Erc20 transfer

src/contracts-wrappers/token.ts

@@ -1,4 +1,5 @@
 import { Args, U256 } from '../basicElements'
+import { Operation } from '../operation'
 import { ReadSCOptions, SmartContract } from '../smartContracts'
 
 export class MRC20 extends SmartContract {
@@ -10,5 +11,17 @@
     )
     return U256.fromBytes(res.value)
   }
+
+  async transfer(
+    to: string,
+    amount: bigint,
+    options?: ReadSCOptions
+  ): Promise<Operation> {
+    return this.call(
+      'transfer',
+      new Args().addString(to).addU256(amount),
+      options
+    )
+  }
   // TODO: Implement the rest of the functions
 }

test/integration/MRC20.spec.ts

@@ -10,8 +10,17 @@ describe('Token wrapper tests', () => {
     usdcContract = new MRC20(provider, USDC)
   })
 
-  test('balanceOf', async () => {
+  test('transfer', async () => {
+    const amount = 1_000n
     const balance = await usdcContract.balanceOf(provider.address)
-    expect(balance).toBeGreaterThan(0n)
+
+    const operation = await usdcContract.transfer(
+      'AU1wN8rn4SkwYSTDF3dHFY4U28KtsqKL1NnEjDZhHnHEy6cEQm53',
+      amount
+    )
+    await operation.waitSpeculativeExecution()
+
+    const newBalance = await usdcContract.balanceOf(provider.address)
+    expect(newBalance).toBe(balance - amount)
   })
 })

test/integration/setup.ts

@@ -6,6 +6,8 @@ import { Web3Provider } from '../../src/provider'
 export let account: Account
 export let provider: Web3Provider
 
+jest.setTimeout(120_000)
+
 beforeAll(async () => {
   account = await Account.fromEnv()
   provider = Web3Provider.buildnet(account)