public function testSignatureWithAccessSecretIsConsumerAndAccessSecretStringsConcatWithAmp() { $params = array( 'oauth_version' => '1.0', 'oauth_consumer_key' => 'dpf43f3p2l4k3l03', 'oauth_signature_method' => 'PLAINTEXT', 'oauth_timestamp' => '1191242090', 'oauth_nonce' => 'hsu94j3884jdopsl', 'oauth_version' => '1.0' ); $signature = new Signature\Plaintext('1234567890', '0987654321'); $this->assertEquals('1234567890&0987654321', $signature->sign($params)); }