text: import { Point } from "../point.class";
  import { LineHelper } from "./linehelper.class";
  
  describe("LineHelper", () => {
    it("should return a diagonal line from (0,0) to (10,10)", () => {
      const SUT = new LineHelper();
  
      const from = new Point(0, 0);
      const to = new Point(10, 10);
  
      const expected: Point[] = [];
      for (let idx = 0; idx <= to.x; ++idx) {
        expected.push(new Point(idx, idx));
      }
      const result = SUT.straightLine(from, to);
      expect(result.length).toBe(expected.length);
      for (let idx = 0; idx < result.length; ++idx) {
        expect(result[idx]).toEqual(expected[idx]);
      }
    });
  
    it("should return a diagonal line from (10,10) to (0,0)", () => {
      const SUT = new LineHelper();
  
      const from = new Point(10, 10);
      const to = new Point(0, 0);
  
      const expected: Point[] = [];
      for (let idx = 10; idx >= to.x; --idx) {
        expected.push(new Point(idx, idx));
      }
      const result = SUT.straightLine(from, to);
      expect(result.length).toBe(expected.length);
      for (let idx = 0; idx < result.length; ++idx) {
        expect(result[idx]).toEqual(expected[idx]);
      }
    });
  });
  