Assert different screen result on CI and local machine

test/irb/yamatanooroti/test_rendering.rb

@@ -176,6 +176,7 @@ def test_symbol_with_backtick
   end
 
   def test_autocomplete_with_showdoc_in_gaps_on_narrow_screen_right
+    omit if Gem::Version.new(RUBY_VERSION) <= Gem::Version.new('3.0')
     write_irbrc <<~'LINES'
       IRB.conf[:PROMPT][:MY_PROMPT] = {
         :PROMPT_I => "%03n> ",
@@ -189,15 +190,28 @@ def test_autocomplete_with_showdoc_in_gaps_on_narrow_screen_right
     start_terminal(4, 19, %W{ruby -I/home/aycabta/ruby/reline/lib -I#{@pwd}/lib #{@pwd}/exe/irb}, startup_message: 'start IRB')
     write("Str\C-i")
     close
-    assert_screen(<<~EOC)
-      start IRB
-      001> String
-           StringPress O
-           StructString
-    EOC
+
+    # This is because on macOS we display different shortcut for displaying the full doc
+    # 'O' is for 'Option' and 'A' is for 'Alt'
+    if RUBY_PLATFORM =~ /darwin/
+      assert_screen(<<~EOC)
+        start IRB
+        001> String
+             StringPress O
+             StructString
+      EOC
+    else
+      assert_screen(<<~EOC)
+        start IRB
+        001> String
+             StringPress A
+             StructString
+      EOC
+    end
   end
 
   def test_autocomplete_with_showdoc_in_gaps_on_narrow_screen_left
+    omit if Gem::Version.new(RUBY_VERSION) <= Gem::Version.new('3.0')
     write_irbrc <<~'LINES'
       IRB.conf[:PROMPT][:MY_PROMPT] = {
         :PROMPT_I => "%03n> ",