07-Jan-2022 15:57:38

bank_test():
  MATLAB/Octave version 9.8.0.1380330 (R2020a) Update 2
  Test bank().

ch_is_digit_test():
  ch_is_digit() is TRUE if a character represents a digit.

   C      ch_is_digit(C)

  "0"            1
  "1"            1
  "2"            1
  "3"            1
  "4"            1
  "5"            1
  "6"            1
  "7"            1
  "8"            1
  "9"            1
  "X"            0
  "?"            0
  " "            0

ch_to_digit_test():
  ch_to_digit(): character -> decimal digit

         1  "0"         0
         2  "1"         1
         3  "2"         2
         4  "3"         3
         5  "4"         4
         6  "5"         5
         7  "6"         6
         8  "7"         7
         9  "8"         8
        10  "9"         9
        11  "X"        -1
        12  "?"        -1
        13  " "        -1

s_to_digits_test():
  s_to_digits(): string -> digit vector

  Test string: "34E94-70.6"

  Extracted 5 digits:

     1:      3
     2:      4
     3:      9
     4:      4
     5:      7

  Test string: "34E94-70.6"

  Extracted 7 digits:

     1:      3
     2:      4
     3:      9
     4:      4
     5:      7
     6:      0
     7:      6

bank_check_digit_calculate_test():
  bank_check_digit_calculate() calculates the 9-th digit
  (the check digit) of a bank checksum.

  Check digit of "123-456-780" is 0, expecting 0
  Check digit of "123 456 78" is 0, expecting 0
  Check digit of "323-371-076" is 6, expecting 6
  Check digit of "87654321" is 2, expecting 2
  Check digit of "13579864" is 3, expecting 3

bank_is_valid_test()
  bank_is_valid() reports whether a bank checksum is valid.

  Validity of "323-371-076" is 1, expecting 1
  Validity of "323-371-576" is 0, expecting 0
  Validity of "123 456 780" is 1, expecting 1
  Validity of "123 456 789" is 0, expecting 0

bank_test():
  Normal end of execution.

07-Jan-2022 15:57:38