<?php

namespace Tests\Unit\Helpers;

use App\Helpers\Price;
use PHPUnit\Framework\TestCase;

class PriceHelperTest extends TestCase
{
    public function test_format_adds_currency_symbol(): void
    {
        $result = Price::format(100.00);

        $this->assertStringContainsString('₽', $result);
    }

    public function test_format_shows_two_decimal_places(): void
    {
        $result = Price::format(100);

        $this->assertStringContainsString('.00', $result);
    }

    public function test_format_handles_decimal_prices(): void
    {
        $result = Price::format(123.45);

        $this->assertStringContainsString('123.45', $result);
    }

    public function test_format_uses_nbsp_as_thousands_separator(): void
    {
        $result = Price::format(1234567.89);

        // &nbsp; is used as thousands separator
        $this->assertStringContainsString('&nbsp;', $result);
        $this->assertStringContainsString('1', $result);
        $this->assertStringContainsString('234', $result);
        $this->assertStringContainsString('567', $result);
        $this->assertStringContainsString('.89', $result);
    }

    public function test_format_handles_zero(): void
    {
        $result = Price::format(0);

        $this->assertEquals('0.00₽', $result);
    }

    public function test_format_handles_small_amounts(): void
    {
        $result = Price::format(0.01);

        $this->assertEquals('0.01₽', $result);
    }

    public function test_format_handles_large_amounts(): void
    {
        $result = Price::format(999999999.99);

        $this->assertStringContainsString('₽', $result);
        $this->assertStringContainsString('.99', $result);
    }
}