@alcorexchange/alcor-swap-sdk/test/tickListDataProvider.test.ts

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

import JSBI from "jsbi";
import { TickListDataProvider } from "entities/tickListDataProvider";

describe("TickListDataProvider", () => {
  describe("constructor", () => {
    it("can take an empty list of ticks", () => {
      new TickListDataProvider([], 1);
    });
    it("throws for 0 tick spacing", () => {
      expect(() => new TickListDataProvider([], 0)).toThrow(
        "TICK_SPACING_NONZERO"
      );
    });
    it("throws for uneven tick list", async () => {
      await expect(
        () =>
          new TickListDataProvider(
            [
              { id: -1, liquidityNet: -1, liquidityGross: 1 },
              { id: 1, liquidityNet: 2, liquidityGross: 1 },
            ],
            1
          )
      ).toThrow("ZERO_NET");
    });
  });

  describe("#getTick", () => {
    it("throws if tick not in list", async () => {
      const provider = new TickListDataProvider(
        [
          { id: -1, liquidityNet: -1, liquidityGross: 1 },
          { id: 1, liquidityNet: 1, liquidityGross: 1 },
        ],
        1
      );
      await expect(provider.getTick(0)).rejects.toThrow("NOT_CONTAINED");
    });
    it("gets the smallest tick from the list", async () => {
      const provider = new TickListDataProvider(
        [
          { id: -1, liquidityNet: -1, liquidityGross: 1 },
          { id: 1, liquidityNet: 1, liquidityGross: 1 },
        ],
        1
      );
      const { liquidityNet, liquidityGross } = await provider.getTick(-1);
      expect(liquidityNet).toEqual(JSBI.BigInt(-1));
      expect(liquidityGross).toEqual(JSBI.BigInt(1));
    });
    it("gets the largest tick from the list", async () => {
      const provider = new TickListDataProvider(
        [
          { id: -1, liquidityNet: -1, liquidityGross: 1 },
          { id: 1, liquidityNet: 1, liquidityGross: 1 },
        ],
        1
      );
      const { liquidityNet, liquidityGross } = await provider.getTick(1);
      expect(liquidityNet).toEqual(JSBI.BigInt(1));
      expect(liquidityGross).toEqual(JSBI.BigInt(1));
    });
  });
});