Bug 22824: Adjust tests to match final behaviours

Finally we diverge quite a lot with how it worked prior to this patch
set. Reflect the changes in the tests

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

t/db_dependent/data/syspref.pref

@@ -23,6 +23,6 @@ Test:
             - "List of fields"
             - pref: syspref_4
               choices:
-                  020: 020
+                  "16" : "16"
                   "020": "020"
                   "123": "123"

t/db_dependent/yaml.t

@@ -23,8 +23,8 @@ is_deeply(
         "Do it",
         {
             choices => {
-                1  => "certainly",
-                '' => "I don't think so"
+                on  => "certainly",
+                off => "I don't think so"
             },
             pref => "syspref_1"
         }
@@ -50,7 +50,7 @@ is_deeply(
         "We love unicode",
         {
             choices => {
-                ''    => "Not really",
+                no  => "Not really",
                 '★' => "❤️"
             },
             pref => "syspref_3"