invoiceninja/tests/Unit/CurrencyApiTest.php

<?php

namespace Tests\Unit;

use App\Libraries\Currency\Conversion\CurrencyApi;
use Illuminate\Support\Carbon;
use Tests\TestCase;

/**
 * @test
 * @covers  App\Libraries\Currency\Conversion\CurrencyApi
 */
class CurrencyApiTest extends TestCase
{
    public function setUp() :void
    {

        parent::setUp();
    
    }

    public function testCurrencyConversionWorking()
    {

    	$converter = new CurrencyApi();

    	$converted_amount = $converter->convert(100,1,2);

    	$this->assertIsFloat($converted_amount);

    }


	public function testExchangeRate()
	{
		
    	$converter = new CurrencyApi();

		$exchange_rate =  $converter->exchangeRate(1, 2);

    	$this->assertIsNumeric($exchange_rate);

	}


	public function testExchangeRateWithDate()
	{
		$date = Carbon::parse('2020-03-08');

    	$converter = new CurrencyApi();

		$exchange_rate =  $converter->exchangeRate(1, 2, $date);

    	$this->assertIsNumeric($exchange_rate);

	}
}