<?php

namespace Filter;

use PHPUnit\Framework\TestCase;
use TypeError;

/**
 * @covers \Filter\FilterParser
 */
class FilterParserTest extends TestCase
{
    private FilterParser $parser;

    protected function setUp(): void
    {
        $this->parser = new FilterParser();
    }

    public function testCreatesSpecificFilters(): void
    {
        self::assertContainsOnlyInstancesOf(SpecificFilter::class, [
            $this->parser->parse('title=poo'),
            $this->parser->parse('1='),
            $this->parser->parse('filepath=some_thing_else'),
        ]);

        self::assertNotInstanceOf(SpecificFilter::class, $this->parser->parse('='));
    }

    public function testCreatesGenericFilters(): void
    {
        // Basically, anything that does not match the pattern .+=.*
        self::assertContainsOnlyInstancesOf(GenericFilter::class, [
            $this->parser->parse('scoobypoo'),
            $this->parser->parse('324234'),
            $this->parser->parse(324234),
            $this->parser->parse('baz'),
        ]);
    }

    public function testDoesNotTakeNull(): void
    {
        $this->expectException(TypeError::class);
        $this->parser->parse(null);
    }
}