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
206
207
208
209
210
|
"""
Tests for the mayavi.core.common module.
"""
# Author: Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
# Copyright (c) 2008, Enthought, Inc.
# License: BSD Style.
import os
from subprocess import check_output
import sys
import unittest
from traitsui.api import View
from mayavi.core.common import get_object_path, get_engine
from mayavi.core.file_data_source import NoUITimer
from mayavi.sources.parametric_surface import \
ParametricSurface
from mayavi.modules.outline import Outline
from mayavi.modules.surface import Surface
from mayavi.core.null_engine import NullEngine
def test_core_common_pyface_import_honors_env_var():
# Given
cmd = [sys.executable, "-c",
"import mayavi.core.common as C; print(C.pyface)"]
def _make_env(ets=None, ci=None):
env = dict(os.environ)
if 'ETS_TOOLKIT' in env:
del env['ETS_TOOLKIT']
if 'CI' in env:
del env['CI']
if ets is not None:
env['ETS_TOOLKIT'] = ets
if ci is not None:
env['CI'] = ci
return env
# When
out = check_output(cmd, env=_make_env())
result = out.strip().decode('utf-8')
# Then
assert result != 'None'
# When
out = check_output(cmd, env=_make_env(ets='qt'))
result = out.strip().decode('utf-8')
# Then
assert result != 'None'
# When
out = check_output(cmd, env=_make_env(ets='null'))
result = out.strip().decode('utf-8')
# Then
assert result == 'None'
# When
out = check_output(cmd, env=_make_env(ets='qt', ci='1'))
result = out.strip().decode('utf-8')
# Then
assert result == 'None'
class TestCoreCommon(unittest.TestCase):
def setUp(self):
e = NullEngine()
e.start()
e.new_scene()
scene = e.scenes[-1]
s = ParametricSurface()
e.add_source(s)
o = Outline()
s.add_child(o)
o1 = Outline()
s.add_child(o1)
self.scene = scene
self.e = e
self.s = s
self.o = o
self.o1 = o1
return
def test_get_object_path(self):
"Check if the get_object_path method works correctly."
e, scene, s, o, o1 = self.e, self.scene, self.s, self.o, self.o1
value = get_object_path(scene, e)
self.assertEqual(value, 'engine.scenes[0]')
value = get_object_path(s, e)
self.assertEqual(value, 'engine.scenes[0].children[0]')
value = get_object_path(o.module_manager, e)
self.assertEqual(value,
'engine.scenes[0].children[0].children[0]')
value = get_object_path(o, e)
self.assertEqual(value,
'engine.scenes[0].children[0].children[0].children[0]')
value = get_object_path(o1, e)
self.assertEqual(value,
'engine.scenes[0].children[0].children[0].children[1]')
# With respect to the scene.
value = get_object_path(o, scene, 'scene')
self.assertEqual(value,
'scene.children[0].children[0].children[0]')
# With respect to the source.
value = get_object_path(o, s, 's')
self.assertEqual(value, 's.children[0].children[0]')
value = get_object_path(o1, s, 's')
self.assertEqual(value, 's.children[0].children[1]')
def test_get_engine(self):
e, scene, s, o, o1 = self.e, self.scene, self.s, self.o, self.o1
self.assertEqual(e, get_engine(scene))
self.assertEqual(e, get_engine(s))
self.assertEqual(e, get_engine(o))
self.assertEqual(e, get_engine(o1))
self.assertEqual(e, get_engine(o.module_manager))
self.assertEqual(e, get_engine(o1.module_manager))
def test_remove(self):
"Does obj.remove() work correctly"
# Fails only when the current object is the one that is removed.
self.e.current_object = self.o1
mm = self.o1.module_manager
# Remove the object.
self.o1.remove()
# Now add another object.
o1 = Outline()
self.e.add_module(o1)
# Is it really added?
self.assertEqual(o1.module_manager, mm)
self.assertEqual(o1.parent, mm)
class TestHandCraftedView(unittest.TestCase):
def test_that_custom_views_are_loaded(self):
# Given/When
s = Surface()
# Then
self.assertTrue(os.path.exists(s._view_filename))
self.assertTrue(s._module_view is not None)
self.assertTrue(isinstance(s._module_view, View))
# When there is no view, it should work safely.
# Given/When
o = Outline()
# Then
self.assertFalse(os.path.exists(o._view_filename))
self.assertEqual(o._module_view, None)
class TestNoUITimer(unittest.TestCase):
def test_simple_timer(self):
class A(object):
def __init__(self):
self.count = 0
self.timer = NoUITimer(10, self.step)
def step(self):
self.count += 1
if self.count > 10:
self.timer.Stop()
a = A()
a.timer.Start()
self.assertEqual(a.count, 11)
self.assertFalse(a.timer.IsRunning())
def test_timer_stops_on_error_and_raises(self):
class A(object):
def __init__(self):
self.count = 0
self.timer = NoUITimer(10, self.step)
def step(self):
self.count += 1
raise(RuntimeError('Oops'))
a = A()
self.assertRaises(RuntimeError, a.timer.Start)
self.assertEqual(a.count, 1)
self.assertFalse(a.timer.IsRunning())
def test_timer_stops_on_stop_iteration(self):
class A(object):
def __init__(self):
self.count = 0
self.timer = NoUITimer(10, self.step)
def step(self):
self.count += 1
if self.count > 10:
raise(StopIteration('Stop'))
a = A()
a.timer.Start()
self.assertEqual(a.count, 11)
self.assertFalse(a.timer.IsRunning())
if __name__ == '__main__':
unittest.main()
|
