anchor.diff:    Expect.isTrue(max(-0.0, -inf) is double);
   }
   
  -testMax2() {
  -  var inf = double.INFINITY;
  -  var nan = double.NAN;
  -
  +testMax3() {
     Expect.isFalse(max(-0.0, 0.0).isNegative);
     Expect.isFalse(max(-0.0, 0).isNegative);
     Expect.isTrue(max(-0.0, -0.0).isNegative);
  
positive.code: import "package:expect/expect.dart";
  import 'dart:math';
  
  testMin() {
    testMin1();
    testMin2();
  }
  
  testMin1() {
  
negative.code: 
    // Test matrix:
    // NaN, infinity, 499.0, 499, 0.0, 0, -0.0, -499.0, -499, -infinity.
  
    Expect.isTrue(max(nan, nan).isNaN);
    Expect.isTrue(max(nan, -inf).isNaN);
  