327 lines
11 KiB
Python
327 lines
11 KiB
Python
|
'''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.support import requires
|
||
|
|
from tkinter import BooleanVar, StringVar, TclError # ,Tk, Text
|
||
|
|
import tkinter.messagebox as 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()
|
||
|
|
|
||
|
|
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()
|
||
|
|
|
||
|
|
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()
|
||
|
|
|
||
|
|
@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)
|