Combine the choice widget field value unit tests into one parametrized unit test
Combine the choice widget field value unit tests into one parametrized unit test

This commit follows the same pattern as another unit test in this file
and both reduces existing and future code duplication (since the next
commit will extend this test with an additional input).

caremerge/pdf.js,mozilla/pdf.js,showpad/mozilla-pdf.js,macroplant/pdf.js,macroplant/pdf.js,macroplant/pdf.js,Snuffleupagus/pdf.js,mozilla/pdf.js,nawawi/pdf.js,mozilla/pdf.js,Snuffleupagus/pdf.js,Shoobx/pdf.js,xavier114fch/pdf.js,timvandermeij/pdf.js,Shoobx/pdf.js,timvandermeij/pdf.js,showpad/mozilla-pdf.js,caremerge/pdf.js,showpad/mozilla-pdf.js,nawawi/pdf.js,nawawi/pdf.js,timvandermeij/pdf.js,Shoobx/pdf.js,xavier114fch/pdf.js,Snuffleupagus/pdf.js