function checkMin(c) {
  assertEquals(favor.TIE, c.min([0, 'A'], [0, 'A']));
  assertEquals(favor.TIE, c.min(['', ''], ['', '']));
  assertEquals(favor.TIE, c.min([888.88, 888.88], [888.88, 888.88]));
  assertEquals(favor.TIE, c.min(['ab', 'ab'], ['ab', 'ab']));

  assertEquals(favor.RHS, c.min([1, 'A'], [0, 'Z']));
  assertEquals(favor.LHS, c.min([0, 999], [1, 888]));
  assertEquals(favor.RHS, c.min([1, 1], [1, 0]));
  assertEquals(favor.LHS, c.min(['A', 'D'], ['A', 'Z']));
  assertEquals(favor.RHS, c.min([888.88, 999], [888.87, 1]));
  assertEquals(favor.LHS, c.min([888.87, 999], [888.88, 1]));
  assertEquals(favor.RHS, c.min([888.88, 999], [888.88, 1]));
  assertEquals(favor.LHS, c.min([1, 888.87], [1, 888.88]));

  assertEquals(favor.RHS, c.min(['b', 1], ['a', 999]));
  assertEquals(favor.LHS, c.min(['a', 999], ['b', 0]));
  assertEquals(favor.RHS, c.min(['b', 'b'], ['b', 'a']));
  assertEquals(favor.LHS, c.min(['a', 'a'], ['a', 'b']));
  assertEquals(favor.RHS, c.min(['bbb', 'bba'], ['bba', 'bbb']));
  assertEquals(favor.LHS, c.min(['bba', 'bbb'], ['bbb', 'bba']));
  assertEquals(favor.RHS, c.min(['bbb', 'bbc'], ['bbb', 'bbb']));
  assertEquals(favor.LHS, c.min(['bba', 'bbb'], ['bba', 'bbc']));
}
Checks the min() method of the given comparator.
@param {!lf.index.MultiKeyComparator} c