@reown/appkit-controllers
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80 lines • 4.13 kB
JavaScript
import { describe, expect, it } from 'vitest';
import { NumberUtil } from '@reown/appkit-common';
import { INITIAL_GAS_LIMIT } from '../../src/controllers/SwapController.js';
import { SwapApiUtil } from '../../src/utils/SwapApiUtil.js';
import { SwapCalculationUtil } from '../../src/utils/SwapCalculationUtil.js';
import { balanceResponse, networkTokenPriceResponse } from '../mocks/SwapController.js';
// - Mocks ---------------------------------------------------------------------
const gasLimit = BigInt(INITIAL_GAS_LIMIT);
const gasFee = BigInt(455966887160);
const tokensWithBalance = SwapApiUtil.mapBalancesToSwapTokens(balanceResponse.balances);
// eslint-disable-next-line @typescript-eslint/non-nullable-type-assertion-style
const sourceToken = tokensWithBalance[0];
const sourceTokenAmount = '1';
// eslint-disable-next-line @typescript-eslint/non-nullable-type-assertion-style
const toToken = tokensWithBalance[1];
const networkPrice = networkTokenPriceResponse.fungibles[0]?.price.toString() || '0';
// -- Tests --------------------------------------------------------------------
describe('SwapCalculationUtil', () => {
it('should get gas price in Ether and USD as expected', () => {
const gasPriceInEther = SwapCalculationUtil.getGasPriceInEther(gasLimit, gasFee);
const gasPriceInUSD = SwapCalculationUtil.getGasPriceInUSD(networkPrice, gasLimit, gasFee);
expect(gasPriceInEther).toEqual(0.068395033074);
expect(gasPriceInUSD).toEqual(0.0492923003364318);
});
it('should return insufficient balance as expected', () => {
expect(SwapCalculationUtil.isInsufficientNetworkTokenForGas('0', 0.01)).toEqual(true);
});
it('should return insufficient balance for gas as expected', () => {
const gasPriceInUSD = SwapCalculationUtil.getGasPriceInUSD(networkPrice, gasLimit, gasFee);
const networkBalanceInUSD = NumberUtil.multiply(sourceToken.quantity.numeric, sourceToken.price).toString();
expect(SwapCalculationUtil.isInsufficientNetworkTokenForGas(networkBalanceInUSD, gasPriceInUSD)).toEqual(false);
});
it('should get the price impact as expected', () => {
const toTokenAmount = SwapCalculationUtil.getToTokenAmount({
sourceToken,
sourceTokenAmount,
sourceTokenPrice: sourceToken.price,
toToken,
toTokenPrice: toToken.price
});
const priceImpact = SwapCalculationUtil.getPriceImpact({
sourceTokenAmount,
sourceTokenPriceInUSD: sourceToken.price,
toTokenAmount,
toTokenPriceInUSD: toToken.price
});
expect(priceImpact).equal(0.8499999999999975);
});
it('should get to token amount with same decimals including provider fee as expected', () => {
const toTokenAmount = SwapCalculationUtil.getToTokenAmount({
sourceToken,
sourceTokenAmount,
sourceTokenPrice: sourceToken.price,
toToken,
toTokenPrice: toToken.price
});
expect(toTokenAmount).equal('0.017817571677266286');
});
it('should get to token amount with different decimals including provider fee as expected', () => {
// eslint-disable-next-line @typescript-eslint/non-nullable-type-assertion-style
const newToToken = tokensWithBalance[2];
const toTokenAmount = SwapCalculationUtil.getToTokenAmount({
sourceToken,
sourceTokenAmount,
sourceTokenPrice: sourceToken.price,
toToken: newToToken,
toTokenPrice: newToToken.price
});
expect(toTokenAmount).equal('0.714549');
});
it('should calculate the maximum slippage as expected', () => {
const maxSlippage = SwapCalculationUtil.getMaxSlippage(1, '1');
expect(maxSlippage).toEqual(0.01);
});
it('should calculate the provider fee as expected', () => {
const providerFee = SwapCalculationUtil.getProviderFee(sourceTokenAmount);
expect(providerFee).toEqual('0.0085');
});
});
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