(dst), ['test.txt', 'test2.txt'])
self.assertEqual("foo", get_file_content('test.txt', dst))
self.assertEqual("foo2", get_file_content('test2.txt', dst))
self.assertItemsEqual(downloaded_files, ['test.txt', 'test2.txt'])
def test_download_files__overwrite(self):
keys = [KeyStub("test.txt", "foo"), KeyStub("test2.txt", "foo2")]
with temp_dir() as dst:
set_file_content("test.txt", "foo", dst)
downloaded_files = download_files(keys, dst, overwrite=True)
self.assertItemsEqual(os.listdir(dst), ['test.txt', 'test2.txt'])
self.assertEqual("foo", get_file_content('test.txt', dst))
self.assertEqual("foo2", get_file_content('test2.txt', dst))
self.assertItemsEqual(downloaded_files, ['test.txt', 'test2.txt'])
def test_download_files__suffix(self):
keys = [KeyStub("test.txt", "foo"), KeyStub("test2.tar", "foo2")]
with temp_dir() as dst:
downloaded_files = download_files(keys, dst, suffix=".tar")
self.assertItemsEqual(os.listdir(dst), ['test2.tar'])
self.assertEqual("foo2", get_file_content('test2.tar', dst))
self.assertItemsEqual(downloaded_files, ['test2.tar'])
def test_download_files__dst_dir_none(self):
keys = [KeyStub("test.txt", "foo"), KeyStub("test2.txt", "foo2")]
with patch('download_juju._download', autospec=True) as dj:
download_files(keys)
self.assertFalse(dj.called)
def test_s3_download_files(self):
with temp_dir() as dst:
with patch('download_juju.s3_auth_with_rc', autospec=True) as ds:
with patch(
'download_juju.download_files', autospec=True) as dd:
s3_download_files('s3://foo/path', '/cred/path', dst)
ds.assert_called_once_with('/cred/path')
dd.assert_called_once_with(
ds.return_value.get_bucket.return_value.list.return_value,
dst, False, None)
def test_download_released_juju(self):
with patch('download_juju.s3_download_files', autospec=True) as dd:
download_released_juju(
Namespace(platform='win32', credential_path='/tmp'))
s3path = 's3://juju-qa-data/client-archive/win/'
dst = os.path.join(os.environ['HOME'], 'old-juju', 'win')
dd.assert_called_once_with(s3path, credential_path='/tmp', dst_dir=dst)
def test_download_candidate_juju(self):
with patch('download_juju.s3_download_files', autospec=True) as ds:
with patch('download_juju.select_build', autospec=True) as db:
download_candidate_juju(
Namespace(platform='darwin', credential_path='/tmp',
revision=['11', '33']))
dst = os.path.join(os.environ['HOME'], 'candidate', 'osx')
self.assertEqual(ds.call_count, 4)
exp = 's3://juju-qa-data/juju-ci/products/version-{}/build-{}-client/'
calls = [
call(exp.format('11', 'osx'), credential_path='/tmp',
suffix='.tar.gz'),
call(db.return_value, credential_path='/tmp', suffix='.tar.gz',
dst_dir=dst),
call(exp.format('33', 'osx'), credential_path='/tmp',
suffix='.tar.gz'),
call(db.return_value, credential_path='/tmp', suffix='.tar.gz',
dst_dir=dst),
]
self.assertEqual(ds.call_args_list, calls)
self.assertEqual(db.call_count, 2)
class KeyStub():
def __init__(self, name, content=""):
self.name = name
self.etag = '"{}"'.format(hashlib.md5(content).hexdigest())
self.content = content
def get_contents_to_filename(self, filename):
with open(filename, "wb") as f:
f.write(self.content)
def set_file_content(filename, content, dst_dir=None):
dst_path = os.path.join(dst_dir, filename) if dst_dir else filename
with open(dst_path, "wb") as f:
f.write(content)
def get_file_content(filename, dst_dir=None):
dst_path = os.path.join(dst_dir, filename) if dst_dir else filename
with open(dst_path) as f:
return f.read()
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