function UnitTestCaseTest::testVarDumpSeparateProcess

Tests the dump() function in a test run in a separate process.

@runInSeparateProcess

File

core/tests/Drupal/Tests/UnitTestCaseTest.php, line 40

Class

UnitTestCaseTest

Tests for the UnitTestCase class.

Namespace

Code

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);
}