ExUnit Part 2

Section

defmodule Parent.Child1 do
  def function1() do
    "a1"
  end

  def function2() do
    "a2"
  end
end

defmodule Parent.Child2 do
  @my_attr "hello"

  def hello do
    @my_attr
  end

  def function3() do
    "b1"
  end

  def function3() do
    "b2"
  end
end

defmodule MainApplication do
  import Parent.Child1
  import Parent.Child2

  def main() do
    hello()
  end
end

MainApplication.main()

Web App + Mobile App

flowchart
Server --html--> Client
Server --> LiveViewNative

flowchart
LiveViewNative --bundle--> Android
LiveViewNative --bundle--> IOS
Android --> PS[Play Store]
IOS --> AS[App Store]

ExUnit Part 2

defmodule Double do
  def double(integer) do
    "something"
  end
end

ExUnit.start(auto_run: false)

defmodule DoubleTest do
  use ExUnit.Case

  setup do
    [key: "value"]
  end

  test "double/1", %{key: value} do
    # 3As
    IO.inspect(value)

    # IO.inspect(info)

    # # Arrange
    # random_integer = Enum.random(1..10)
    # # Act
    # result = Double.double(random_integer)
    # # Assert
    # assert result == random_integer * 2
  end

  # End To End
end

ExUnit.run()

defmodule Double do
  def double(list) do
    Enum.shuffle(list ++ list)
  end
end

ExUnit.start(auto_run: false)

defmodule DoubleTest do
  use ExUnit.Case

  @products [
    1,
    2,
    3
  ]

  test "double/1" do
    assert Enum.filter(@products, fn product -> product == 1 or product == 2 end) == [1, 2]
  end
end

ExUnit.run()

# {key, value} = [key: "value"]

[key: value] = [key: "1"]
IO.puts(value)

[name: value] = [name: "2"]
value

filters = [name: "Laptop"]
filters[:name]

defmodule Products do
  def filter(products, {key, value}) do
    IO.inspect(filters)
  end
end

keyword_list = [key: "value"]
my_products = %{name: "Laptop", category: :tech, price: 100}

Products.filter(my_products, keyword_list)