<?php

namespace Lubiana\Aoc\Y2023\D02;

use PHPUnit\Framework\TestCase;

final class SetTest extends TestCase
{
    /**
     * Test class :: Set
     * Method :: fromStringInput
     * This method takes an input string and parses it to create an instance of the class.
     * The input string is expected to contain an integer and a color separated by a space.
     * Test cases:
     *  Test that the method parses correctly formatted strings.
     *  Test that it gracefully handles strings with excessive whitespace.
     */

    public function testFromStringInput()
    {
        // Test correctly formatted input
        $input = "2 red";
        $set = Set::fromStringInput($input);
        $this->assertInstanceOf(Set::class, $set);
        $this->assertEquals(2, $set->amount);
        $this->assertEquals('red', $set->color);

        // Test input with extra whitespace
        $input = "   3 blue  ";
        $set = Set::fromStringInput($input);
        $this->assertInstanceOf(Set::class, $set);
        $this->assertEquals(3, $set->amount);
        $this->assertEquals('blue', $set->color);
    }

    /**
     * Test case for the fromInputList method of the Set class.
     */
    public function testFromInputList()
    {
        $input = "2 Black,3 White,4 Red";
        $sets = Set::fromInputList($input);

        $this->assertIsArray($sets);

        $this->assertCount(3, $sets);

        $this->assertInstanceOf(Set::class, $sets[0]);
        $this->assertSame(2, $sets[0]->amount);
        $this->assertSame('Black', $sets[0]->color);

        $this->assertInstanceOf(Set::class, $sets[1]);
        $this->assertSame(3, $sets[1]->amount);
        $this->assertSame('White', $sets[1]->color);

        $this->assertInstanceOf(Set::class, $sets[2]);
        $this->assertSame(4, $sets[2]->amount);
        $this->assertSame('Red', $sets[2]->color);
    }
}