fix conformance test for text format

conformance/conformance_nodejs.js

@@ -76,6 +76,10 @@ function doTest(request) {
         response.setSkipped("JSON not supported.");
         return response;
 
+	  case conformance.ConformanceRequest.PayloadCase.TEXT_PAYLOAD:
+	    response.setSkipped("Text format not supported.");
+        return response;
+		
       case conformance.ConformanceRequest.PayloadCase.PAYLOAD_NOT_SET:
         response.setRuntimeError("Request didn't have payload");
         return response;

conformance/conformance_php.php

@@ -57,6 +57,9 @@ function doTest($request)
           $response->setParseError($e->getMessage());
           return $response;
       }
+	} elseif ($request->getPayload() == "text_payload") {
+		$response->setSkipped("PHP doesn't support text format yet");
+        return $response;
 	} else {
       trigger_error("Request didn't have payload.", E_USER_ERROR);
     }

conformance/conformance_ruby.rb

@@ -67,6 +67,12 @@ def do_test(request)
         return response
       end
 	
+	when :text_payload
+	  begin
+		response.skipped = "Ruby doesn't support proto2"
+        return response   
+	  end
+
     when nil
       fail "Request didn't have payload"
     end

csharp/src/Google.Protobuf.Conformance/Program.cs

@@ -109,6 +109,10 @@ namespace Google.Protobuf.Conformance
                         }
                         break;
                     }
+					case ConformanceRequest.PayloadOneofCase.TextPayload:
+					{
+						return new ConformanceResponse { Skipped = "CSharp doesn't support text format" };
+					}
                     default:
                         throw new Exception("Unsupported request payload: " + request.PayloadCase);
                 }