public function testPrepareRequest()
{
$client = new Client('http://localhost/');
$payload = $client->prepareRequest('myProcedure');
$this->assertNotEmpty($payload);
$this->assertArrayHasKey('jsonrpc', $payload);
$this->assertEquals('2.0', $payload['jsonrpc']);
$this->assertArrayHasKey('method', $payload);
$this->assertEquals('myProcedure', $payload['method']);
$this->assertArrayHasKey('id', $payload);
$this->assertArrayNotHasKey('params', $payload);
$payload = $client->prepareRequest('myProcedure', array('p1' => 3));
$this->assertNotEmpty($payload);
$this->assertArrayHasKey('jsonrpc', $payload);
$this->assertEquals('2.0', $payload['jsonrpc']);
$this->assertArrayHasKey('method', $payload);
$this->assertEquals('myProcedure', $payload['method']);
$this->assertArrayHasKey('id', $payload);
$this->assertArrayHasKey('params', $payload);
$this->assertEquals(array('p1' => 3), $payload['params']);
}