From 4469d1cbf8dcfb0a4c25a1cede69890cde9b225c Mon Sep 17 00:00:00 2001
From: Nathan Nichols <natenichols@cox.net>
Date: Thu, 19 Aug 2021 11:08:45 -0500
Subject: [PATCH] refactor: Define PaymentChannelClaim transaction model
 (#1536)

refactor: Define PaymentChannelClaim transaction model (#1536)
---
 src/models/transactions/index.ts              |  2 +-
 .../transactions/paymentChannelClaim.ts       | 46 +++++++++
 src/models/transactions/transaction.ts        |  3 +-
 test/models/paymentChannelClaim.ts            | 98 +++++++++++++++++++
 4 files changed, 147 insertions(+), 2 deletions(-)
 create mode 100644 src/models/transactions/paymentChannelClaim.ts
 create mode 100644 test/models/paymentChannelClaim.ts

diff --git a/src/models/transactions/index.ts b/src/models/transactions/index.ts
index dedfdd87..c8225f8e 100644
--- a/src/models/transactions/index.ts
+++ b/src/models/transactions/index.ts
@@ -12,7 +12,7 @@ export * from './escrowFinish'
 export * from './offerCancel'
 export * from './offerCreate'
 export * from './paymentTransaction'
+export * from './paymentChannelClaim'
 export * from './paymentChannelCreate'
 export * from './signerListSet'
 export * from './trustSet'
-
diff --git a/src/models/transactions/paymentChannelClaim.ts b/src/models/transactions/paymentChannelClaim.ts
new file mode 100644
index 00000000..1d27d148
--- /dev/null
+++ b/src/models/transactions/paymentChannelClaim.ts
@@ -0,0 +1,46 @@
+import { ValidationError } from "../../common/errors";
+import { BaseTransaction, GlobalFlags, verifyBaseTransaction } from "./common";
+
+export interface PaymentChannelClaimFlags extends GlobalFlags {
+    tfRenew?: boolean;
+    tfClose?: boolean;
+}
+
+export interface PaymentChannelClaim extends BaseTransaction {
+    TransactionType: "PaymentChannelClaim";
+    Flags?: number | PaymentChannelClaimFlags
+    Channel: string;
+    Balance?: string;
+    Amount?: string;
+    Signature?: string;
+    PublicKey?: string;
+}
+
+/**
+ * Verify the form and type of an PaymentChannelClaim at runtime.
+ * 
+ * @param tx - An PaymentChannelClaim Transaction
+ * @returns - Void.
+ * @throws - When the PaymentChannelClaim is Malformed.
+ */
+ export function verifyPaymentChannelClaim(tx: PaymentChannelClaim): void {
+    verifyBaseTransaction(tx)
+
+    if (tx.Channel === undefined)
+        throw new ValidationError("PaymentChannelClaim: missing Channel")
+
+    if (typeof tx.Channel !== 'string')
+        throw new ValidationError("PaymentChannelClaim: Channel must be a string")
+
+    if (tx.Balance !== undefined && typeof tx.Balance !== 'string')
+        throw new ValidationError("PaymentChannelClaim: Balance must be a string")
+
+    if (tx.Amount !== undefined && typeof tx.Amount !== 'string')
+        throw new ValidationError("PaymentChannelClaim: Amount must be a string")
+
+    if (tx.Signature !== undefined && typeof tx.Signature !== 'string')
+        throw new ValidationError("PaymentChannelClaim: Signature must be a string")
+
+    if (tx.PublicKey !== undefined && typeof tx.PublicKey !== 'string')
+        throw new ValidationError("PaymentChannelClaim: PublicKey must be a string")
+}
\ No newline at end of file
diff --git a/src/models/transactions/transaction.ts b/src/models/transactions/transaction.ts
index 05d809e5..69097c58 100644
--- a/src/models/transactions/transaction.ts
+++ b/src/models/transactions/transaction.ts
@@ -11,6 +11,7 @@ import { OfferCancel } from "./offerCancel"
 import { OfferCreate } from "./offerCreate"
 import { PaymentTransaction } from "./paymentTransaction"
 import { PaymentChannelCreate } from "./paymentChannelCreate"
+import { PaymentChannelClaim } from './paymentChannelClaim'
 import { SignerListSet } from "./signerListSet"
 import { TicketCreate } from "./ticketCreate"
 import { TrustSet } from "./trustSet"
@@ -28,7 +29,7 @@ export type Transaction =
      | OfferCancel
      | OfferCreate
      | PaymentTransaction
-//   | PaymentChannelClaim
+     | PaymentChannelClaim
      | PaymentChannelCreate
 //   | PaymentChannelFund
 //   | SetRegularKey
diff --git a/test/models/paymentChannelClaim.ts b/test/models/paymentChannelClaim.ts
new file mode 100644
index 00000000..e3d4e252
--- /dev/null
+++ b/test/models/paymentChannelClaim.ts
@@ -0,0 +1,98 @@
+import { ValidationError } from 'xrpl-local/common/errors'
+import { verifyPaymentChannelClaim } from './../../src/models/transactions/paymentChannelClaim'
+import { assert } from 'chai'
+
+
+/**
+ * PaymentChannelClaim Transaction Verification Testing
+ *
+ * Providing runtime verification testing for each specific transaction type
+ */
+describe('PaymentChannelClaim Transaction Verification', function () {
+    let channel
+
+    beforeEach(() => {
+        channel = {
+            "Account": "r...",
+            "TransactionType": "PaymentChannelClaim",
+            "Channel": "C1AE6DDDEEC05CF2978C0BAD6FE302948E9533691DC749DCDD3B9E5992CA6198",
+            "Balance": "1000000",
+            "Amount": "1000000",
+            "Signature": "30440220718D264EF05CAED7C781FF6DE298DCAC68D002562C9BF3A07C1E721B420C0DAB02203A5A4779EF4D2CCC7BC3EF886676D803A9981B928D3B8ACA483B80ECA3CD7B9B",
+            "PublicKey": "32D2471DB72B27E3310F355BB33E339BF26F8392D5A93D3BC0FC3B566612DA0F0A"
+        }
+    })
+
+    it (`verifies valid PaymentChannelClaim`, () => {
+        assert.doesNotThrow(() => verifyPaymentChannelClaim(channel))
+    })
+
+    it (`verifies valid PaymentChannelClaim w/o optional`, () => {
+        delete channel.Balance
+        delete channel.Amount
+        delete channel.Signature
+        delete channel.PublicKey
+        
+        assert.doesNotThrow(() => verifyPaymentChannelClaim(channel))
+    })
+
+    it (`throws w/ missing Channel`, () => {
+        delete channel.Channel
+        
+        assert.throws(
+            () => verifyPaymentChannelClaim(channel),
+            ValidationError,
+            "PaymentChannelClaim: missing Channel"
+        )
+    })
+
+    it (`throws w/ invalid Channel`, () => {
+        channel.Channel = 100
+        
+        assert.throws(
+            () => verifyPaymentChannelClaim(channel),
+            ValidationError,
+            "PaymentChannelClaim: Channel must be a string"
+        )
+    })
+
+    it (`throws w/ invalid Balance`, () => {
+        channel.Balance = 100
+        
+        assert.throws(
+            () => verifyPaymentChannelClaim(channel),
+            ValidationError,
+            "PaymentChannelClaim: Balance must be a string"
+        )
+    })
+
+    it (`throws w/ invalid Amount`, () => {
+        channel.Amount = 1000
+        
+        assert.throws(
+            () => verifyPaymentChannelClaim(channel),
+            ValidationError,
+            "PaymentChannelClaim: Amount must be a string"
+        )
+    })
+
+    it (`throws w/ invalid Signature`, () => {
+        channel.Signature = 1000
+        
+        assert.throws(
+            () => verifyPaymentChannelClaim(channel),
+            ValidationError,
+            "PaymentChannelClaim: Signature must be a string"
+        )
+    })
+
+    it (`throws w/ invalid PublicKey`, () => {
+        channel.PublicKey = ["100000"]
+        
+        assert.throws(
+            () => verifyPaymentChannelClaim(channel),
+            ValidationError,
+            "PaymentChannelClaim: PublicKey must be a string"
+        )
+    })
+})
\ No newline at end of file