refactor: Define PaymentChannelFund transaction model (#1535)

refactor: Define PaymentChannelFund transaction model (#1535)

test/models/paymentChannelFund.ts

@@ -0,0 +1,83 @@
+import { ValidationError } from 'xrpl-local/common/errors'
+import { verifyPaymentChannelFund } from './../../src/models/transactions/paymentChannelFund'
+import { assert } from 'chai'
+
+/**
+ * PaymentChannelFund Transaction Verification Testing
+ *
+ * Providing runtime verification testing for each specific transaction type
+ */
+describe('PaymentChannelFund Transaction Verification', function () {
+    let channel
+
+    beforeEach(() => {
+        channel = {
+            "Account": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
+            "TransactionType": "PaymentChannelFund",
+            "Channel": "C1AE6DDDEEC05CF2978C0BAD6FE302948E9533691DC749DCDD3B9E5992CA6198",
+            "Amount": "200000",
+            "Expiration": 543171558
+        }
+    })
+    
+    it (`verifies valid PaymentChannelFund`, () => {
+        assert.doesNotThrow(() => verifyPaymentChannelFund(channel))
+    })
+
+    it (`verifies valid PaymentChannelFund w/o optional`, () => {
+        delete channel.Expiration
+        
+        assert.doesNotThrow(() => verifyPaymentChannelFund(channel))
+    })
+
+    it (`throws w/ missing Amount`, () => {
+        delete channel.Amount
+
+        assert.throws(
+            () => verifyPaymentChannelFund(channel),
+            ValidationError,
+            "PaymentChannelFund: missing Amount"
+        )
+    })
+
+    it (`throws w/ missing Channel`, () => {
+        delete channel.Channel
+
+        assert.throws(
+            () => verifyPaymentChannelFund(channel),
+            ValidationError,
+            "PaymentChannelFund: missing Channel"
+        )
+    })
+
+    it (`throws w/ invalid Amount`, () => {
+        channel.Amount = 100
+
+        assert.throws(
+            () => verifyPaymentChannelFund(channel),
+            ValidationError,
+            "PaymentChannelFund: Amount must be a string"
+        )
+    })
+
+    it (`throws w/ invalid Channel`, () => {
+        channel.Channel = 1000
+
+        assert.throws(
+            () => verifyPaymentChannelFund(channel),
+            ValidationError,
+            "PaymentChannelFund: Channel must be a string"
+        )
+    })
+
+    it (`throws w/ invalid Expiration`, () => {
+        channel.Expiration = "1000"
+        
+        assert.throws(
+            () => verifyPaymentChannelFund(channel),
+            ValidationError,
+            "PaymentChannelFund: Expiration must be a number"
+        )
+    })
+
+})