<?php

namespace com\fwdekker\deathnotifier\validation;


/**
 * Unit tests for {@see IsBooleanRule}.
 */
class IsBooleanRuleTest extends RuleTestTemplate
{
    public static function check_provider(): array
    {
        $type = InvalidTypeException::class;

        return [
            "exception if input is not set" => [new IsBooleanRule(), null, $type, "Required input 'key' not set."],
            "exception if input is integer" => [new IsBooleanRule(), 1, $type, "Input 'key' should be boolean, but is integer."],
            "exception if input is string" => [new IsBooleanRule(), "true", $type, "Input 'key' should be boolean, but is string."],
            "no exception if input is `true`" => [new IsBooleanRule(), true, null, null],
            "no exception if input is `false`" => [new IsBooleanRule(), false, null, null],
        ];
    }
}