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
202
203
204
205
|
import argparse
import os
import subprocess
import sys
from collections import namedtuple
import contextlib
import wordcloud as wc
from wordcloud import wordcloud_cli as cli
from mock import patch
import pytest
import matplotlib
matplotlib.use('Agg')
class PassFile(object):
pass
ArgOption = namedtuple('ArgOption', ['cli_name', 'init_name', 'pass_value', 'fail_value'])
ARGUMENT_SPEC_TYPED = [
ArgOption(cli_name='width', init_name='width', pass_value=13, fail_value=1.),
ArgOption(cli_name='height', init_name='height', pass_value=15, fail_value=1.),
ArgOption(cli_name='margin', init_name='margin', pass_value=17, fail_value=1.),
ArgOption(cli_name='relative_scaling', init_name='relative_scaling', pass_value=1, fail_value='c'),
]
ARGUMENT_SPEC_UNARY = [
ArgOption(cli_name='no_collocations', init_name='collocations', pass_value=True, fail_value=1),
ArgOption(cli_name='include_numbers', init_name='include_numbers', pass_value=True, fail_value=2),
ArgOption(cli_name='no_normalize_plurals', init_name='normalize_plurals', pass_value=True, fail_value=3),
ArgOption(cli_name='repeat', init_name='repeat', pass_value=True, fail_value=4),
]
ARGUMENT_SPEC_REMAINING = [
ArgOption(cli_name='stopwords', init_name='stopwords', pass_value=PassFile(), fail_value=None),
ArgOption(cli_name='regexp', init_name='regexp', pass_value=r'\w{2,}', fail_value=r'12('),
ArgOption(cli_name='mask', init_name='mask', pass_value=PassFile(), fail_value=None),
ArgOption(cli_name='fontfile', init_name='font_path', pass_value=PassFile(), fail_value=None),
ArgOption(cli_name='color', init_name='color_func', pass_value='red', fail_value=None),
ArgOption(cli_name='background', init_name='background_color', pass_value='grey', fail_value=None),
ArgOption(cli_name='contour_color', init_name='contour_color', pass_value='grey', fail_value=None),
ArgOption(cli_name='contour_width', init_name='contour_width', pass_value=0.5, fail_value='blue'),
ArgOption(cli_name='min_word_length', init_name='min_word_length', pass_value=5, fail_value='blue'),
ArgOption(cli_name='prefer_horizontal', init_name='prefer_horizontal', pass_value=.1, fail_value='blue'),
ArgOption(cli_name='scale', init_name='scale', pass_value=1., fail_value='blue'),
ArgOption(cli_name='colormap', init_name='colormap', pass_value='Greens', fail_value=1),
ArgOption(cli_name='mode', init_name='mode', pass_value='RGBA', fail_value=2),
ArgOption(cli_name='max_words', init_name='max_words', pass_value=10, fail_value='blue'),
ArgOption(cli_name='min_font_size', init_name='min_font_size', pass_value=10, fail_value='blue'),
ArgOption(cli_name='max_font_size', init_name='max_font_size', pass_value=10, fail_value='blue'),
ArgOption(cli_name='font_step', init_name='font_step', pass_value=10, fail_value='blue'),
ArgOption(cli_name='random_state', init_name='random_state', pass_value=100, fail_value='blue'),
]
ARGUMENT_CLI_NAMES_UNARY = [arg_opt.cli_name for arg_opt in ARGUMENT_SPEC_UNARY]
def all_arguments():
arguments = []
arguments.extend(ARGUMENT_SPEC_TYPED)
arguments.extend(ARGUMENT_SPEC_UNARY)
arguments.extend(ARGUMENT_SPEC_REMAINING)
return arguments
def test_main_passes_arguments_through(tmpdir):
image_filepath = str(tmpdir.join('word_cloud.png'))
args = argparse.Namespace()
for option in all_arguments():
setattr(args, option.init_name, option.pass_value)
text = 'some long text'
image_file = open(image_filepath, 'w')
with patch('wordcloud.wordcloud_cli.wc.WordCloud', autospec=True) as mock_word_cloud:
cli.main(vars(args), text, image_file)
posargs, kwargs = mock_word_cloud.call_args
for option in all_arguments():
assert option.init_name in kwargs
def check_argument(text_filepath, name, result_name, value):
args, text, image_file = cli.parse_args(['--text', text_filepath, '--' + name, str(value)])
assert result_name in args
def check_argument_unary(text_filepath, name, result_name):
args, text, image_file = cli.parse_args(['--text', text_filepath, '--' + name])
assert result_name in args
def check_argument_type(text_filepath, name, value):
with pytest.raises((SystemExit, ValueError),):
args, text, image_file = cli.parse_args(['--text', text_filepath, '--' + name, str(value)])
@pytest.mark.parametrize("option", all_arguments())
def test_parse_args_are_passed_along(option, tmpdir, tmp_text_file):
if option.cli_name in ARGUMENT_CLI_NAMES_UNARY:
check_argument_unary(str(tmp_text_file), option.cli_name, option.init_name)
elif option.cli_name != 'mask':
pass_value = option.pass_value
if isinstance(option.pass_value, PassFile):
input_file = tmpdir.join("%s_file" % option.cli_name)
input_file.write(b"")
pass_value = str(input_file)
check_argument(str(tmp_text_file), option.cli_name, option.init_name, pass_value)
@pytest.mark.parametrize("option", ARGUMENT_SPEC_TYPED)
def test_parse_arg_types(option, tmp_text_file):
check_argument_type(str(tmp_text_file), option.cli_name, option.fail_value)
def test_check_duplicate_color_error(tmpdir, tmp_text_file):
color_mask_file = tmpdir.join("input_color_mask.png")
color_mask_file.write(b"")
with pytest.raises(ValueError, match=r'.*specify either.*'):
cli.parse_args(['--color', 'red', '--colormask', str(color_mask_file), '--text', str(tmp_text_file)])
def test_parse_args_defaults_to_random_color(tmp_text_file):
args, text, image_file = cli.parse_args(['--text', str(tmp_text_file)])
assert args['color_func'] == wc.random_color_func
def test_unicode_text_file():
unicode_file = os.path.join(os.path.dirname(__file__), "unicode_text.txt")
args, text, image_file = cli.parse_args(['--text', unicode_file])
assert len(text) == 16
def test_unicode_with_stopwords():
unicode_file = os.path.join(os.path.dirname(__file__), "unicode_text.txt")
stopwords_file = os.path.join(os.path.dirname(__file__), "unicode_stopwords.txt")
args, text, image_file = cli.parse_args(['--text', unicode_file, '--stopwords', stopwords_file])
# expect the unicode character from stopwords file was correctly read in
assert u'\u304D' in args['stopwords']
def test_cli_writes_to_imagefile(tmpdir, tmp_text_file):
# ensure writing works with all python versions
tmp_image_file = tmpdir.join("word_cloud.png")
tmp_text_file.write(b'some text')
args, text, image_file = cli.parse_args(['--text', str(tmp_text_file), '--imagefile', str(tmp_image_file)])
cli.main(args, text, image_file)
# expecting image to be written to imagefile
assert tmp_image_file.size() > 0
# capsysbinary should be used here, but it's not supported in python 2.
def test_cli_writes_to_stdout(tmpdir, tmp_text_file):
# ensure writing works with all python versions
tmp_image_file = tmpdir.join("word_cloud.png")
tmp_text_file.write(b'some text')
with contextlib.redirect_stdout(tmp_image_file.open('w+')):
args, text, image_file = cli.parse_args(['--text', str(tmp_text_file)])
cli.main(args, text, image_file)
# expecting image to be written to stdout
assert tmp_image_file.size() > 0
def test_cli_regexp(tmp_text_file):
cli.parse_args(['--regexp', r"\w[\w']+", '--text', str(tmp_text_file)])
def test_cli_regexp_invalid(tmp_text_file, capsys):
with pytest.raises(SystemExit):
cli.parse_args(['--regexp', r"invalid[", '--text', str(tmp_text_file)])
_, err = capsys.readouterr()
assert "Invalid regular expression" in err
@pytest.mark.parametrize("command,expected_output, expected_exit_code", [
("wordcloud_cli --help", "usage: wordcloud_cli", 0),
("%s -m wordcloud --help" % sys.executable, "usage: __main__", 0),
("%s %s/../wordcloud/wordcloud_cli.py --help" % (sys.executable, os.path.dirname(__file__)), "To execute the CLI", 1),
])
def test_cli_as_executable(command, expected_output, expected_exit_code, tmpdir, capfd, no_cover_compat):
ret_code = 0
try:
subprocess.check_call(
command,
shell=True,
cwd=str(tmpdir)
)
except subprocess.CalledProcessError as excinfo:
ret_code = excinfo.returncode
out, err = capfd.readouterr()
assert expected_output in out if ret_code == 0 else err
assert ret_code == expected_exit_code
|
