import { scientificStrToDecimalStr } from "./helpers";

describe("scientificStrToDecimalStr", () => {
  it("not even scientific", () => {
    expect(scientificStrToDecimalStr("010")).toBe("10");
    expect(scientificStrToDecimalStr("-010")).toBe("-10");
  });
  it("zero power", () => {
    expect(scientificStrToDecimalStr("10e0")).toBe("10");
    expect(scientificStrToDecimalStr("1.0e0")).toBe("1");
    expect(scientificStrToDecimalStr("-10e-0")).toBe("-10");
    expect(scientificStrToDecimalStr("-1.0e-0")).toBe("-1");
    expect(scientificStrToDecimalStr("-1.10e-0")).toBe("-1.1");
    expect(scientificStrToDecimalStr("-1.e-0")).toBe("-1");
    expect(scientificStrToDecimalStr(".10e-0")).toBe("0.1");
    expect(scientificStrToDecimalStr("00.0010e-0")).toBe("0.001");
  });
  it("negative power", () => {
    expect(scientificStrToDecimalStr("0100e-2")).toBe("1");
    expect(scientificStrToDecimalStr("0100e-4")).toBe("0.01");
    expect(scientificStrToDecimalStr("010.1e-3")).toBe("0.0101");
    expect(scientificStrToDecimalStr("-010.1e-3")).toBe("-0.0101");
    expect(scientificStrToDecimalStr("09.1e-51")).toBe(`0.${"0".repeat(50)}91`);
  });
  it("positive power", () => {
    expect(scientificStrToDecimalStr("01e2")).toBe("100");
    expect(scientificStrToDecimalStr("-01e2")).toBe("-100");
    expect(scientificStrToDecimalStr("09.1e51")).toBe(`91${"0".repeat(50)}`);
  });
});