CODE EXAMPLE FOR TYPESCRIPT

RuleTester.only(...)

ruleTester.run("my-rule", myRule, {
    valid: [
        RuleTester.only("const valid = 42;"),
        // Other valid cases
    ],
    invalid: [
        {
            code: "const invalid = 42;",
            only: true,
        },
        // Other invalid cases
    ]
})