CHANGED Account.spec adding the hexa case for signData

Author: Aleix Morgadas

test/model/account/Account.spec.ts

@@ -46,14 +46,27 @@ describe('Account', () => {
         expect(account.address).to.not.be.equal(undefined);
     });
 
-    it('signData', () => {
-        const account = Account.createFromPrivateKey(
-            'AB860ED1FE7C91C02F79C02225DAC708D7BD13369877C1F59E678CC587658C47',
-            NetworkType.MIJIN_TEST,
-        );
-        const publicAccount = account.publicAccount;
-        const signed = account.signData('catapult rocks!');
-        expect(publicAccount.verifySignature('catapult rocks!', signed))
-            .to.be.true;
+    describe('signData', () => {
+        it('utf-8', () => {
+            const account = Account.createFromPrivateKey(
+                'AB860ED1FE7C91C02F79C02225DAC708D7BD13369877C1F59E678CC587658C47',
+                NetworkType.MIJIN_TEST,
+            );
+            const publicAccount = account.publicAccount;
+            const signed = account.signData('catapult rocks!');
+            expect(publicAccount.verifySignature('catapult rocks!', signed))
+                .to.be.true;
+        });
+
+        it('hexa', () => {
+            const account = Account.createFromPrivateKey(
+                'AB860ED1FE7C91C02F79C02225DAC708D7BD13369877C1F59E678CC587658C47',
+                NetworkType.MIJIN_TEST,
+            );
+            const publicAccount = account.publicAccount;
+            const signed = account.signData('0xAA');
+            expect(publicAccount.verifySignature('0xAA', signed))
+                .to.be.true;
+        });
     });
 });