phpunit-assertions.php

<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

class AssertionsTest extends TestCase
{
  public function testAssertJsonStringEqualsJsonString()
    {
        $this->assertJsonStringEqualsJsonString('{"message": "ok"}', json_encode(["message" => "ok"]), 'Check message ok json');
    }

    public function testRegex()
    {
        $this->assertRegExp('/Exception 40\d/', 'Exception 501', 'Check if it is exception 40x');
    }

    public function testAssertStringContainsString()
    {
        $this->assertStringContainsString('Error', 'Error id is reqired, quote is required', 'Check if word Error is present');
    }

    public function testAssetEqualsWithDelta()
    {
        $this->assertEqualsWithDelta(34.3, 34.1, 0.5, '0.5 degree variance in temprature is allwoed');
    }

    public function testAssertArrayHasKey()
    {
        $exchangeRates = ['usd' => 0.77, 'euro' => 0.63];

        $this->assertArrayHasKey('usd', $exchangeRates, 'Check if USD is available');
        $this->assertEquals(0.77, $exchangeRates['usd'], 'Test if USD rate is 0.77');
    }
}