refactor: define typescript type for AccountSet transaction (#1515)

* define typescript type for AccountSet transaction

test/models/accountSet.ts

@@ -0,0 +1,110 @@
+import { ValidationError } from 'xrpl-local/common/errors'
+import { verifyAccountSet } from './../../src/models/transactions/accountSet'
+import { assert } from 'chai'
+
+/**
+ * AccountSet Transaction Verification Testing
+ *
+ * Providing runtime verification testing for each specific transaction type
+ */
+describe('AccountSet Transaction Verification', function () {
+
+    let account 
+
+    beforeEach(() => {
+        account = {
+            TransactionType : "AccountSet",
+            Account : "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
+            Fee : "12",
+            Sequence : 5,
+            Domain : "6578616D706C652E636F6D",
+            SetFlag : 5,
+            MessageKey : "03AB40A0490F9B7ED8DF29D246BF2D6269820A0EE7742ACDD457BEA7C7D0931EDB"
+        } as any
+    })
+
+    it (`verifies valid AccountSet`, () => {
+        assert.doesNotThrow(() => verifyAccountSet(account))
+    })
+
+    it (`throws w/ invalid SetFlag (out of range)`, () => {
+        account.SetFlag = 12
+
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid SetFlag"
+        )
+    })
+
+    it (`throws w/ invalid SetFlag (incorrect type)`, () => {
+        account.SetFlag = 'abc'
+        
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid SetFlag"
+        )
+    })
+
+    it (`throws w/ invalid ClearFlag`, () => {
+        account.ClearFlag = 12
+
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid ClearFlag"
+        )
+    })
+
+    it (`throws w/ invalid Domain`, () => {
+        account.Domain = 6578616
+
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid Domain"
+        )
+    })
+
+    it (`throws w/ invalid EmailHash`, () => {
+        account.EmailHash = 657861645678909876543456789876543
+
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid EmailHash"
+        )
+    })
+
+    it (`throws w/ invalid MessageKey`, () => {
+        account.MessageKey = 65786165678908765456789567890678
+
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid MessageKey"
+        )
+    })
+
+    it (`throws w/ invalid TransferRate`, () => {
+        account.TransferRate = "1000000001"
+
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid TransferRate"
+        )
+    })
+
+    it (`throws w/ invalid TickSize`, () => {
+        account.TickSize = 20
+
+        assert.throws(
+            () => verifyAccountSet(account),
+            ValidationError,
+            "AccountSet: invalid TickSize"
+        )
+    })
+
+})