@@ -668,3 +668,47 @@ func TestSetBoolWithMultipleArguments(t *testing.T) {
668668 require .Error (t , err )
669669 require .Contains (t , string (stderr ), "Can't set multiple values in key library.enable_unsafe_install" )
670670}
671+ 672+ func TestDelete (t * testing.T ) {
673+ env , cli := integrationtest .CreateArduinoCLIWithEnvironment (t )
674+ defer env .CleanUp ()
675+ 676+ // Create a config file
677+ _ , _ , err := cli .Run ("config" , "init" , "--dest-dir" , "." )
678+ require .NoError (t , err )
679+ 680+ // Verifies default state
681+ stdout , _ , err := cli .Run ("config" , "dump" , "--format" , "json" )
682+ require .NoError (t , err )
683+ requirejson .Query (t , stdout , ".library | .enable_unsafe_install" , "false" )
684+ 685+ // Delete config key
686+ _ , _ , err = cli .Run ("config" , "delete" , "library.enable_unsafe_install" )
687+ require .NoError (t , err )
688+ 689+ // Verifies value is not found, we read directly from file instead of using
690+ // the dump command since that would still print the deleted value if it has
691+ // a default
692+ configFile := cli .WorkingDir ().Join ("arduino-cli.yaml" )
693+ configLines , err := configFile .ReadFileAsLines ()
694+ require .NoError (t , err )
695+ require .NotContains (t , configLines , "enable_unsafe_install" )
696+ 697+ // Verifies default state
698+ stdout , _ , err = cli .Run ("config" , "dump" , "--format" , "json" )
699+ require .NoError (t , err )
700+ requirejson .Query (t , stdout , ".board_manager | .additional_urls" , "[]" )
701+ 702+ // Delete config key and sub keys
703+ _ , _ , err = cli .Run ("config" , "delete" , "board_manager" )
704+ require .NoError (t , err )
705+ 706+ // Verifies value is not found, we read directly from file instead of using
707+ // the dump command since that would still print the deleted value if it has
708+ // a default
709+ configFile = cli .WorkingDir ().Join ("arduino-cli.yaml" )
710+ configLines , err = configFile .ReadFileAsLines ()
711+ require .NoError (t , err )
712+ require .NotContains (t , configLines , "additional_urls" )
713+ require .NotContains (t , configLines , "board_manager" )
714+ }
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