import { RemoveItemTransform } from "./remove-item";
import * as YAML from "yaml";
import { DEFAULT_YAML_CONFIG } from "../config";

describe(RemoveItemTransform.name, () => {
  describe("given valid yaml", () => {
    describe("given array does exist", () => {
      it("should remove item from array", () => {
        const yaml = YAML.stringify({ foo: { bar: ["test", "2"] } });
        const result = new RemoveItemTransform(
          { path: "foo:bar", value: "test" },
          DEFAULT_YAML_CONFIG
        ).transform(yaml);

        expect(YAML.parse(result)).toEqual({
          foo: {
            bar: ["2"],
          },
        });
      });
    });
    describe("given array does not exist", () => {
      it("should leave value unchanged", () => {
        const yaml = YAML.stringify({ foo: {} });
        const result = new RemoveItemTransform(
          { path: "foo:bar", value: "test" },
          DEFAULT_YAML_CONFIG
        ).transform(yaml);

        expect(YAML.parse(result)).toEqual({
          foo: {},
        });
      });
    });
  });

  describe("given invalid yaml", () => {
    it("should leave value untouched", () => {
      const result = YAML.parse(
        new RemoveItemTransform(
          { path: "foo:bar", value: "fudge" },
          DEFAULT_YAML_CONFIG
        ).transform("bla")
      );

      expect(result).toBe("bla");
    });
  });
});