assertEquals(
              a == b || (Double.isNaN(a) && Double.isNaN(b)), DoubleMath.fuzzyEquals(a, b, zero));
        }
      }
    }
  }

  public void testFuzzyEqualsBadTolerance() {
    for (double tolerance : BAD_TOLERANCE_CANDIDATES) {
      assertThrows(IllegalArgumentException.class, () -> DoubleMath.fuzzyEquals(1, 2, tolerance));
    }
  }

  /*