Using assertIs in unit tests where appropriate.

[dhermes]

Any usage of self.assertTrue(a is b) has become self.assertIs(a, b).

I used a Python script to make this change:

# Produce file via# $ git grep -n assertTrue | grep ' is ' > change_it.txt# Manually made changes for lines with 12 space indent and for# the files in the Speech packageimportcollectionsdefmain():
withopen('change_it.txt', 'r') asfile_obj:
lines=file_obj.read().strip().split('\n')
by_file=collections.defaultdict(dict)
forlineinlines:
filename, line_no, content=line.split(':')
line_no=int(line_no)
in_file=by_file[filename]
ifline_noinin_file:
raiseKeyError('WAT', filename, line_no)
ifcontent[:24] !=' self.assertTrue(':
raiseValueError(line, 'bad 1')
ifcontent[-1] !=')':
raiseValueError(line, 'bad 2')
left, right=content[24:-1].split(' is ')
if' 'inleftor' 'inright:
raiseValueError(line, 'bad 3')
actual=' self.assertIs({}, {})'.format(left, right)
in_file[line_no] = (content, actual)
forfilename, in_fileinby_file.items():
withopen(filename, 'r') asfile_obj:
lines=file_obj.read().split('\n')
forline_no, pairinin_file.items():
assertlines[line_no-1] ==pair[0]
lines[line_no-1] =pair[1]
withopen(filename, 'w') asfile_obj:
file_obj.write('\n'.join(lines))
if__name__=='__main__':
main()