import { PushTransform } from "./push";
import * as YAML from "yaml";
import { DEFAULT_YAML_CONFIG } from "../config";

describe(PushTransform.name, () => {
  describe("given valid yaml", () => {
    it("should add value to array", () => {
      const yaml = YAML.stringify({ foo: { baz: ["firstVal"] } });
      const result = new PushTransform(
        { path: "foo:baz", value: "test" },
        DEFAULT_YAML_CONFIG
      ).transform(yaml);

      expect(YAML.parse(result)).toEqual({
        foo: {
          baz: ["firstVal", "test"],
        },
      });
    });
    it("should create array", () => {
      const yaml = YAML.stringify({ foo: {} });
      const result = new PushTransform(
        { path: "foo:baz", value: "test" },
        DEFAULT_YAML_CONFIG
      ).transform(yaml);

      expect(YAML.parse(result)).toEqual({
        foo: {
          baz: ["test"],
        },
      });
    });
  });
  describe("given invalid yaml", () => {
    it("should nnot modify value", () => {
      const result = new PushTransform(
        { path: "foo:baz", value: "test" },
        DEFAULT_YAML_CONFIG
      ).transform("bar");
      expect(YAML.parse(result)).toBe("bar");
    });
  });
});