<?php

declare( strict_types=1 );

namespace Tests\Expression;

use Exception;
use Hosterra\FluxBuilder\Expression\KeyFilter;
use PHPUnit\Framework\TestCase;

final class KeyFilterExpressionTest extends TestCase {
	public function testSimpleKeyvalue() {
		$keyFilter = KeyFilter::setEqualTo( '_measurement', 'test_measurement' )
		                      ->andEqualTo( '_field', 'user' )
		                      ->or( 'count', '>=', '1' )
		                      ->and( 'user', KeyFilter::EQUAL_TO, 'my_username' )
		                      ->orNotEqualTo( 'test', 'world' );

		$query = 'r._measurement == "test_measurement" and r._field == "user" or ' .
		         'r.count >= "1" and r.user == "my_username" or r.test != "world"';

		$this->assertEquals( $keyFilter->__toString(), $query );
	}

	public function testInvalidOperator() {
		$this->expectException( Exception::class );

		KeyFilter::set( '_measurement', '9dkda9e', 'test_measurement' )
		         ->andEqualTo( '_field', 'user' )
		         ->or( '_field', '==', 'field2' )
		         ->andEqualTo( 'user', 'my_username' );
	}
}