Test case for #556

Author: dcodeIO

package.json

@@ -1,6 +1,6 @@
 {
   "name": "protobufjs",
-  "version": "6.1.1",
+  "version": "6.1.2",
   "description": "Protocol Buffers for JavaScript (& TypeScript).",
   "author": "Daniel Wirtz <dcode+protobufjs@dcode.io>",
   "license": "Apache-2.0",

tests/tag.js

@@ -0,0 +1,35 @@
+var tape = require("tape");
+
+var protobuf = require("..");
+
+var root = protobuf.Root.fromJSON({
+    nested: {
+        Message: {
+            fields: {
+                val: {
+                    type: "uint32",
+                    id: 0x1FFFFFFF
+                }
+            }
+        }
+    }
+});
+
+tape.test("long tags", function(test) {
+
+    var Message = root.lookup("Message");
+    var message = { val: 1 };
+    var buf = Message.encode(message).finish();
+    
+    test.equal(buf[0], 0xF8, "should write F8 (78)");
+    test.equal(buf[1], 0xff, "should write FF (7F)");
+    test.equal(buf[2], 0xff, "should write FF (7F)");
+    test.equal(buf[3], 0xff, "should write FF (7F)");
+    test.equal(buf[4], 0b1111, "should write 1111b");
+    test.equal(buf[5], 1, "should write value 1");
+
+    var comp = Message.decode(buf);
+    test.deepEqual(comp, message, "should decode back the original data");
+
+    test.end();
+});