<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;

class ExampleTest extends TestCase
{
    /**
     * A basic test example.
     */
    public function test_that_true_is_true(): string
    {
        $this->assertTrue(false);

        return 'first';
    }

    public function test_push_and_pop(): void
    {
        $stack = [];
        $this->assertSame(0, count($stack));

        array_push($stack, 'foo');
        $this->assertSame('foo', $stack[count($stack) - 1]);
        $this->assertSame(1, count($stack));

        $this->assertSame('foo', array_pop($stack));
        $this->assertSame(0, count($stack));
    }

    public function test_deprecation_can_be_expected(): void
    {
        $this->expectDeprecation();

        // Optionally test that the message is equal to a string
        $this->expectDeprecationMessage('foo');

        // Or optionally test that the message matches a regular expression
        $this->expectDeprecationMessageMatches('/foo/');

        \trigger_error('foo', \E_USER_DEPRECATED);
    }
}