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screamAt example

$this->setDefaultLoggers($handler);
            if (\is_array($this->levels)) {
                $levels = 0;
                foreach ($this->levels as $type => $log) {
                    $levels |= $type;
                }
            } else {
                $levels = $this->levels;
            }

            if ($this->scream) {
                $handler->screamAt($levels);
            }
            if ($this->scope) {
                $handler->scopeAt($levels & ~\E_USER_DEPRECATED & ~\E_DEPRECATED);
            } else {
                $handler->scopeAt(0, true);
            }
            $this->logger = $this->deprecationLogger = $this->levels = null;
        }
        if (null !== $this->throwAt) {
            $handler->throwAt($this->throwAt, true);
        }
    }

finally {
            restore_error_handler();
            restore_exception_handler();
        }
    }

    public function testErrorGetLast()
    {
        $logger = $this->createMock(LoggerInterface::class);
        $handler = ErrorHandler::register();
        $handler->setDefaultLogger($logger);
        $handler->screamAt(\E_ALL);

        try {
            @trigger_error('Hello', \E_USER_WARNING);
            $expected = [
                'type' => \E_USER_WARNING,
                'message' => 'Hello',
                'file' => __FILE__,
                'line' => __LINE__ - 5,
            ];
            $this->assertSame($expected, error_get_last());
        } finally {