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Add resistor-color-duo (#347)
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‎config.json‎

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"prerequisites": [],
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"difficulty": 1
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},
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{
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"slug": "resistor-color-duo",
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"name": "Resistor Color Duo",
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"uuid": "02daf508-b4d8-47c9-a9c7-f26e7032258c",
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"practices": [],
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"prerequisites": [],
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"difficulty": 1
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},
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{
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"slug": "leap",
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"name": "Leap",

‎exercises/practice/resistor-color-duo/.docs/instructions.md‎

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# Instructions
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If you want to build something using a Raspberry Pi, you'll probably use _resistors_.
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For this exercise, you need to know two things about them:
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- Each resistor has a resistance value.
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- Resistors are small - so small in fact that if you printed the resistance value on them, it would be hard to read.
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To get around this problem, manufacturers print color-coded bands onto the resistors to denote their resistance values.
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Each band has a position and a numeric value.
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The first 2 bands of a resistor have a simple encoding scheme: each color maps to a single number.
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For example, if they printed a brown band (value 1) followed by a green band (value 5), it would translate to the number 15.
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In this exercise you are going to create a helpful program so that you don't have to remember the values of the bands.
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The program will take color names as input and output a two digit number, even if the input is more than two colors!
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The band colors are encoded as follows:
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- black: 0
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- brown: 1
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- red: 2
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- orange: 3
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- yellow: 4
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- green: 5
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- blue: 6
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- violet: 7
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- grey: 8
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- white: 9
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From the example above:
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brown-green should return 15, and
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brown-green-violet should return 15 too, ignoring the third color.

‎exercises/practice/resistor-color-duo/.meta/config.json‎

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{
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"authors": [
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"BNAndras"
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],
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"files": {
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"solution": [
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"zcl_resistor_color_duo.clas.abap"
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],
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"test": [
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"zcl_resistor_color_duo.clas.testclasses.abap"
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],
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"example": [
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".meta/zcl_resistor_color_duo.clas.abap"
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]
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},
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"blurb": "Convert color codes, as used on resistors, to a numeric value.",
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"source": "Maud de Vries, Erik Schierboom",
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"source_url": "https://github.com/exercism/problem-specifications/issues/1464"
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}

‎exercises/practice/resistor-color-duo/.meta/tests.toml‎

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# This is an auto-generated file.
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#
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# Regenerating this file via `configlet sync` will:
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# - Recreate every `description` key/value pair
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# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
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# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
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# - Preserve any other key/value pair
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#
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# As user-added comments (using the # character) will be removed when this file
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# is regenerated, comments can be added via a `comment` key.
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[ce11995a-5b93-4950-a5e9-93423693b2fc]
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description = "Brown and black"
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[7bf82f7a-af23-48ba-a97d-38d59406a920]
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description = "Blue and grey"
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[f1886361-fdfd-4693-acf8-46726fe24e0c]
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description = "Yellow and violet"
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[b7a6cbd2-ae3c-470a-93eb-56670b305640]
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description = "White and red"
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[77a8293d-2a83-4016-b1af-991acc12b9fe]
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description = "Orange and orange"
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[0c4fb44f-db7c-4d03-afa8-054350f156a8]
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description = "Ignore additional colors"
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[4a8ceec5-0ab4-4904-88a4-daf953a5e818]
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description = "Black and brown, one-digit"

‎exercises/practice/resistor-color-duo/.meta/zcl_resistor_color_duo.clas.abap‎

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CLASS zcl_resistor_color_duo DEFINITION
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PUBLIC
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FINAL
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CREATE PUBLIC.
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PUBLIC SECTION.
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METHODS value
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IMPORTING
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colors TYPE string_table
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RETURNING
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VALUE(result) TYPE i.
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PROTECTED SECTION.
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PRIVATE SECTION.
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METHODS color_code
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IMPORTING
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color TYPE string
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RETURNING
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VALUE(result) TYPE i.
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ENDCLASS.
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CLASS zcl_resistor_color_duo IMPLEMENTATION.
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METHOD value.
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DATA(color1) = colors[ 1 ].
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DATA(color2) = colors[ 2 ].
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result = color_code( color1 ) * 10 + color_code( color2 ).
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ENDMETHOD.
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METHOD color_code.
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CASE color.
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WHEN 'black'.
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result = 0.
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WHEN 'brown'.
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result = 1.
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WHEN 'red'.
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result = 2.
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WHEN 'orange'.
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result = 3.
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WHEN 'yellow'.
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result = 4.
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WHEN 'green'.
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result = 5.
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WHEN 'blue'.
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result = 6.
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WHEN 'violet'.
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result = 7.
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WHEN 'grey'.
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result = 8.
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WHEN 'white'.
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result = 9.
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ENDCASE.
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ENDMETHOD.
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ENDCLASS.

‎exercises/practice/resistor-color-duo/package.devc.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<abapGit version="v1.0.0" serializer="LCL_OBJECT_DEVC" serializer_version="v1.0.0">
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<asx:abap xmlns:asx="http://www.sap.com/abapxml" version="1.0">
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<asx:values>
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<DEVC>
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<CTEXT>Exercism: Resistor Color Duo</CTEXT>
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</DEVC>
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</asx:values>
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</asx:abap>
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</abapGit>

‎exercises/practice/resistor-color-duo/zcl_resistor_color_duo.clas.abap‎

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CLASS zcl_resistor_color_duo DEFINITION
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PUBLIC
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FINAL
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CREATE PUBLIC.
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PUBLIC SECTION.
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METHODS value
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IMPORTING
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colors TYPE string_table
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RETURNING
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VALUE(result) TYPE i.
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PROTECTED SECTION.
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PRIVATE SECTION.
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ENDCLASS.
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CLASS zcl_resistor_color_duo IMPLEMENTATION.
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METHOD value.
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"Implement solution
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ENDMETHOD.
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ENDCLASS.

‎exercises/practice/resistor-color-duo/zcl_resistor_color_duo.clas.testclasses.abap‎

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*"* use this source file for your ABAP unit test classes
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CLASS ltcl_resistor_color_duo DEFINITION FINAL FOR TESTING
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DURATION SHORT
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RISK LEVEL HARMLESS.
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PRIVATE SECTION.
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DATA cut TYPE REF TO zcl_resistor_color_duo.
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METHODS setup.
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METHODS:
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test_brown_and_black FOR TESTING,
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test_blue_and_grey FOR TESTING,
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test_yellow_and_violet FOR TESTING,
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test_white_and_red FOR TESTING,
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test_orange_and_orange FOR TESTING,
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test_ignore_additional_colors FOR TESTING,
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test_black_and_brown_one_digit FOR TESTING.
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ENDCLASS.
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CLASS ltcl_resistor_color_duo IMPLEMENTATION.
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METHOD setup.
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cut = NEW zcl_resistor_color_duo( ).
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ENDMETHOD.
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METHOD test_brown_and_black.
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DATA(colors) = VALUE string_table( ( `brown` ) ( `black` ) ).
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cl_abap_unit_assert=>assert_equals(
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act = cut->value( colors )
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exp = 10 ).
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ENDMETHOD.
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METHOD test_blue_and_grey.
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DATA(colors) = VALUE string_table( ( `blue` ) ( `grey` ) ).
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cl_abap_unit_assert=>assert_equals(
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act = cut->value( colors )
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exp = 68 ).
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ENDMETHOD.
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METHOD test_yellow_and_violet.
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DATA(colors) = VALUE string_table( ( `yellow` ) ( `violet` ) ).
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cl_abap_unit_assert=>assert_equals(
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act = cut->value( colors )
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exp = 47 ).
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ENDMETHOD.
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METHOD test_white_and_red.
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DATA(colors) = VALUE string_table( ( `white` ) ( `red` ) ).
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cl_abap_unit_assert=>assert_equals(
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act = cut->value( colors )
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exp = 92 ).
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ENDMETHOD.
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METHOD test_orange_and_orange.
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DATA(colors) = VALUE string_table( ( `orange` ) ( `orange` ) ).
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cl_abap_unit_assert=>assert_equals(
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act = cut->value( colors )
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exp = 33 ).
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ENDMETHOD.
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METHOD test_ignore_additional_colors.
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DATA(colors) = VALUE string_table( ( `green` ) ( `brown` ) ( `orange` ) ).
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cl_abap_unit_assert=>assert_equals(
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act = cut->value( colors )
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exp = 51 ).
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ENDMETHOD.
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METHOD test_black_and_brown_one_digit.
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DATA(colors) = VALUE string_table( ( `black` ) ( `brown` ) ).
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cl_abap_unit_assert=>assert_equals(
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act = cut->value( colors )
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exp = 1 ).
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ENDMETHOD.
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ENDCLASS.

‎exercises/practice/resistor-color-duo/zcl_resistor_color_duo.clas.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<abapGit version="v1.0.0" serializer="LCL_OBJECT_CLAS" serializer_version="v1.0.0">
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<asx:abap xmlns:asx="http://www.sap.com/abapxml" version="1.0">
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<asx:values>
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<VSEOCLASS>
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<CLSNAME>ZCL_RESISTOR_COLOR_DUO</CLSNAME>
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<LANGU>E</LANGU>
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<DESCRIPT>Exercism: Resistor Color Duo</DESCRIPT>
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<STATE>1</STATE>
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<CLSCCINCL>X</CLSCCINCL>
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<FIXPT>X</FIXPT>
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<UNICODE>X</UNICODE>
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<WITH_UNIT_TESTS>X</WITH_UNIT_TESTS>
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</VSEOCLASS>
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</asx:values>
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</asx:abap>
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</abapGit>

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