<?php



/**

 * LICENSE: Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 * 

 * PHP version 5

 *

 * @category  Microsoft

 * @package   Tests\Unit\WindowsAzure\Common

 * @author    Azure PHP SDK <azurephpsdk@microsoft.com>

 * @copyright 2012 Microsoft Corporation

 * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0

 * @link      https://github.com/windowsazure/azure-sdk-for-php

 */



namespace Tests\Unit\WindowsAzure\Common;

use WindowsAzure\Common\CloudConfigurationManager;

use WindowsAzure\Common\Internal\ConnectionStringSource;



/**

 * Unit tests for class CloudConfigurationManager

 *

 * @category  Microsoft

 * @package   Tests\Unit\WindowsAzure\Common

 * @author    Azure PHP SDK <azurephpsdk@microsoft.com>

 * @copyright 2012 Microsoft Corporation

 * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0

 * @version   Release: @package_version@

 * @link      https://github.com/windowsazure/azure-sdk-for-php

 */

class CloudConfigurationManagerTest extends \PHPUnit_Framework_TestCase

{

    private $_key = 'my_connection_string';

    private $_value = 'connection string value';

    

    public function setUp()

    {

        $isInitialized = new \ReflectionProperty('WindowsAzure\Common\CloudConfigurationManager', '_isInitialized');

        $isInitialized->setAccessible(true);

        $isInitialized->setValue(false);

        

        $sources = new \ReflectionProperty('WindowsAzure\Common\CloudConfigurationManager', '_sources');

        $sources->setAccessible(true);

        $sources->setValue(array());

    }

    

    /**

     * @covers WindowsAzure\Common\CloudConfigurationManager::getConnectionString

     * @covers WindowsAzure\Common\CloudConfigurationManager::_init

     */

    public function testGetConnectionStringFromEnvironmentVariable()

    {

        // Setup

        putenv("$this->_key=$this->_value");

        

        // Test

        $actual = CloudConfigurationManager::getConnectionString($this->_key);

        

        // Assert

        $this->assertEquals($this->_value, $actual);

        

        // Clean

        putenv($this->_key);

    }

    

    /**

     * @covers WindowsAzure\Common\CloudConfigurationManager::getConnectionString

     */

    public function testGetConnectionStringDoesNotExist()

    {        

        // Test

        $actual = CloudConfigurationManager::getConnectionString('does not exist');

        

        // Assert

        $this->assertEmpty($actual);

    }

    

    /**

     * @covers WindowsAzure\Common\CloudConfigurationManager::registerSource

     * @covers WindowsAzure\Common\CloudConfigurationManager::_init

     */

    public function testRegisterSource()

    {

        // Setup

        $expectedKey = $this->_key;

        $expectedValue = $this->_value . "extravalue";

        

        // Test

        CloudConfigurationManager::registerSource(

            'my_source',

            function ($key) use ($expectedKey, $expectedValue)

            {

                if ($key == $expectedKey) {

                    return $expectedValue;

                }

            }

        );

        

        // Assert

        $actual = CloudConfigurationManager::getConnectionString($expectedKey);

        $this->assertEquals($expectedValue, $actual);

    }

    

    /**

     * @covers WindowsAzure\Common\CloudConfigurationManager::registerSource

     * @covers WindowsAzure\Common\CloudConfigurationManager::_init

     */

    public function testRegisterSourceWithPrepend()

    {

        // Setup

        $expectedKey = $this->_key;

        $expectedValue = $this->_value . "extravalue2";

        putenv("$this->_key=wrongvalue");



        // Test

        CloudConfigurationManager::registerSource(

            'my_source',

            function ($key) use ($expectedKey, $expectedValue)

            {

                if ($key == $expectedKey) {

                    return $expectedValue;

                }

            },

            true

        );

        

        // Assert

        $actual = CloudConfigurationManager::getConnectionString($expectedKey);

        $this->assertEquals($expectedValue, $actual);

        

        // Clean

        putenv($this->_key);

    }

    

    /**

     * @covers WindowsAzure\Common\CloudConfigurationManager::unregisterSource

     * @covers WindowsAzure\Common\CloudConfigurationManager::_init

     */

    public function testUnRegisterSource()

    {

        // Setup

        $expectedKey = $this->_key;

        $expectedValue = $this->_value . "extravalue3";

        $name = 'my_source';

        CloudConfigurationManager::registerSource(

            $name,

            function ($key) use ($expectedKey, $expectedValue)

            {

                if ($key == $expectedKey) {

                    return $expectedValue;

                }

            }

        );

        

        // Test

        $callback = CloudConfigurationManager::unregisterSource($name);

        

        // Assert

        $actual = CloudConfigurationManager::getConnectionString($expectedKey);

        $this->assertEmpty($actual);

        $this->assertNotNull($callback);

    }

    

    /**

     * @covers WindowsAzure\Common\CloudConfigurationManager::registerSource

     * @covers WindowsAzure\Common\CloudConfigurationManager::_init

     */

    public function testRegisterSourceWithDefaultSource()

    {

        // Setup

        $expectedKey = $this->_key;

        $expectedValue = $this->_value . "extravalue5";

        CloudConfigurationManager::unregisterSource(ConnectionStringSource::ENVIRONMENT_SOURCE);

        putenv("$expectedKey=$expectedValue");

        

        // Test

        CloudConfigurationManager::registerSource(ConnectionStringSource::ENVIRONMENT_SOURCE);

        

        // Assert

        $actual = CloudConfigurationManager::getConnectionString($expectedKey);

        $this->assertEquals($expectedValue, $actual);

        

        // Clean

        putenv($expectedKey);

    }

    

    /**

     * @covers WindowsAzure\Common\CloudConfigurationManager::unregisterSource

     * @covers WindowsAzure\Common\CloudConfigurationManager::_init

     */

    public function testUnRegisterSourceWithDefaultSource()

    {

        // Setup

        $expectedKey = $this->_key;

        $expectedValue = $this->_value . "extravalue4";

        $name = 'my_source';

        CloudConfigurationManager::registerSource(

            $name,

            function ($key) use ($expectedKey, $expectedValue)

            {

                if ($key == $expectedKey) {

                    return $expectedValue;

                }

            }

        );

        

        // Test

        $callback = CloudConfigurationManager::unregisterSource(ConnectionStringSource::ENVIRONMENT_SOURCE);

        

        // Assert

        $actual = CloudConfigurationManager::getConnectionString($expectedKey);

        $this->assertEquals($expectedValue, $actual);

        $this->assertNotNull($callback);

    }

}