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modbus

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Modbus library with TCP Master & Slave implementation.

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modbus test helper_test.exs
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test/helper_test.exs 

defmodule HelperTest do

  use ExUnit.Case

  alias Modbus.Helper



  test "bool_val test" do

    0x00 = Helper.bool_val(0)

    0xFF = Helper.bool_val(1)

  end



  test "byte_count test" do

    1 = Helper.byte_count(1)

    1 = Helper.byte_count(2)

    1 = Helper.byte_count(7)

    1 = Helper.byte_count(8)

    2 = Helper.byte_count(9)

    2 = Helper.byte_count(15)

    2 = Helper.byte_count(16)

    3 = Helper.byte_count(17)

  end



  test "bin2bitlist test" do

    {[1], <<>>} = Helper.bin2bitlist(1, <<0x13>>)

    {[1, 1], <<>>} = Helper.bin2bitlist(2, <<0x13>>)

    {[1, 1, 0], <<>>} = Helper.bin2bitlist(3, <<0x13>>)

    {[1, 1, 0, 0], <<>>} = Helper.bin2bitlist(4, <<0x13>>)

    {[1, 1, 0, 0, 1], <<>>} = Helper.bin2bitlist(5, <<0x13>>)

    {[1, 1, 0, 0, 1, 0], <<>>} = Helper.bin2bitlist(6, <<0x13>>)

    {[1, 1, 0, 0, 1, 0, 0], <<0xAA>>} = Helper.bin2bitlist(7, <<0x13, 0xAA>>)

    {[1, 1, 0, 0, 1, 0, 0, 0], <<>>} = Helper.bin2bitlist(8, <<0x13>>)

    {[1, 1, 0, 0, 1, 0, 0, 0, 1], <<>>} = Helper.bin2bitlist(9, <<0x13, 0x01>>)

    {[1, 1, 0, 0, 1, 0, 0, 0, 1], <<0xAA>>} = Helper.bin2bitlist(9, <<0x13, 0x01, 0xAA>>)

  end



  test "bin2registerlist test" do

    {[0x0102], <<>>} = Helper.bin2registerlist(1, <<0x01, 0x02>>)

    {[0x0102], <<0xAA>>} = Helper.bin2registerlist(1, <<0x01, 0x02, 0xAA>>)

    {[0x0102, 0x0304], <<>>} = Helper.bin2registerlist(2, <<0x01, 0x02, 0x03, 0x04>>)

    {[0x0102, 0x0304], <<0xAA>>} = Helper.bin2registerlist(2, <<0x01, 0x02, 0x03, 0x04, 0xAA>>)

  end

end