Tickets support (#110)

* feat(tickets): add TicketCount definition

* feat(tickets): add TicketSequence definition

* fix(tests): unit tests

packages/ripple-binary-codec/src/enums/definitions.json

@@ -444,6 +444,26 @@
         "type": "UInt32"
       }
     ],
+    [
+      "TicketCount",
+      {
+        "nth": 41,
+        "isVLEncoded": false,
+        "isSerialized": true,
+        "isSigningField": true,
+        "type": "UInt32"
+      }
+    ],
+    [
+      "TicketSequence",
+      {
+        "nth": 42,
+        "isVLEncoded": false,
+        "isSerialized": true,
+        "isSigningField": true,
+        "type": "UInt32"
+      }
+    ],
     [
       "IndexNext",
       {

packages/ripple-binary-codec/test/binary-serializer.test.js

@@ -51,6 +51,13 @@ const PaymentChannel = {
   },
 };
 
+const Ticket = {
+  create: {
+    tx: require("./fixtures/ticket-create-tx.json"),
+    binary: require("./fixtures/ticket-create-binary.json"),
+  },
+};
+
 let json_undefined = {
   TakerPays: "223174650",
   Account: "rPk2dXr27rMw9G5Ej9ad2Tt7RJzGy8ycBp",
@@ -236,6 +243,12 @@ function omitUndefinedTest() {
   });
 }
 
+function ticketTest() {
+  test("can serialize TicketCreate", () => {
+    expect(encode(Ticket.create.tx)).toEqual(Ticket.create.binary);
+  });
+}
+
 describe("Binary Serialization", function () {
   describe("nestedObjectTests", () => nestedObjectTests());
   describe("BytesList", () => bytesListTest());
@@ -246,4 +259,5 @@ describe("Binary Serialization", function () {
   describe("PaymentChannel", () => PaymentChannelTest());
   describe("NegativeUNLTest", () => NegativeUNLTest());
   describe("OmitUndefined", () => omitUndefinedTest());
+  describe("TicketTest", () => ticketTest());
 });

packages/ripple-binary-codec/test/fixtures/ticket-create-binary.json

@@ -0,0 +1 @@
+"12000A240000000E2029000000016840000000000027108114D5024F157225CA9F8F4C73094D61A8FDD746E0DB"

packages/ripple-binary-codec/test/fixtures/ticket-create-tx.json

@@ -0,0 +1,7 @@
+{
+  "TransactionType": "TicketCreate",
+  "TicketCount": 1,
+  "Account": "rLRH6HciuPv5rQBNFBYH1iPPAuVFERtNXZ",
+  "Sequence": 14,
+  "Fee": "10000"
+}

packages/ripple-binary-codec/test/tx-encode-decode.test.js

@@ -33,6 +33,23 @@ describe("encoding and decoding tx_json", function () {
     const decoded = decode(encoded);
     expect(my_tx).toEqual(decoded);
   });
+  test("can encode tx_json with TicketCount", function () {
+    const my_tx = Object.assign({}, tx_json, {
+      TicketCount: 2,
+    });
+    const encoded = encode(my_tx);
+    const decoded = decode(encoded);
+    expect(my_tx).toEqual(decoded);
+  });
+  test("can encode tx_json with TicketSequence", function () {
+    const my_tx = Object.assign({}, tx_json, {
+      Sequence: 0,
+      TicketSequence: 2,
+    });
+    const encoded = encode(my_tx);
+    const decoded = decode(encoded);
+    expect(my_tx).toEqual(decoded);
+  });
   test("throws when Amount is invalid", function () {
     const my_tx = Object.assign({}, tx_json, {
       Amount: "1000.001",