UnitTestCaseTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests;


/**
 * Tests for the UnitTestCase class.
 *
 * @group Tests
 */
class UnitTestCaseTest extends UnitTestCase {
    
    /**
     * Tests the dump() function in a test run in the same process.
     */
    public function testVarDumpSameProcess() : void {
        // Append the stream capturer to the STDERR stream, so that we can test the
        // dump() output and also prevent it from actually outputting in this
        // particular test.
        stream_filter_register("capture", StreamCapturer::class);
        stream_filter_append(STDERR, "capture");
        // Dump some variables.
        $object = (object) [
            'foo' => 'bar',
        ];
        dump($object);
        dump('banana');
        $this->assertStringContainsString('bar', StreamCapturer::$cache);
        $this->assertStringContainsString('banana', StreamCapturer::$cache);
    }
    
    /**
     * Tests the dump() function in a test run in a separate process.
     *
     * @runInSeparateProcess
     */
    public function testVarDumpSeparateProcess() : void {
        // Append the stream capturer to the STDERR stream, so that we can test the
        // dump() output and also prevent it from actually outputting in this
        // particular test.
        stream_filter_register("capture", StreamCapturer::class);
        stream_filter_append(STDERR, "capture");
        // Dump some variables.
        $object = (object) [
            'foo' => 'bar',
        ];
        dump($object);
        dump('banana');
        $this->assertStringContainsString('bar', StreamCapturer::$cache);
        $this->assertStringContainsString('banana', StreamCapturer::$cache);
    }

}