import { testing } from "../common/Testing";
import { IntegerRange } from "./Range";

testing("Range", test => {
  test.case("can work with proportional values", check => {
    var range = new Range(1, 5);

    function checkProportional(range: Range, value1: number, value2: number) {
      check.equals(range.getProportional(value1), value2);
      check.equals(range.getReverseProportional(value2), value1);
    }

    checkProportional(range, 0, 1);
    checkProportional(range, 1, 5);
    checkProportional(range, 0.5, 3);
    checkProportional(range, 0.4, 2.6);

    check.equals(range.getProportional(-0.25), 1);
    check.equals(range.getProportional(1.8), 5);

    check.equals(range.getReverseProportional(0), 0);
    check.equals(range.getReverseProportional(6), 1);
  });
});

testing("IntegerRange", test => {
  test.case("can work with proportional values", check => {
    var range = new IntegerRange(1, 5);

    check.equals(range.getProportional(0), 1);
    check.equals(range.getProportional(0.1), 1);
    check.equals(range.getProportional(0.2), 2);
    check.equals(range.getProportional(0.45), 3);
    check.equals(range.getProportional(0.5), 3);
    check.equals(range.getProportional(0.75), 4);
    check.equals(range.getProportional(0.8), 5);
    check.equals(range.getProportional(0.99), 5);
    check.equals(range.getProportional(1), 5);

    check.equals(range.getReverseProportional(1), 0);
    check.equals(range.getReverseProportional(2), 0.2);
    check.equals(range.getReverseProportional(3), 0.4);
    check.equals(range.getReverseProportional(4), 0.6);
    check.equals(range.getReverseProportional(5), 0.8);
  });
});