@quantara/sdk
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JavaScript/TypeScript SDK for interacting with Quantara Protocol on Neura Testnet
37 lines (36 loc) • 1.74 kB
JavaScript
import { describe, expect, it } from "vitest";
import { applySlippageToMinOut, applySlippageToPrice } from "../trade";
describe("applySlippageToPrice", () => {
it("applies positive slippage if getShouldUseMaxPrice is true", () => {
// isIncrease=true and isLong=true => getShouldUseMaxPrice => true
const allowedSlippage = 100; // 1%
const price = 1000n;
const result = applySlippageToPrice(allowedSlippage, price, true, true);
// expected: price * (10000+100)/10000 = 1000n * 10100n / 10000n = 1010n
expect(result).toBe(1010n);
});
it("applies negative slippage if getShouldUseMaxPrice is false", () => {
// isIncrease=true or isLong=false => getShouldUseMaxPrice => false
const allowedSlippage = 100; // 1%
const price = 1000n;
const result = applySlippageToPrice(allowedSlippage, price, true, false);
// expected: price * (10000-100)/10000 = 1000n * 9900n / 10000n = 990n
expect(result).toBe(990n);
});
});
describe("applySlippageToMinOut", () => {
it("reduces minOutputAmount by allowed slippage", () => {
const allowedSlippage = 100; // 1%
const minOutputAmount = 10000n;
const result = applySlippageToMinOut(allowedSlippage, minOutputAmount);
// expected: minOut * (10000 - 100) / 10000 = 10_000n * 9900n / 10000n = 9900n
expect(result).toBe(9900n);
});
it("does nothing if slippage is zero", () => {
const allowedSlippage = 0;
const minOutputAmount = 10000n;
const result = applySlippageToMinOut(allowedSlippage, minOutputAmount);
// expected: 10_000n * (10000 - 0) / 10000n = 10_000n
expect(result).toBe(10000n);
});
});