TypioType.test.ts

import { CastResult } from "./typings";
import { TypioType } from "./TypioType";

describe("TypioType tests", () => {
  it("when operator return false should return error withour operator error description", () => {
    const operator = (() => false) as any;
    operator.label = "oper1";
    const typ = new TypioType(
      [operator],
      (): CastResult<any> => {
        return {
          type: "success",
          value: "x",
        };
      },
    );
    const res = typ.cast("");
    expect(res).toEqual({
      type: "error",
      operator: operator.label,
      error: undefined,
      value: "x",
    });
  });
  it("when operator return true should return success with value", () => {
    const operator = (() => true) as any;
    operator.label = "oper1";
    const typ = new TypioType([operator], () => {
      return {
        type: "success",
        value: "x",
      };
    });
    const res = typ.cast("");

    expect(res).toEqual({
      type: "success",
      value: "x",
    });
  });
  it("when operator return string should return string should return type error with operator error", () => {
    const operator = (() => "error1") as any;
    operator.label = "oper1";
    const typ = new TypioType([operator], () => {
      return {
        type: "success",
        value: "x",
      };
    });
    const res = typ.cast("");
    expect(res).toEqual({
      type: "error",
      operator: operator.label,
      error: "error1",
      value: "x",
    });
  });
});