def test_sort_filter_by_title():
"""
Get some tiddlers by a filter, and then sort them.
"""
filter_function = filter.make_sort()
found_tiddlers = filter_function('+title', tiddlers)
assert [tiddler.title for tiddler in found_tiddlers] == ['TiddlerOne', 'TiddlerThree', 'TiddlerTwo']
def test_sort_filter_by_bogus():
"""
Attempt to sort by a field that does not exist. Get an error.
"""
filter_function = filter.make_sort()
py.test.raises(FilterError, 'filter_function("+monkey", tiddlers)')
