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Filename : NewRelicHandlerTest.php
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<?php

/*
 * This file is part of the Monolog package.
 *
 * (c) Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Monolog\Handler;

use Monolog\Formatter\LineFormatter;
use Monolog\TestCase;
use Monolog\Logger;

class NewRelicHandlerTest extends TestCase
{
    public static $appname;
    public static $customParameters;
    public static $transactionName;

    public function setUp()
    {
        self::$appname = null;
        self::$customParameters = array();
        self::$transactionName = null;
    }

    /**
     * @expectedException Monolog\Handler\MissingExtensionException
     */
    public function testThehandlerThrowsAnExceptionIfTheNRExtensionIsNotLoaded()
    {
        $handler = new StubNewRelicHandlerWithoutExtension();
        $handler->handle($this->getRecord(Logger::ERROR));
    }

    public function testThehandlerCanHandleTheRecord()
    {
        $handler = new StubNewRelicHandler();
        $handler->handle($this->getRecord(Logger::ERROR));
    }

    public function testThehandlerCanAddContextParamsToTheNewRelicTrace()
    {
        $handler = new StubNewRelicHandler();
        $handler->handle($this->getRecord(Logger::ERROR, 'log message', array('a' => 'b')));
        $this->assertEquals(array('context_a' => 'b'), self::$customParameters);
    }

    public function testThehandlerCanAddExplodedContextParamsToTheNewRelicTrace()
    {
        $handler = new StubNewRelicHandler(Logger::ERROR, true, self::$appname, true);
        $handler->handle($this->getRecord(
            Logger::ERROR,
            'log message',
            array('a' => array('key1' => 'value1', 'key2' => 'value2'))
        ));
        $this->assertEquals(
            array('context_a_key1' => 'value1', 'context_a_key2' => 'value2'),
            self::$customParameters
        );
    }

    public function testThehandlerCanAddExtraParamsToTheNewRelicTrace()
    {
        $record = $this->getRecord(Logger::ERROR, 'log message');
        $record['extra'] = array('c' => 'd');

        $handler = new StubNewRelicHandler();
        $handler->handle($record);

        $this->assertEquals(array('extra_c' => 'd'), self::$customParameters);
    }

    public function testThehandlerCanAddExplodedExtraParamsToTheNewRelicTrace()
    {
        $record = $this->getRecord(Logger::ERROR, 'log message');
        $record['extra'] = array('c' => array('key1' => 'value1', 'key2' => 'value2'));

        $handler = new StubNewRelicHandler(Logger::ERROR, true, self::$appname, true);
        $handler->handle($record);

        $this->assertEquals(
            array('extra_c_key1' => 'value1', 'extra_c_key2' => 'value2'),
            self::$customParameters
        );
    }

    public function testThehandlerCanAddExtraContextAndParamsToTheNewRelicTrace()
    {
        $record = $this->getRecord(Logger::ERROR, 'log message', array('a' => 'b'));
        $record['extra'] = array('c' => 'd');

        $handler = new StubNewRelicHandler();
        $handler->handle($record);

        $expected = array(
            'context_a' => 'b',
            'extra_c' => 'd',
        );

        $this->assertEquals($expected, self::$customParameters);
    }

    public function testThehandlerCanHandleTheRecordsFormattedUsingTheLineFormatter()
    {
        $handler = new StubNewRelicHandler();
        $handler->setFormatter(new LineFormatter());
        $handler->handle($this->getRecord(Logger::ERROR));
    }

    public function testTheAppNameIsNullByDefault()
    {
        $handler = new StubNewRelicHandler();
        $handler->handle($this->getRecord(Logger::ERROR, 'log message'));

        $this->assertEquals(null, self::$appname);
    }

    public function testTheAppNameCanBeInjectedFromtheConstructor()
    {
        $handler = new StubNewRelicHandler(Logger::DEBUG, false, 'myAppName');
        $handler->handle($this->getRecord(Logger::ERROR, 'log message'));

        $this->assertEquals('myAppName', self::$appname);
    }

    public function testTheAppNameCanBeOverriddenFromEachLog()
    {
        $handler = new StubNewRelicHandler(Logger::DEBUG, false, 'myAppName');
        $handler->handle($this->getRecord(Logger::ERROR, 'log message', array('appname' => 'logAppName')));

        $this->assertEquals('logAppName', self::$appname);
    }

    public function testTheTransactionNameIsNullByDefault()
    {
        $handler = new StubNewRelicHandler();
        $handler->handle($this->getRecord(Logger::ERROR, 'log message'));

        $this->assertEquals(null, self::$transactionName);
    }

    public function testTheTransactionNameCanBeInjectedFromTheConstructor()
    {
        $handler = new StubNewRelicHandler(Logger::DEBUG, false, null, false, 'myTransaction');
        $handler->handle($this->getRecord(Logger::ERROR, 'log message'));

        $this->assertEquals('myTransaction', self::$transactionName);
    }

    public function testTheTransactionNameCanBeOverriddenFromEachLog()
    {
        $handler = new StubNewRelicHandler(Logger::DEBUG, false, null, false, 'myTransaction');
        $handler->handle($this->getRecord(Logger::ERROR, 'log message', array('transaction_name' => 'logTransactName')));

        $this->assertEquals('logTransactName', self::$transactionName);
    }
}

class StubNewRelicHandlerWithoutExtension extends NewRelicHandler
{
    protected function isNewRelicEnabled()
    {
        return false;
    }
}

class StubNewRelicHandler extends NewRelicHandler
{
    protected function isNewRelicEnabled()
    {
        return true;
    }
}

function newrelic_notice_error()
{
    return true;
}

function newrelic_set_appname($appname)
{
    return NewRelicHandlerTest::$appname = $appname;
}

function newrelic_name_transaction($transactionName)
{
    return NewRelicHandlerTest::$transactionName = $transactionName;
}

function newrelic_add_custom_parameter($key, $value)
{
    NewRelicHandlerTest::$customParameters[$key] = $value;

    return true;
}