refactor: define models for EscrowCancel (#1511)

refactor: define models for EscrowCancel (#1511)

test/models/escrowCancel.ts

@@ -0,0 +1,65 @@
+import { verifyEscrowCancel } from './../../src/models/transactions/escrowCancel'
+import { assert } from 'chai'
+import { ValidationError } from '../../src/common/errors'
+
+/**
+ * Transaction Verification Testing
+ *
+ * Providing runtime verification testing for each specific transaction type
+ */
+describe('Transaction Verification', function () {
+    let cancel
+
+    beforeEach(() => {
+        cancel = {
+            TransactionType: "EscrowCancel",
+            Account: "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
+            Owner: "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
+            OfferSequence: 7,
+        }
+    })
+
+    it (`Valid EscrowCancel`, () => {
+        assert.doesNotThrow(() => verifyEscrowCancel(cancel))
+    })
+
+    it (`Invalid EscrowCancel missing owner`, () => {
+       delete cancel.Owner
+
+        assert.throws(
+            () => verifyEscrowCancel(cancel),
+            ValidationError,
+            'EscrowCancel: missing Owner'
+        )
+    })
+    
+    it (`Invalid EscrowCancel missing offerSequence`, () => {
+        delete cancel.OfferSequence
+
+        assert.throws(
+            () => verifyEscrowCancel(cancel),
+            ValidationError,
+            'EscrowCancel: missing OfferSequence'
+        )
+    })
+
+    it (`Invalid OfferSequence`, () => {
+        cancel.Owner = 10
+
+        assert.throws(
+            () => verifyEscrowCancel(cancel),
+            ValidationError,
+            'EscrowCancel: Owner must be a string'
+        )
+    })
+
+    it (`Invalid owner`, () => {
+       cancel.OfferSequence = "10"
+
+        assert.throws(
+            () => verifyEscrowCancel(cancel),
+            ValidationError,
+            'EscrowCancel: OfferSequence must be a number'
+        )
+    })
+})