fix: returned back incorrectly merged ERC20Tests

Author: JeneaVranceanu

Tests/web3swiftTests/localTests/ERC20Tests.swift

@@ -4,42 +4,36 @@
 //  Copyright © 2018 Alex Vlasov. All rights reserved.
 //
 import XCTest
+import BigInt
 import Core
 
 @testable import web3swift
-//TODO: refactor me
-class web3swiftEventloopTests: XCTestCase {
 
-    func testBasicEventLoop() async throws {
-        var ticksToWait = 5
-        let expectation = self.expectation(description: "Waiting")
-        func getBlockNumber(_ web3: web3) async {
-            do {
-                let blockNumber = try await web3.eth.blockNumber()
-                print("Block number = " + String(blockNumber))
-                ticksToWait = ticksToWait - 1
-                if ticksToWait == 0 {
-                    expectation.fulfill()
-                }
-            } catch {
-                print(error)
-            }
-        }
+//TODO: refactor me
+class ERC20Tests: LocalTestCase {
 
-        let web3main = try await Web3.new(URL.init(string: "http://127.0.0.1:8545")!)
-        let functionToCall: web3.Eventloop.EventLoopCall = getBlockNumber
-        let monitoredProperty = web3.Eventloop.MonitoredProperty.init(name: "onNewBlock", calledFunction: functionToCall)
-        web3main.eventLoop.monitoredProperties.append(monitoredProperty)
-        web3main.eventLoop.start(5)
+    func testERC20name() async throws {
+        let (web3, _, receipt, _) = try await TestHelpers.localDeployERC20()
 
-        await waitForExpectations(timeout: 60, handler: nil)
+        let parameters = [] as [AnyObject]
+        let contract = web3.contract(Web3.Utils.erc20ABI, at: receipt.contractAddress!)!
+        let readTX = contract.read("name", parameters:parameters)!
+        readTX.transactionOptions.from = EthereumAddress("0xe22b8979739D724343bd002F9f432F5990879901")
+        let response = try await readTX.decodedData()
+        let name = response["0"] as? String
+        XCTAssert(name == "web3swift", "Failed to create ERC20 name transaction")
     }
 
-    func getKeystoreData() -> Data? {
-        let bundle = Bundle(for: type(of: self))
-        guard let path = bundle.path(forResource: "key", ofType: "json") else {return nil}
-        guard let data = NSData(contentsOfFile: path) else {return nil}
-        return data as Data
+    func testERC20tokenBalance() async throws {
+        let (web3, _, receipt, _) = try await TestHelpers.localDeployERC20()
+
+        let addressOfUser = EthereumAddress("0xe22b8979739D724343bd002F9f432F5990879901")!
+        let contract = web3.contract(Web3.Utils.erc20ABI, at: receipt.contractAddress!, abiVersion: 2)!
+        guard let readTX = contract.read("balanceOf", parameters: [addressOfUser] as [AnyObject]) else {return XCTFail()}
+        readTX.transactionOptions.from = addressOfUser
+        let tokenBalance = try await readTX.decodedData()
+        guard let bal = tokenBalance["0"] as? BigUInt else {return XCTFail()}
+        print(String(bal))
     }
 
 }