Add new tests. re #96

--HG--
extra : rebase_source : 2b11d4badf9e567c7f29500c75b7ccc7c0cf07a7
Add a coverage checked in PHP. re #96

--HG--
extra : rebase_source : a02ab0e4de3b813f3f81c1af799a293497019954
Add a case where the translation string is not found. re #96
Test typeahead search. re #96
Merge