Selenium2Library系列 keywords 之 _SelectElementKeywords 之 select_from_list(self, locator, *items)

 1     def select_from_list(self, locator, *items):
 2         """Selects `*items` from list identified by `locator`
 3 
 4         If more than one value is given for a single-selection list, the last
 5         value will be selected. If the target list is a multi-selection list,
 6         and `*items` is an empty list, all values of the list will be selected.
 7 
 8         *items try to select by value then by label.
 9 
10         It‘s faster to use ‘by index/value/label‘ functions.
11 
12         An exception is raised for a single-selection list if the last
13         value does not exist in the list and a warning for all other non-
14         existing items. For a multi-selection list, an exception is raised
15         for any and all non-existing values.
16 
17         Select list keywords work on both lists and combo boxes. Key attributes for
18         select lists are `id` and `name`. See `introduction` for details about
19         locating elements.
20         """
21         non_existing_items = []
22 
23         items_str = items and "option(s) ‘%s‘" % ", ".join(items) or "all options"
24         self._info("Selecting %s from list ‘%s‘." % (items_str, locator))
25 
26         select = self._get_select_list(locator)
27 
28         if not items:
29             for i in range(len(select.options)):
30                 select.select_by_index(i)
31             return
32 
33         for item in items:
34             try:
35                 select.select_by_value(item)
36             except:
37                 try:
38                     select.select_by_visible_text(item)
39                 except:
40                     non_existing_items = non_existing_items + [item]
41                     continue
42 
43         if any(non_existing_items):
44             if select.is_multiple:
45                 raise ValueError("Options ‘%s‘ not in list ‘%s‘." % (", ".join(non_existing_items), locator))
46             else:
47                 if any (non_existing_items[:-1]):
48                     items_str = non_existing_items[:-1] and "Option(s) ‘%s‘" % ", ".join(non_existing_items[:-1])
49                     self._warn("%s not found within list ‘%s‘." % (items_str, locator))
50                 if items and items[-1] in non_existing_items:
51                     raise ValueError("Option ‘%s‘ not in list ‘%s‘." % (items[-1], locator))