src/HttpAssert.php
public static function assertNoContent($status, string $content = null, string $message = ''): void
    {
        self::assertStatusCode($status, self::STATUS_NO_CONTENT, $content, $message);
        PHPUnitAssert::assertEmpty($content, $message ?: 'Expecting HTTP body content to be empty.');
    }
public static function assertNoContent($status, string $content = null, string $message = ''): void
    {
        self::assertStatusCode($status, self::STATUS_NO_CONTENT, $content, $message);
        PHPUnitAssert::assertEmpty($content, $message ?: 'Expecting HTTP body content to be empty.');
    }
Assert a no content response.

@param $status
@param string|null
@param string $message
@return void