~~ lineWidth: 30, arguments.spaceAround: true ~~
== should add spaces around arguments ==
testing(true);
testing(1, 2, 3);
testing({a: 5});
testing({abcdefghijklmnop: true, bcdefg: false});
testing(123456, 123456, 123456, 123456);
then(() => ({abcdefghijklmnop: true, bcdefg: false}));
then(() => done());

[expect]
testing( true );
testing( 1, 2, 3 );
testing( { a: 5 } );
testing( {
    abcdefghijklmnop: true,
    bcdefg: false,
} );
testing(
    123456,
    123456,
    123456,
    123456,
);
then( () => ({
    abcdefghijklmnop: true,
    bcdefg: false,
}) );
then( () => done() );

== should not add spaces on empty arguments ==
testing()
testing() === true;

[expect]
testing();
testing() === true;

== should not add spaces when indented ==
function test() {
    then( () =>
        abcdefghijklmnop()
     );
}

[expect]
function test() {
    then( () =>
        abcdefghijklmnop()
    );
}