/usr/lib/python2.7/idlelib/idle_test/test_searchengine.py is in idle-python2.7 2.7.6-8ubuntu0.5.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 | '''Test functions and SearchEngine class in SearchEngine.py.'''
# With mock replacements, the module does not use any gui widgets.
# The use of tk.Text is avoided (for now, until mock Text is improved)
# by patching instances with an index function returning what is needed.
# This works because mock Text.get does not use .index.
import re
import unittest
from test.test_support import requires
from Tkinter import BooleanVar, StringVar, TclError # ,Tk, Text
import tkMessageBox
from idlelib import SearchEngine as se
from idlelib.idle_test.mock_tk import Var, Mbox
from idlelib.idle_test.mock_tk import Text as mockText
def setUpModule():
# Replace s-e module tkinter imports other than non-gui TclError.
se.BooleanVar = Var
se.StringVar = Var
se.tkMessageBox = Mbox
def tearDownModule():
# Restore 'just in case', though other tests should also replace.
se.BooleanVar = BooleanVar
se.StringVar = StringVar
se.tkMessageBox = tkMessageBox
class Mock:
def __init__(self, *args, **kwargs): pass
class GetTest(unittest.TestCase):
# SearchEngine.get returns singleton created & saved on first call.
def test_get(self):
saved_Engine = se.SearchEngine
se.SearchEngine = Mock # monkey-patch class
try:
root = Mock()
engine = se.get(root)
self.assertIsInstance(engine, se.SearchEngine)
self.assertIs(root._searchengine, engine)
self.assertIs(se.get(root), engine)
finally:
se.SearchEngine = saved_Engine # restore class to module
class GetLineColTest(unittest.TestCase):
# Test simple text-independent helper function
def test_get_line_col(self):
self.assertEqual(se.get_line_col('1.0'), (1, 0))
self.assertEqual(se.get_line_col('1.11'), (1, 11))
self.assertRaises(ValueError, se.get_line_col, ('1.0 lineend'))
self.assertRaises(ValueError, se.get_line_col, ('end'))
class GetSelectionTest(unittest.TestCase):
# Test text-dependent helper function.
## # Need gui for text.index('sel.first/sel.last/insert').
## @classmethod
## def setUpClass(cls):
## requires('gui')
## cls.root = Tk()
##
## @classmethod
## def tearDownClass(cls):
## cls.root.destroy()
## del cls.root
def test_get_selection(self):
# text = Text(master=self.root)
text = mockText()
text.insert('1.0', 'Hello World!')
# fix text.index result when called in get_selection
def sel(s):
# select entire text, cursor irrelevant
if s == 'sel.first': return '1.0'
if s == 'sel.last': return '1.12'
raise TclError
text.index = sel # replaces .tag_add('sel', '1.0, '1.12')
self.assertEqual(se.get_selection(text), ('1.0', '1.12'))
def mark(s):
# no selection, cursor after 'Hello'
if s == 'insert': return '1.5'
raise TclError
text.index = mark # replaces .mark_set('insert', '1.5')
self.assertEqual(se.get_selection(text), ('1.5', '1.5'))
class ReverseSearchTest(unittest.TestCase):
# Test helper function that searches backwards within a line.
def test_search_reverse(self):
Equal = self.assertEqual
line = "Here is an 'is' test text."
prog = re.compile('is')
Equal(se.search_reverse(prog, line, len(line)).span(), (12, 14))
Equal(se.search_reverse(prog, line, 14).span(), (12, 14))
Equal(se.search_reverse(prog, line, 13).span(), (5, 7))
Equal(se.search_reverse(prog, line, 7).span(), (5, 7))
Equal(se.search_reverse(prog, line, 6), None)
class SearchEngineTest(unittest.TestCase):
# Test class methods that do not use Text widget.
def setUp(self):
self.engine = se.SearchEngine(root=None)
# Engine.root is only used to create error message boxes.
# The mock replacement ignores the root argument.
def test_is_get(self):
engine = self.engine
Equal = self.assertEqual
Equal(engine.getpat(), '')
engine.setpat('hello')
Equal(engine.getpat(), 'hello')
Equal(engine.isre(), False)
engine.revar.set(1)
Equal(engine.isre(), True)
Equal(engine.iscase(), False)
engine.casevar.set(1)
Equal(engine.iscase(), True)
Equal(engine.isword(), False)
engine.wordvar.set(1)
Equal(engine.isword(), True)
Equal(engine.iswrap(), True)
engine.wrapvar.set(0)
Equal(engine.iswrap(), False)
Equal(engine.isback(), False)
engine.backvar.set(1)
Equal(engine.isback(), True)
def test_setcookedpat(self):
engine = self.engine
engine.setcookedpat('\s')
self.assertEqual(engine.getpat(), '\s')
engine.revar.set(1)
engine.setcookedpat('\s')
self.assertEqual(engine.getpat(), r'\\s')
def test_getcookedpat(self):
engine = self.engine
Equal = self.assertEqual
Equal(engine.getcookedpat(), '')
engine.setpat('hello')
Equal(engine.getcookedpat(), 'hello')
engine.wordvar.set(True)
Equal(engine.getcookedpat(), r'\bhello\b')
engine.wordvar.set(False)
engine.setpat('\s')
Equal(engine.getcookedpat(), r'\\s')
engine.revar.set(True)
Equal(engine.getcookedpat(), '\s')
def test_getprog(self):
engine = self.engine
Equal = self.assertEqual
engine.setpat('Hello')
temppat = engine.getprog()
Equal(temppat.pattern, re.compile('Hello', re.IGNORECASE).pattern)
engine.casevar.set(1)
temppat = engine.getprog()
Equal(temppat.pattern, re.compile('Hello').pattern, 0)
engine.setpat('')
Equal(engine.getprog(), None)
engine.setpat('+')
engine.revar.set(1)
Equal(engine.getprog(), None)
self.assertEqual(Mbox.showerror.message,
'Error: nothing to repeat\nPattern: +')
def test_report_error(self):
showerror = Mbox.showerror
Equal = self.assertEqual
pat = '[a-z'
msg = 'unexpected end of regular expression'
Equal(self.engine.report_error(pat, msg), None)
Equal(showerror.title, 'Regular expression error')
expected_message = ("Error: " + msg + "\nPattern: [a-z")
Equal(showerror.message, expected_message)
Equal(self.engine.report_error(pat, msg, 5), None)
Equal(showerror.title, 'Regular expression error')
expected_message += "\nOffset: 5"
Equal(showerror.message, expected_message)
class SearchTest(unittest.TestCase):
# Test that search_text makes right call to right method.
@classmethod
def setUpClass(cls):
## requires('gui')
## cls.root = Tk()
## cls.text = Text(master=cls.root)
cls.text = mockText()
test_text = (
'First line\n'
'Line with target\n'
'Last line\n')
cls.text.insert('1.0', test_text)
cls.pat = re.compile('target')
cls.engine = se.SearchEngine(None)
cls.engine.search_forward = lambda *args: ('f', args)
cls.engine.search_backward = lambda *args: ('b', args)
## @classmethod
## def tearDownClass(cls):
## cls.root.destroy()
## del cls.root
def test_search(self):
Equal = self.assertEqual
engine = self.engine
search = engine.search_text
text = self.text
pat = self.pat
engine.patvar.set(None)
#engine.revar.set(pat)
Equal(search(text), None)
def mark(s):
# no selection, cursor after 'Hello'
if s == 'insert': return '1.5'
raise TclError
text.index = mark
Equal(search(text, pat), ('f', (text, pat, 1, 5, True, False)))
engine.wrapvar.set(False)
Equal(search(text, pat), ('f', (text, pat, 1, 5, False, False)))
engine.wrapvar.set(True)
engine.backvar.set(True)
Equal(search(text, pat), ('b', (text, pat, 1, 5, True, False)))
engine.backvar.set(False)
def sel(s):
if s == 'sel.first': return '2.10'
if s == 'sel.last': return '2.16'
raise TclError
text.index = sel
Equal(search(text, pat), ('f', (text, pat, 2, 16, True, False)))
Equal(search(text, pat, True), ('f', (text, pat, 2, 10, True, True)))
engine.backvar.set(True)
Equal(search(text, pat), ('b', (text, pat, 2, 10, True, False)))
Equal(search(text, pat, True), ('b', (text, pat, 2, 16, True, True)))
class ForwardBackwardTest(unittest.TestCase):
# Test that search_forward method finds the target.
## @classmethod
## def tearDownClass(cls):
## cls.root.destroy()
## del cls.root
@classmethod
def setUpClass(cls):
cls.engine = se.SearchEngine(None)
## requires('gui')
## cls.root = Tk()
## cls.text = Text(master=cls.root)
cls.text = mockText()
# search_backward calls index('end-1c')
cls.text.index = lambda index: '4.0'
test_text = (
'First line\n'
'Line with target\n'
'Last line\n')
cls.text.insert('1.0', test_text)
cls.pat = re.compile('target')
cls.res = (2, (10, 16)) # line, slice indexes of 'target'
cls.failpat = re.compile('xyz') # not in text
cls.emptypat = re.compile('\w*') # empty match possible
def make_search(self, func):
def search(pat, line, col, wrap, ok=0):
res = func(self.text, pat, line, col, wrap, ok)
# res is (line, matchobject) or None
return (res[0], res[1].span()) if res else res
return search
def test_search_forward(self):
# search for non-empty match
Equal = self.assertEqual
forward = self.make_search(self.engine.search_forward)
pat = self.pat
Equal(forward(pat, 1, 0, True), self.res)
Equal(forward(pat, 3, 0, True), self.res) # wrap
Equal(forward(pat, 3, 0, False), None) # no wrap
Equal(forward(pat, 2, 10, False), self.res)
Equal(forward(self.failpat, 1, 0, True), None)
Equal(forward(self.emptypat, 2, 9, True, ok=True), (2, (9, 9)))
#Equal(forward(self.emptypat, 2, 9, True), self.res)
# While the initial empty match is correctly ignored, skipping
# the rest of the line and returning (3, (0,4)) seems buggy - tjr.
Equal(forward(self.emptypat, 2, 10, True), self.res)
def test_search_backward(self):
# search for non-empty match
Equal = self.assertEqual
backward = self.make_search(self.engine.search_backward)
pat = self.pat
Equal(backward(pat, 3, 5, True), self.res)
Equal(backward(pat, 2, 0, True), self.res) # wrap
Equal(backward(pat, 2, 0, False), None) # no wrap
Equal(backward(pat, 2, 16, False), self.res)
Equal(backward(self.failpat, 3, 9, True), None)
Equal(backward(self.emptypat, 2, 10, True, ok=True), (2, (9,9)))
# Accepted because 9 < 10, not because ok=True.
# It is not clear that ok=True is useful going back - tjr
Equal(backward(self.emptypat, 2, 9, True), (2, (5, 9)))
if __name__ == '__main__':
unittest.main(verbosity=2, exit=2)
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