fix: getTokenConstructor to work for testnet tokens + test cases

Ticket: WIN-7914

Author: ArunBala-Bitgo

modules/bitgo/src/v2/coinFactory.ts

@@ -904,31 +904,44 @@ export function getCoinConstructor(coinName: string): CoinConstructor | undefine
   }
 }
 
-export const buildEthLikeChainToTestnetMap = (): Record<string, string> => {
-  const map: Record<string, string> = {};
+export const buildEthLikeChainToTestnetMap = (): {
+  mainnetToTestnetMap: Record<string, string>;
+  testnetToMainnetMap: Record<string, string>;
+} => {
+  const testnetToMainnetMap: Record<string, string> = {};
+  const mainnetToTestnetMap: Record<string, string> = {};
 
   const enabledEvmCoins = ['ip'];
 
   // TODO: remove ip coin here and remove other evm coins from switch block, once changes are tested (Ticket: https://bitgoinc.atlassian.net/browse/WIN-7835)
   coins.forEach((coin) => {
     if (coin.network.type === NetworkType.TESTNET && !coin.isToken && enabledEvmCoins.includes(coin.family)) {
       if (coins.get(coin.family)?.features.includes(CoinFeature.SUPPORTS_ERC20)) {
-        map[coin.family] = `${coin.name}`;
+        mainnetToTestnetMap[coin.family] = `${coin.name}`;
+        testnetToMainnetMap[coin.name] = `${coin.family}`;
       }
     }
   });
 
-  return map;
+  return { mainnetToTestnetMap, testnetToMainnetMap };
 };
 
 // TODO: add IP token here and test changes (Ticket: https://bitgoinc.atlassian.net/browse/WIN-7835)
-const ethLikeChainToTestnetMap: Record<string, string> = buildEthLikeChainToTestnetMap();
+const { mainnetToTestnetMap, testnetToMainnetMap } = buildEthLikeChainToTestnetMap();
 
 export function getTokenConstructor(tokenConfig: TokenConfig): CoinConstructor | undefined {
-  if (tokenConfig.coin in ethLikeChainToTestnetMap) {
+  const testnetCoin = mainnetToTestnetMap[tokenConfig.coin];
+  if (testnetCoin) {
     return EthLikeErc20Token.createTokenConstructor(tokenConfig as EthLikeTokenConfig, {
       Mainnet: tokenConfig.coin,
-      Testnet: ethLikeChainToTestnetMap[tokenConfig.coin],
+      Testnet: testnetCoin,
+    });
+  }
+  const mainnetCoin = testnetToMainnetMap[tokenConfig.coin];
+  if (mainnetCoin) {
+    return EthLikeErc20Token.createTokenConstructor(tokenConfig as EthLikeTokenConfig, {
+      Mainnet: mainnetCoin,
+      Testnet: tokenConfig.coin,
     });
   }
   switch (tokenConfig.coin) {

modules/bitgo/test/v2/resources/amsTokenConfig.ts

@@ -21,4 +21,26 @@ export const reducedAmsTokenConfig = {
       contractAddress: '0x89a959b9184b4f8c8633646d5dfd049d2ebc983a',
     },
   ],
+  'tip:faketoken': [
+    {
+      id: 'a1b2c3d4-e5f6-4789-8abc-def123456789',
+      fullName: 'Story Testnet Faketoken',
+      name: 'tip:faketoken',
+      prefix: '',
+      suffix: 'TIP:FAKETOKEN',
+      baseUnit: 'wei',
+      kind: 'crypto',
+      family: 'ip',
+      isToken: true,
+      additionalFeatures: [],
+      excludedFeatures: [],
+      decimalPlaces: 18,
+      asset: 'tip:faketoken',
+      network: {
+        name: 'BaseChainTestnet',
+      },
+      primaryKeyCurve: 'secp256k1',
+      contractAddress: '0x1234567890123456789012345678901234567890',
+    },
+  ],
 };

modules/bitgo/test/v2/unit/ams/ams.ts

@@ -100,5 +100,36 @@ describe('Asset metadata service', () => {
       const coin = bitgo.coin(tokenName);
       should.exist(coin);
     });
+
+    it('should register a EVM coin token from statics library if available', async () => {
+      const bitgo = TestBitGo.decorate(BitGo, { env: 'mock', microservicesUri, useAms: true } as BitGoOptions);
+      bitgo.initializeTestVars();
+      await bitgo.registerToken('tip:usdc');
+      const coin = bitgo.coin('tip:usdc');
+      should.exist(coin);
+    });
+
+    it('should register an EVM coin token from AMS', async () => {
+      const bitgo = TestBitGo.decorate(BitGo, { env: 'mock', microservicesUri, useAms: true } as BitGoOptions);
+      bitgo.initializeTestVars();
+
+      const tokenName = 'tip:faketoken';
+
+      // Setup nocks for AMS API call
+      nock(microservicesUri).get(`/api/v1/assets/name/${tokenName}`).reply(200, reducedAmsTokenConfig[tokenName][0]);
+
+      await bitgo.registerToken(tokenName);
+      const coin = bitgo.coin(tokenName);
+      should.exist(coin);
+      coin.type.should.equal(tokenName);
+      const staticsCoin = coin.getConfig();
+      staticsCoin.name.should.equal('tip');
+      staticsCoin.decimalPlaces.should.equal(18);
+      // For EVM tokens, contractAddress is available on the statics coin
+      if ('contractAddress' in staticsCoin && staticsCoin.contractAddress) {
+        (staticsCoin.contractAddress as string).should.equal('0x1234567890123456789012345678901234567890');
+      }
+      staticsCoin.family.should.equal('ip');
+    });
   });
 });

modules/statics/src/coins.ts

@@ -137,6 +137,17 @@ export function createToken(token: AmsTokenConfig): Readonly<BaseCoin> | undefin
   ];
 
   switch (family) {
+    case erc20ChainToNameMap[family]:
+      return initializer(
+        ...commonArgs.slice(0, 4), // id, name, fullName, decimalPlaces
+        token.contractAddress || token.tokenAddress, // contractAddress
+        token.asset,
+        token.network,
+        token.features,
+        token.prefix,
+        token.suffix,
+        token.primaryKeyCurve
+      );
     case 'arbeth':
     case 'avaxc':
     case 'baseeth':
@@ -152,7 +163,6 @@ export function createToken(token: AmsTokenConfig): Readonly<BaseCoin> | undefin
     case 'opeth':
     case 'polygon':
     case 'trx':
-    case erc20ChainToNameMap[family]:
       return initializer(
         ...commonArgs.slice(0, 4), // id, name, fullName, decimalPlaces
         token.contractAddress || token.tokenAddress, // contractAddress

modules/statics/src/tokenConfig.ts

@@ -1385,6 +1385,8 @@ export function getFormattedTokenConfigForCoin(coin: Readonly<BaseCoin>): TokenC
     return getJettonTokenConfig(coin);
   } else if (coin instanceof FlrERC20Token) {
     return getFlrTokenConfig(coin);
+  } else if (coin instanceof EthLikeERC20Token) {
+    return getEthLikeTokenConfig(coin);
   }
   return undefined;
 }

modules/statics/test/unit/coins.ts

@@ -35,6 +35,8 @@ import {
   reducedAmsTokenConfig,
   reducedTokenConfigForAllChains,
 } from './resources/amsTokenConfig';
+import { EthLikeErc20Token } from '../../../sdk-coin-evm/src';
+import { allCoinsAndTokens } from '../../src/allCoinsAndTokens';
 
 interface DuplicateCoinObject {
   name: string;
@@ -1280,4 +1282,21 @@ describe('create token map using config details', () => {
       }
     }
   });
+
+  it('should create tokens for all EVM coins using createToken', () => {
+    const evmCoinTokens = allCoinsAndTokens
+      .filter((coin) => coin.isToken && coins.get(coin.family)?.features.includes(CoinFeature.SUPPORTS_ERC20))
+      .map((coin) => coin);
+
+    for (const coin of evmCoinTokens) {
+      const token = createToken(coin);
+      token?.should.not.be.undefined();
+      token?.name.should.eql(coin.name);
+      token?.family.should.eql(coin.family);
+      token?.decimalPlaces.should.eql(coin.decimalPlaces);
+      if (token instanceof EthLikeErc20Token) {
+        (token as EthLikeErc20Token).tokenContractAddress.should.eql(coin?.contractAddress);
+      }
+    }
+  });
 });