feat: add nonce argument to JettonMaster contructor (#28)

**Changes summary**:
Updated initial parameters of this contract to make possible mint
multiple jettons using single TON wallet. Second argument was added to
contructor. Previously `JettonMaster` constructor takes one argument -
owner address. It means that only one jetton could be minted per owner
address. Now users will set it random or as current UTC timestamp to
avoid contract address collision

contracts/jetton/master.tact

@@ -25,7 +25,7 @@ contract JettonMaster with TEP74JettonMaster, TEP89JettonDiscoverable, Deployabl
     // Is token initialized (to avoid double init)
     deployed: Bool = false;
 
-    init(owner: Address){
+    init(owner: Address, nonce: Int){
         self.owner = owner;
         let init = initOf JettonWallet(myAddress(), myAddress());
         let data = init.data.beginParse();

scripts/deployJettonMaster.ts

@@ -3,7 +3,7 @@ import { JettonMaster } from '../wrappers/JettonMaster';
 import { NetworkProvider } from '@ton/blueprint';
 
 export async function run(provider: NetworkProvider) {
-    const jettonMaster = provider.open(await JettonMaster.fromInit(provider.sender().address!!));
+    const jettonMaster = provider.open(await JettonMaster.fromInit(provider.sender().address!!, 0n));
 
     await jettonMaster.send(
         provider.sender(),

tests/JettonMaster.spec.ts

@@ -32,7 +32,7 @@ describe('JettonMaster', () => {
         deployer = await blockchain.treasury('deployer');
         other = await blockchain.treasury("other");
 
-        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address));
+        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address, 0n));
         jettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, deployer.address));
         otherJettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, other.address));
 
@@ -66,6 +66,14 @@ describe('JettonMaster', () => {
         });
     });
 
+    it('should mint multiple jettons per wallet', async () => {
+        const jettonMasterSameNonce = blockchain.openContract(await JettonMaster.fromInit(deployer.address, 0n));;
+        expect(jettonMasterSameNonce.address).toEqualAddress(jettonMaster.address);
+
+        const jettonMasterDiffNonce = blockchain.openContract(await JettonMaster.fromInit(deployer.address, 1n));;
+        expect(jettonMasterDiffNonce.address).not.toEqualAddress(jettonMaster.address);
+    });
+
     it('should handle big strings', async () => {
         const LONG_JETTON_NAME = JETTON_NAME.repeat(100);
         const LONG_JETTON_DESCRIPTION = JETTON_DESCRIPTION.repeat(20);
@@ -75,7 +83,7 @@ describe('JettonMaster', () => {
         expect(LONG_JETTON_DESCRIPTION.length).toBeGreaterThan(1024);
         expect(LONG_JETTON_SYMBOL.length).toBeGreaterThan(1024);
 
-        const otherJettonMaster = blockchain.openContract(await JettonMaster.fromInit(other.address));
+        const otherJettonMaster = blockchain.openContract(await JettonMaster.fromInit(other.address, 0n));
         await otherJettonMaster.send(
             other.getSender(),
             {

tests/JettonWallet.spec.ts

@@ -24,7 +24,7 @@ describe('JettonMaster', () => {
         deployer = await blockchain.treasury('deployer');
         other = await blockchain.treasury("other");
 
-        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address));
+        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address, 0n));
         jettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, deployer.address));
         otherJettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, other.address));
 

tests/MaxSupply.spec.ts

@@ -27,7 +27,7 @@ describe('MaxSupply - Unlimited', () => {
         deployer = await blockchain.treasury('deployer');
         other = await blockchain.treasury("other");
 
-        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address));
+        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address, 0n));
         jettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, deployer.address));
         otherJettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, other.address));
 

tests/Mintable.spec.ts

@@ -27,7 +27,7 @@ describe('Mintable', () => {
         deployer = await blockchain.treasury('deployer');
         other = await blockchain.treasury("other");
 
-        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address));
+        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address, 0n));
         jettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, deployer.address));
         otherJettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, other.address));
 

tests/Ownership.spec.ts

@@ -25,7 +25,7 @@ describe('OwnerShip', () => {
         deployer = await blockchain.treasury('deployer');
         other = await blockchain.treasury("other");
 
-        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address));
+        jettonMaster = blockchain.openContract(await JettonMaster.fromInit(deployer.address, 0n));
         jettonWallet = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, deployer.address));
         jettonWallet2 = blockchain.openContract(await JettonWallet.fromInit(jettonMaster.address, other.address));