}

function validateCliArgs(args = process.argv.slice(2)): void {

const seenValueFlags = new Set<string>();

for (let index = 0; index < args.length; index += 1) {

const arg = args[index] ?? "";

if (BOOLEAN_FLAGS.has(arg)) {

continue;

}

if (VALUE_FLAGS.has(arg)) {

if (seenValueFlags.has(arg)) {

throw new CliArgumentError(`${arg} was provided more than once`);

}

seenValueFlags.add(arg);

const value = args[index + 1];

if (!value || value.startsWith("-")) {

throw new CliArgumentError(`${arg} requires a value`);

expect(result.stdout).toBe("");

expect(result.stderr.trim()).toBe("--providers requires a value");

});

it("rejects duplicate value flags before starting the profiler", () => {

const result = runProfiler("--providers", "48", "--providers", "96");

expect(result.status).toBe(1);

expect(result.stdout).toBe("");

expect(result.stderr.trim()).toBe("--providers was provided more than once");

});

});