Fix prompt select current with more than 9 options

This fixes hitting <enter> on option 1 when there are more than 9
options (or 2 when more than 20 etc.) by interpreting such selections as
final.

Author: trvrnrth

lib/cli/ui/prompt/interactive_options.rb

@@ -216,8 +216,8 @@ def down
 
         # n is 1-indexed selection
         # n == 0 if "Done" was selected in @multiple mode
-        sig { params(n: Integer).void }
-        def select_n(n)
+        sig { params(n: Integer, final: T::Boolean).void }
+        def select_n(n, final: false)
           if @multiple
             if n == 0
               @answer = []
@@ -230,7 +230,7 @@ def select_n(n)
             end
           elsif n == 0
             # Ignore pressing "0" when not in multiple mode
-          elsif should_enter_select_mode?(n)
+          elsif !final && should_enter_select_mode?(n)
             # When we have more than 9 options, we need to enter select mode
             # to avoid pre-selecting (e.g) 1 when the user wanted 10.
             # This also applies to 2 and 20+ options, 3/30+, etc.
@@ -302,7 +302,7 @@ def select_current
           # Prevent selection of invisible options
           return unless presented_options.any? { |_, num| num == @active }
 
-          select_n(@active)
+          select_n(@active, final: true)
         end
 
         sig { void }

test/cli/ui/prompt_test.rb

@@ -37,6 +37,16 @@ def test_interactive_options_with_more_than_9_options_doesnt_enter_select_mode_w
         assert_output_includes('You chose: 2')
       end
 
+      def test_interactive_options_with_more_than_9_options_allows_enter
+        run_in_process(<<~RUBY)
+          options = ("a".."j").map { |o| o + " was selected"}
+          CLI::UI::Prompt.ask('question', options: options)
+        RUBY
+
+        write("\n") # Choose option 1
+        assert_output_includes('a was selected')
+      end
+
       # ^C is not handled; raises Interrupt, which may be handled by caller.
       def test_confirm_sigint
         jruby_skip('SIGINT shuts down the JVM instead of raising Interrupt')