1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
# -*- coding: utf-8 -*-
from __future__ import absolute_import, print_function, division
import sys
import os
from importlib import import_module
import pytest
from petl.compat import PY3
from petl.test.helpers import ieq, eq_
from petl.io.avro import fromavro, toavro
from petl.io.csv import fromcsv, tocsv
from petl.io.json import fromjson, tojson
from petl.io.xlsx import fromxlsx, toxlsx
from petl.io.xls import fromxls, toxls
from petl.util.vis import look
# region Codec test cases
def test_helper_local():
if PY3:
_ensure_dir("./tmp")
_write_read_into_url("./tmp/example.")
def test_helper_fsspec():
try:
import fsspec # noqa: F401
except ImportError as e:
pytest.skip("SKIP FSSPEC helper tests: %s" % e)
else:
_write_read_from_env_matching("PETL_TEST_")
def test_helper_smb():
try:
import smbclient # noqa: F401
except ImportError as e:
pytest.skip("SKIP SMB helper tests: %s" % e)
else:
_write_read_from_env_url("PETL_SMB_URL")
def test_helper_smb_url_parse():
from petl.io.remotes import _parse_smb_url
url = r"smb://workgroup;user:password@server:444/share/folder/file.csv"
domain, host, port, user, passwd, server_path = _parse_smb_url(url)
# print("Parsed:", domain, host, port, user, passwd, server_path)
eq_(domain, r"workgroup")
eq_(host, r"server")
eq_(port, 444)
eq_(user, r"user")
eq_(passwd, r"password")
eq_(server_path, "\\\\server\\share\\folder\\file.csv")
# endregion
# region Execution
def _ensure_dir(directory):
if not os.path.exists(directory):
os.makedirs(directory)
def _write_read_from_env_matching(prefix):
q = 0
for variable, base_url in os.environ.items():
if variable.upper().startswith(prefix.upper()):
fmsg = "\n {}: {} -> ".format(variable, base_url)
print(fmsg, file=sys.stderr, end="")
_write_read_into_url(base_url)
print("DONE ", file=sys.stderr, end="")
q += 1
if q < 1:
msg = """SKIPPED
For testing remote source define a environment variable:
$ export PETL_TEST_<protocol>='<protocol>://myuser:mypassword@host:port/path/to/folder'"""
print(msg, file=sys.stderr)
def _write_read_from_env_url(env_var_name):
base_url = os.getenv(env_var_name, "skip")
if base_url == "skip":
print("SKIPPED ", file=sys.stderr, end="")
else:
_write_read_into_url(base_url)
print("DONE ", file=sys.stderr, end="")
def _write_read_into_url(base_url):
_write_read_file_into_url(base_url, "filename10.csv")
_write_read_file_into_url(base_url, "filename11.csv", "gz")
_write_read_file_into_url(base_url, "filename12.csv", "xz")
_write_read_file_into_url(base_url, "filename13.csv", "zst")
_write_read_file_into_url(base_url, "filename14.csv", "lz4")
_write_read_file_into_url(base_url, "filename15.csv", "snappy")
_write_read_file_into_url(base_url, "filename20.json")
_write_read_file_into_url(base_url, "filename21.json", "gz")
_write_read_file_into_url(base_url, "filename30.avro", pkg='fastavro')
_write_read_file_into_url(base_url, "filename40.xlsx", pkg='openpyxl')
_write_read_file_into_url(base_url, "filename50.xls", pkg='xlwt')
def _build_source_url_from(base_url, filename, compression=None):
is_local = base_url.startswith("./")
if compression is not None:
if is_local:
return None
filename = filename + "." + compression
import fsspec
codec = fsspec.utils.infer_compression(filename)
if codec is None:
print("\n - %s SKIPPED " % filename, file=sys.stderr, end="")
return None
print("\n - %s " % filename, file=sys.stderr, end="")
if is_local:
source_url = base_url + filename
else:
source_url = os.path.join(base_url, filename)
return source_url
def _write_read_file_into_url(base_url, filename, compression=None, pkg=None):
if not _is_installed(pkg, filename):
return
source_url = _build_source_url_from(base_url, filename, compression)
if source_url is None:
return
actual = None
if ".avro" in filename:
toavro(_table, source_url)
actual = fromavro(source_url)
elif ".xlsx" in filename:
toxlsx(_table, source_url, 'test1', mode='overwrite')
toxlsx(_table2, source_url, 'test2', mode='add')
actual = fromxlsx(source_url, 'test1')
elif ".xls" in filename:
toxls(_table, source_url, 'test')
actual = fromxls(source_url, 'test')
elif ".json" in filename:
tojson(_table, source_url)
actual = fromjson(source_url)
elif ".csv" in filename:
tocsv(_table, source_url, encoding="ascii", lineterminator="\n")
actual = fromcsv(source_url, encoding="ascii")
if actual is not None:
_show__rows_from("Expected:", _table)
_show__rows_from("Actual:", actual)
ieq(_table, actual)
ieq(_table, actual) # verify can iterate twice
else:
print("\n - %s SKIPPED " % filename, file=sys.stderr, end="")
def _show__rows_from(label, test_rows, limit=0):
print(label)
print(look(test_rows, limit=limit))
def _is_installed(package_name, message=None):
if package_name is None:
return True # Not required
try:
mod = import_module(package_name)
found = mod is not None
if not found:
msg = message or package_name
print("\n - %s SKIPPED " % msg, file=sys.stderr, end="")
return found
except Exception as exm:
print(exm, file=sys.stderr)
return False
# endregion
# region Mockup data
_table = (
(u"name", u"friends", u"age"),
(u"Bob", "42", "33"),
(u"Jim", "13", "69"),
(u"Joe", "86", "17"),
(u"Ted", "23", "51"),
)
_table2 = (
(u"name", u"friends", u"age"),
(u"Giannis", "31", "12"),
(u"James", "38", "8"),
(u"Stephen", "28", "4"),
(u"Jason", "23", "12"),
)
# endregion
|
