public function testUsesProxyEnvironmentVariables()
{
$http = isset($_SERVER['HTTP_PROXY']) ? $_SERVER['HTTP_PROXY'] : null;
$https = isset($_SERVER['HTTPS_PROXY']) ? $_SERVER['HTTPS_PROXY'] : null;
unset($_SERVER['HTTP_PROXY']);
unset($_SERVER['HTTPS_PROXY']);
$client = new puzzle_Client();
$this->assertNull($client->getDefaultOption('proxy'));
$_SERVER['HTTP_PROXY'] = '127.0.0.1';
$client = new puzzle_Client();
$this->assertEquals(array('http' => '127.0.0.1'), $client->getDefaultOption('proxy'));
$_SERVER['HTTPS_PROXY'] = '127.0.0.2';
$client = new puzzle_Client();
$this->assertEquals(array('http' => '127.0.0.1', 'https' => '127.0.0.2'), $client->getDefaultOption('proxy'));
$_SERVER['HTTP_PROXY'] = $http;
$_SERVER['HTTPS_PROXY'] = $https;
}
