WIP - Katayuno - Bank OCR

ocr.rb

class OCR
  OCR_MAP = {
    " _ | ||_|" => 0,
    "     |  |" => 1,
    " _  _||_ " => 2,
    " _  _| _|" => 3,
    "   |_|  |" => 4,
    " _ |_  _|" => 5,
    " _ |_ |_|" => 6,
    " _   |  |" => 7,
    " _ |_||_|" => 8,
    " _ |_| _|" => 9
  }
  def self.do number_representation
    OCR_MAP[number_representation]
  end
end

ocr_spec.rb

require_relative '../ocr'

describe "OCR" do
  it "recognizes a 0" do
    zero = " _ " +
           "| |" +
           "|_|"
    # " _ | ||_|"

    number = OCR.do(zero)

    expect(number).to be(0)
  end

  it "recognizes a 1" do
    one = "   " +
          "  |" +
          "  |"
    # "     |  |"

    number = OCR.do(one)

    expect(number).to be(1)
  end

  it "recognizes a 2" do
    two = " _ " +
          " _|" +
          "|_ "
    # " _  _||_ "

  number = OCR.do(two)

  expect(number).to be(2)
  end

  it "recognizes a 3" do
    three = " _ " +
            " _|" +
            " _|"
    # " _  _| _|"

    number = OCR.do(three)

    expect(number).to be(3)
  end

  it "recognizes a 4" do
    four = "   " +
           "|_|" +
           "  |"
    # "   |_|  |"

    number = OCR.do(four)

    expect(number).to be(4)
  end

  it "recognizes a 5" do
    five = " _ " +
           "|_ " +
           " _|"
    # " _ |_  _|"

    number = OCR.do(five)

    expect(number).to be(5)
  end

  it "recognizes a 6" do
    six = " _ " +
          "|_ " +
          "|_|"
    # " _ |_ |_|"

    number = OCR.do(six)

    expect(number).to be(6)
  end

  it "recognizes a 7" do
    seven = " _ " +
            "  |" +
            "  |"
    # " _   |  |"

    number = OCR.do(seven)

    expect(number).to be(7)
  end

  it "recognizes a 8" do
    eight = " _ " +
            "|_|" +
            "|_|"
    # " _ |_||_|"

    number = OCR.do(eight)

    expect(number).to be(8)
  end

  it "recognizes a 9" do
    nine = " _ " +
           "|_|" +
           " _|"
    # " _ |_| _|"

    number = OCR.do(nine)

    expect(number).to be(9)
  end
end

  #   _  _     _  _  _  _  _
  # | _| _||_||_ |_   ||_||_|
  # ||_  _|  | _||_|  ||_| _|
  #

parser.rb

class Parser
  def self.parse entry
    ""
  end
end

parser_spec.rb

require_relative '../parser'

describe "Parser" do
  it "extracts individual digits from account number string" do
    account_number = "     _  _     _  _  _  _  _ " +
                     "   | _| _||_||_ |_   ||_||_|" +
                     "   ||_  _|  | _||_|  ||_| _|"

    parsed_account = Parser.parse(account_number)
    number_of_digits = parsed_account.size

    expect(number_of_digits).to be(9)
  end
end

  #   _  _     _  _  _  _  _
  # | _| _||_||_ |_   ||_||_|
  # ||_  _|  | _||_|  ||_| _|
  #

project_tree

.
├── ocr.rb
├── parser.rb
└── spec
    ├── ocr_spec.rb
    ├── parser_spec.rb
    └── spec_helper.rb