import nock from 'nock';
import { MOCKS } from '../../../test/jest';
import {
MAINNET_CHAIN_ID,
BSC_CHAIN_ID,
POLYGON_CHAIN_ID,
LOCALHOST_CHAIN_ID,
RINKEBY_CHAIN_ID,
KOVAN_CHAIN_ID,
} from '../../../shared/constants/network';
import {
SWAPS_CHAINID_CONTRACT_ADDRESS_MAP,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP,
WETH_CONTRACT_ADDRESS,
WBNB_CONTRACT_ADDRESS,
WMATIC_CONTRACT_ADDRESS,
ETHEREUM,
POLYGON,
BSC,
RINKEBY,
} from '../../../shared/constants/swaps';
import {
TOKENS,
EXPECTED_TOKENS_RESULT,
MOCK_TRADE_RESPONSE_2,
AGGREGATOR_METADATA,
TOP_ASSETS,
} from './swaps-util-test-constants';
import {
fetchTradesInfo,
fetchTokens,
fetchAggregatorMetadata,
fetchTopAssets,
isContractAddressValid,
getNetworkNameByChainId,
getSwapsLivenessForNetwork,
countDecimals,
shouldEnableDirectWrapping,
} from './swaps.util';
jest.mock('../../helpers/utils/storage-helpers.js', () => ({
getStorageItem: jest.fn(),
setStorageItem: jest.fn(),
}));
describe('Swaps Util', () => {
afterAll(() => {
nock.cleanAll();
});
describe('fetchTradesInfo', () => {
const expectedResult1 = {
zeroEx: {
trade: {
// the ethereum transaction data for the swap
data:
'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',
from: '0x2369267687A84ac7B494daE2f1542C40E37f4455',
value: '0x14401eab384000',
to: '0x61935cbdd02287b511119ddb11aeb42f1593b7ef',
gas: '0xa',
gasPrice: undefined,
},
sourceAmount: '10000000000000000',
destinationAmount: '2248687',
error: null,
fee: 0.875,
sourceToken: TOKENS[0].address,
destinationToken: TOKENS[1].address,
fetchTime: 553,
aggregator: 'zeroEx',
aggType: 'AGG',
approvalNeeded: {
data:
'0x095ea7b300000000000000000000000095e6f48254609a6ee006f7d493c8e5fb97094cef0000000000000000000000000000000000000000004a817c7ffffffdabf41c00',
to: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
value: '0x0',
from: '0x2369267687A84ac7B494daE2f1542C40E37f4455',
gas: '0x12',
gasPrice: '0x34',
},
maxGas: 10,
averageGas: 1,
slippage: '3',
},
};
const expectedResult2 = {
zeroEx: {
...expectedResult1.zeroEx,
sourceAmount: '20000000000000000',
},
};
it('should fetch trade info on prod', async () => {
nock('https://api2.metaswap.codefi.network')
.get('/networks/1/trades')
.query(true)
.reply(200, MOCK_TRADE_RESPONSE_2);
const result = await fetchTradesInfo(
{
TOKENS,
slippage: '3',
sourceToken: TOKENS[0].address,
destinationToken: TOKENS[1].address,
value: '2000000000000000000',
fromAddress: '0xmockAddress',
sourceSymbol: TOKENS[0].symbol,
sourceDecimals: TOKENS[0].decimals,
sourceTokenInfo: { ...TOKENS[0] },
destinationTokenInfo: { ...TOKENS[1] },
},
{ chainId: MAINNET_CHAIN_ID },
);
expect(result).toStrictEqual(expectedResult2);
});
});
describe('fetchTokens', () => {
beforeAll(() => {
nock('https://api2.metaswap.codefi.network')
.persist()
.get('/networks/1/tokens')
.reply(200, TOKENS);
});
it('should fetch tokens', async () => {
const result = await fetchTokens(MAINNET_CHAIN_ID);
expect(result).toStrictEqual(EXPECTED_TOKENS_RESULT);
});
it('should fetch tokens on prod', async () => {
const result = await fetchTokens(MAINNET_CHAIN_ID);
expect(result).toStrictEqual(EXPECTED_TOKENS_RESULT);
});
});
describe('fetchAggregatorMetadata', () => {
beforeAll(() => {
nock('https://api2.metaswap.codefi.network')
.persist()
.get('/networks/1/aggregatorMetadata')
.reply(200, AGGREGATOR_METADATA);
});
it('should fetch aggregator metadata', async () => {
const result = await fetchAggregatorMetadata(MAINNET_CHAIN_ID);
expect(result).toStrictEqual(AGGREGATOR_METADATA);
});
it('should fetch aggregator metadata on prod', async () => {
const result = await fetchAggregatorMetadata(MAINNET_CHAIN_ID);
expect(result).toStrictEqual(AGGREGATOR_METADATA);
});
});
describe('fetchTopAssets', () => {
beforeAll(() => {
nock('https://api2.metaswap.codefi.network')
.persist()
.get('/networks/1/topAssets')
.reply(200, TOP_ASSETS);
});
const expectedResult = {
'0x514910771af9ca656af840dff83e8264ecf986ca': {
index: '0',
},
'0x04fa0d235c4abf4bcf4787af4cf447de572ef828': {
index: '1',
},
'0x0bc529c00c6401aef6d220be8c6ea1667f6ad93e': {
index: '2',
},
'0x80fb784b7ed66730e8b1dbd9820afd29931aab03': {
index: '3',
},
'0xc011a73ee8576fb46f5e1c5751ca3b9fe0af2a6f': {
index: '4',
},
};
it('should fetch top assets', async () => {
const result = await fetchTopAssets(MAINNET_CHAIN_ID);
expect(result).toStrictEqual(expectedResult);
});
it('should fetch top assets on prod', async () => {
const result = await fetchTopAssets(MAINNET_CHAIN_ID);
expect(result).toStrictEqual(expectedResult);
});
});
describe('isContractAddressValid', () => {
let usedTradeTxParams;
beforeEach(() => {
usedTradeTxParams = {
data: 'testData',
from: '0xe53a5bc256898bfa5673b20aceeb2b2152075d17',
gas: '2427c',
gasPrice: '27592f5a00',
to: WETH_CONTRACT_ADDRESS,
value: '0xde0b6b3a7640000',
};
});
it('returns true if "to" is WETH contract address', () => {
expect(
isContractAddressValid(usedTradeTxParams.to, MAINNET_CHAIN_ID),
).toBe(true);
});
it('returns true if "to" is WETH contract address with some uppercase chars', () => {
usedTradeTxParams.to = '0xc02AAA39B223fe8d0a0e5c4f27ead9083c756cc2';
expect(
isContractAddressValid(usedTradeTxParams.to, MAINNET_CHAIN_ID),
).toBe(true);
});
it('returns true if "to" is ETH mainnet contract address on ETH mainnet', () => {
usedTradeTxParams.to =
SWAPS_CHAINID_CONTRACT_ADDRESS_MAP[MAINNET_CHAIN_ID];
expect(
isContractAddressValid(usedTradeTxParams.to, MAINNET_CHAIN_ID),
).toBe(true);
});
it('returns true if "to" is WBNB contract address on BSC mainnet', () => {
usedTradeTxParams.to = WBNB_CONTRACT_ADDRESS;
expect(isContractAddressValid(usedTradeTxParams.to, BSC_CHAIN_ID)).toBe(
true,
);
});
it('returns true if "to" is WMATIC contract address on Polygon mainnet', () => {
usedTradeTxParams.to = WMATIC_CONTRACT_ADDRESS;
expect(
isContractAddressValid(usedTradeTxParams.to, POLYGON_CHAIN_ID),
).toBe(true);
});
it('returns false if "to" is BSC contract address on ETH mainnet', () => {
usedTradeTxParams.to = SWAPS_CHAINID_CONTRACT_ADDRESS_MAP[BSC_CHAIN_ID];
expect(
isContractAddressValid(usedTradeTxParams.to, MAINNET_CHAIN_ID),
).toBe(false);
});
it('returns false if contractAddress is null', () => {
expect(isContractAddressValid(null, LOCALHOST_CHAIN_ID)).toBe(false);
});
it('returns false if chainId is incorrect', () => {
expect(
isContractAddressValid(usedTradeTxParams.to, 'incorrectChainId'),
).toBe(false);
});
it('returns true if "to" is BSC contract address on BSC network', () => {
usedTradeTxParams.to = SWAPS_CHAINID_CONTRACT_ADDRESS_MAP[BSC_CHAIN_ID];
expect(isContractAddressValid(usedTradeTxParams.to, BSC_CHAIN_ID)).toBe(
true,
);
});
it('returns true if "to" is Polygon contract address on Polygon network', () => {
usedTradeTxParams.to =
SWAPS_CHAINID_CONTRACT_ADDRESS_MAP[POLYGON_CHAIN_ID];
expect(
isContractAddressValid(usedTradeTxParams.to, POLYGON_CHAIN_ID),
).toBe(true);
});
it('returns true if "to" is Rinkeby contract address on Rinkeby network', () => {
usedTradeTxParams.to =
SWAPS_CHAINID_CONTRACT_ADDRESS_MAP[RINKEBY_CHAIN_ID];
expect(
isContractAddressValid(usedTradeTxParams.to, RINKEBY_CHAIN_ID),
).toBe(true);
});
it('returns true if "to" is testnet contract address', () => {
usedTradeTxParams.to =
SWAPS_CHAINID_CONTRACT_ADDRESS_MAP[LOCALHOST_CHAIN_ID];
expect(
isContractAddressValid(usedTradeTxParams.to, LOCALHOST_CHAIN_ID),
).toBe(true);
});
it('returns true if "to" is testnet contract address with some uppercase chars', () => {
usedTradeTxParams.to = '0x881D40237659C251811CEC9c364ef91dC08D300C';
expect(
isContractAddressValid(usedTradeTxParams.to, LOCALHOST_CHAIN_ID),
).toBe(true);
});
it('returns false if "to" has mismatch with current chainId', () => {
usedTradeTxParams.to = SWAPS_CHAINID_CONTRACT_ADDRESS_MAP[BSC_CHAIN_ID];
expect(
isContractAddressValid(usedTradeTxParams.to, LOCALHOST_CHAIN_ID),
).toBe(false);
});
});
describe('getNetworkNameByChainId', () => {
it('returns "ethereum" for mainnet chain ID', () => {
expect(getNetworkNameByChainId(MAINNET_CHAIN_ID)).toBe(ETHEREUM);
});
it('returns "bsc" for mainnet chain ID', () => {
expect(getNetworkNameByChainId(BSC_CHAIN_ID)).toBe(BSC);
});
it('returns "polygon" for mainnet chain ID', () => {
expect(getNetworkNameByChainId(POLYGON_CHAIN_ID)).toBe(POLYGON);
});
it('returns "rinkeby" for Rinkeby chain ID', () => {
expect(getNetworkNameByChainId(RINKEBY_CHAIN_ID)).toBe(RINKEBY);
});
it('returns an empty string for an unsupported network', () => {
expect(getNetworkNameByChainId(KOVAN_CHAIN_ID)).toBe('');
});
});
describe('getSwapsLivenessForNetwork', () => {
it('returns info that Swaps are enabled and cannot use API v2 for localhost chain ID', () => {
const expectedSwapsLiveness = {
swapsFeatureIsLive: true,
};
expect(
getSwapsLivenessForNetwork(
MOCKS.createFeatureFlagsResponse(),
LOCALHOST_CHAIN_ID,
),
).toMatchObject(expectedSwapsLiveness);
});
it('returns info that Swaps are enabled and cannot use API v2 for Rinkeby chain ID', () => {
const expectedSwapsLiveness = {
swapsFeatureIsLive: true,
};
expect(
getSwapsLivenessForNetwork(
MOCKS.createFeatureFlagsResponse(),
RINKEBY_CHAIN_ID,
),
).toMatchObject(expectedSwapsLiveness);
});
it('returns info that Swaps are disabled and cannot use API v2 if network name is not found', () => {
const expectedSwapsLiveness = {
swapsFeatureIsLive: false,
};
expect(
getSwapsLivenessForNetwork(
MOCKS.createFeatureFlagsResponse(),
KOVAN_CHAIN_ID,
),
).toMatchObject(expectedSwapsLiveness);
});
it('returns info that Swaps are enabled and can use API v2 for mainnet chain ID', () => {
const expectedSwapsLiveness = {
swapsFeatureIsLive: true,
};
expect(
getSwapsLivenessForNetwork(
MOCKS.createFeatureFlagsResponse(),
MAINNET_CHAIN_ID,
),
).toMatchObject(expectedSwapsLiveness);
});
it('returns info that Swaps are enabled but can only use API v1 for mainnet chain ID', () => {
const expectedSwapsLiveness = {
swapsFeatureIsLive: true,
};
const swapsFeatureFlags = MOCKS.createFeatureFlagsResponse();
swapsFeatureFlags[ETHEREUM].extension_active = false;
expect(
getSwapsLivenessForNetwork(swapsFeatureFlags, MAINNET_CHAIN_ID),
).toMatchObject(expectedSwapsLiveness);
});
});
describe('countDecimals', () => {
it('returns 0 decimals for an undefined value', () => {
expect(countDecimals()).toBe(0);
});
it('returns 0 decimals for number: 1', () => {
expect(countDecimals(1)).toBe(0);
});
it('returns 1 decimals for number: 1.1', () => {
expect(countDecimals(1.1)).toBe(1);
});
it('returns 3 decimals for number: 1.123', () => {
expect(countDecimals(1.123)).toBe(3);
});
it('returns 9 decimals for number: 1.123456789', () => {
expect(countDecimals(1.123456789)).toBe(9);
});
});
describe('shouldEnableDirectWrapping', () => {
const randomTokenAddress = '0x881d40237659c251811cec9c364ef91234567890';
it('returns true if swapping from ETH to WETH', () => {
expect(
shouldEnableDirectWrapping(
MAINNET_CHAIN_ID,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[MAINNET_CHAIN_ID]?.address,
WETH_CONTRACT_ADDRESS,
),
).toBe(true);
});
it('returns true if swapping from ETH with uppercase chars to WETH', () => {
const ethAddressWithUpperCaseChars =
'0X0000000000000000000000000000000000000000';
expect(
shouldEnableDirectWrapping(
MAINNET_CHAIN_ID,
ethAddressWithUpperCaseChars,
WETH_CONTRACT_ADDRESS,
),
).toBe(true);
});
it('returns true if swapping from WETH to ETH', () => {
expect(
shouldEnableDirectWrapping(
MAINNET_CHAIN_ID,
WETH_CONTRACT_ADDRESS,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[MAINNET_CHAIN_ID]?.address,
),
).toBe(true);
});
it('returns true if swapping from WETH with uppercase chars to ETH', () => {
const wethContractAddressWithUpperCaseChars =
'0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2';
expect(
shouldEnableDirectWrapping(
MAINNET_CHAIN_ID,
wethContractAddressWithUpperCaseChars,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[MAINNET_CHAIN_ID]?.address,
),
).toBe(true);
});
it('returns false if swapping from ETH to a non-WETH token', () => {
expect(
shouldEnableDirectWrapping(
MAINNET_CHAIN_ID,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[MAINNET_CHAIN_ID]?.address,
randomTokenAddress,
),
).toBe(false);
});
it('returns true if swapping from BNB to WBNB', () => {
expect(
shouldEnableDirectWrapping(
BSC_CHAIN_ID,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[BSC_CHAIN_ID]?.address,
WBNB_CONTRACT_ADDRESS,
),
).toBe(true);
});
it('returns true if swapping from WBNB to BNB', () => {
expect(
shouldEnableDirectWrapping(
BSC_CHAIN_ID,
WBNB_CONTRACT_ADDRESS,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[BSC_CHAIN_ID]?.address,
),
).toBe(true);
});
it('returns false if swapping from BNB to a non-WBNB token', () => {
expect(
shouldEnableDirectWrapping(
BSC_CHAIN_ID,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[BSC_CHAIN_ID]?.address,
randomTokenAddress,
),
).toBe(false);
});
it('returns true if swapping from MATIC to WMATIC', () => {
expect(
shouldEnableDirectWrapping(
POLYGON_CHAIN_ID,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[POLYGON_CHAIN_ID]?.address,
WMATIC_CONTRACT_ADDRESS,
),
).toBe(true);
});
it('returns true if swapping from WMATIC to MATIC', () => {
expect(
shouldEnableDirectWrapping(
POLYGON_CHAIN_ID,
WMATIC_CONTRACT_ADDRESS,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[POLYGON_CHAIN_ID]?.address,
),
).toBe(true);
});
it('returns false if swapping from MATIC to a non-WMATIC token', () => {
expect(
shouldEnableDirectWrapping(
POLYGON_CHAIN_ID,
SWAPS_CHAINID_DEFAULT_TOKEN_MAP[POLYGON_CHAIN_ID]?.address,
randomTokenAddress,
),
).toBe(false);
});
it('returns false if a source token is undefined', () => {
expect(
shouldEnableDirectWrapping(
MAINNET_CHAIN_ID,
undefined,
WETH_CONTRACT_ADDRESS,
),
).toBe(false);
});
it('returns false if a destination token is undefined', () => {
expect(
shouldEnableDirectWrapping(MAINNET_CHAIN_ID, WETH_CONTRACT_ADDRESS),
).toBe(false);
});
});
});