@alcorexchange/alcor-swap-sdk/test/maxLiquidityForAmounts.test copy.ts

## Installation ​​ **npm** ``` npm i @alcorexchange/alcor-swap-sdk ``` **yarn** ``` yarn add @alcorexchange/alcor-swap-sdk ``` ## Usage ### Import:

import { MaxUint128 } from "internalConstants";
import JSBI from "jsbi";
import { encodeSqrtRatioX64 } from "utils/encodeSqrtRatioX64";
import { maxLiquidityForAmounts } from "utils/maxLiquidityForAmounts";

describe("#maxLiquidityForAmounts", () => {
  describe("imprecise", () => {
    describe("price inside", () => {
      it("100 tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(1, 1),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            "200",
            false
          )
        ).toEqual(JSBI.BigInt(2148));
      });

      it("100 tokenA, max tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(1, 1),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            MaxUint128,
            false
          )
        ).toEqual(JSBI.BigInt(2148));
      });

      it("max tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(1, 1),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            MaxUint128,
            "200",
            false
          )
        ).toEqual(JSBI.BigInt(4297));
      });
    });

    describe("price below", () => {
      it("100 tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(99, 110),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            "200",
            false
          )
        ).toEqual(JSBI.BigInt(1048));
      });

      it("100 tokenA, max tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(99, 110),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            MaxUint128,
            false
          )
        ).toEqual(JSBI.BigInt(1048));
      });

      it("max tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(99, 110),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            MaxUint128,
            "200",
            false
          )
        ).toEqual(JSBI.BigInt("3568911573029623480160382055964570221102"));
      });
    });

    describe("price above", () => {
      it("100 tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(111, 100),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            "200",
            false
          )
        ).toEqual(JSBI.BigInt(2097));
      });

      it("100 tokenA, max tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(111, 100),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            MaxUint128,
            false
          )
        ).toEqual(JSBI.BigInt("3568911573029623480353853140008939060654"));
      });

      it("max tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(111, 100),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            MaxUint128,
            "200",
            false
          )
        ).toEqual(JSBI.BigInt(2097));
      });
    });
  });

  describe("precise", () => {
    describe("price inside", () => {
      it("100 tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(1, 1),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            "200",
            true
          )
        ).toEqual(JSBI.BigInt(2148));
      });

      it("100 tokenA, max tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(1, 1),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            MaxUint128,
            true
          )
        ).toEqual(JSBI.BigInt(2148));
      });

      it("max tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(1, 1),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            MaxUint128,
            "200",
            true
          )
        ).toEqual(JSBI.BigInt(4297));
      });
    });

    describe("price below", () => {
      it("100 tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(99, 110),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            "200",
            true
          )
        ).toEqual(JSBI.BigInt(1048));
      });

      it("100 tokenA, max tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(99, 110),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            MaxUint128,
            true
          )
        ).toEqual(JSBI.BigInt(1048));
      });

      it("max tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(99, 110),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            MaxUint128,
            "200",
            true
          )
        ).toEqual(JSBI.BigInt("3568911573029623480272463980731618558035"));
      });
    });

    describe("price above", () => {
      it("100 tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(111, 100),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            "200",
            true
          )
        ).toEqual(JSBI.BigInt(2097));
      });

      it("100 tokenA, max tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(111, 100),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            "100",
            MaxUint128,
            true
          )
        ).toEqual(JSBI.BigInt("3568911573029623480353853140008939060654"));
      });

      it("max tokenA, 200 tokenB", () => {
        expect(
          maxLiquidityForAmounts(
            encodeSqrtRatioX64(111, 100),
            encodeSqrtRatioX64(100, 110),
            encodeSqrtRatioX64(110, 100),
            MaxUint128,
            "200",
            true
          )
        ).toEqual(JSBI.BigInt(2097));
      });
    });
  });
});