for (long x : POSITIVE_LONG_CANDIDATES) {
      int floor = LongMath.log10(x, FLOOR);
      boolean expectedSuccess = LongMath.pow(10, floor) == x;
      try {
        assertEquals(floor, LongMath.log10(x, UNNECESSARY));
        assertTrue(expectedSuccess);
      } catch (ArithmeticException e) {
        if (expectedSuccess) {
          failFormat("expected log10(%s, UNNECESSARY) = %s; got ArithmeticException", x, floor);
        }

    for (long x : POSITIVE_LONG_CANDIDATES) {
      int floor = LongMath.log10(x, FLOOR);
      boolean expectedSuccess = LongMath.pow(10, floor) == x;
      try {
        assertEquals(floor, LongMath.log10(x, UNNECESSARY));
        assertTrue(expectedSuccess);
      } catch (ArithmeticException e) {
        if (expectedSuccess) {
          failFormat("expected log10(%s, UNNECESSARY) = %s; got ArithmeticException", x, floor);
        }

		validateFunc    func(l certKeyLocation) error
		loc             certKeyLocation
		expectedSuccess bool
	}{
		{
			name: "validateCACert",
			files: certstestutil.PKIFiles{
				"ca.crt": caCert,
			},
			validateFunc:    validateCACert,
			loc:             certKeyLocation{caBaseName: "ca", baseName: "", uxName: "CA"},
			expectedSuccess: true,
		},
		{
			name: "validateCACertAndKey (files present)",

        BigInteger expectedResult = valueOf(a).add(valueOf(b));
        boolean expectedSuccess = fitsInInt(expectedResult);
        try {
          assertEquals(a + b, IntMath.checkedAdd(a, b));
          assertTrue(expectedSuccess);
        } catch (ArithmeticException e) {
          assertFalse(expectedSuccess);
        }
      }
    }
  }

  @AndroidIncompatible // slow