group_fixtures.ex

# test/support/fixtures/group_fixtures.exs

defmodule TestApp.GroupFixtures do
  @doc """
  Generate groups.
  """
  def group_fixtures() do
    [
      {"AE Group 1", "UAE", 10},
      {"AE Group 2", "UAE", 30},
      {"AE Group 3", "UAE", 35},
      {"AE Group 4", "UAE", 50},
      {"UK Group 1", "UK", 8},
      {"UK Group 2", "UK", 30},
      {"UK Group 3", "UK", 38},
      {"UK Group 4", "UK", 52}
    ]
    |> Enum.each(fn {name, region, score} ->
      TestApp.Groups.create_group(%{name: name, region: region, score: score})
    end)
  end
end

groups_test.exs

# test/groups_test.exs

defmodule TestApp.GroupsTest do
  use TestApp.DataCase, async: true

  alias TestApp.Groups

  import TestApp.GroupFixtures

  setup do
    group_fixtures()
  end

  defp assert_ranked(results, expected) do
    assert Enum.map(results, fn group ->
             {group.group_rank, group.name, group.region, group.score}
           end) ==
             expected
  end

  describe "list_groups/2" do
    test "return the full list ranked" do
      assert_ranked(
        Groups.list_groups(),
        [
          {1, "UK Group 4", "UK", 52},
          {2, "AE Group 4", "UAE", 50},
          {3, "UK Group 3", "UK", 38},
          {4, "AE Group 3", "UAE", 35},
          {5, "AE Group 2", "UAE", 30},
          {6, "UK Group 2", "UK", 30},
          {7, "AE Group 1", "UAE", 10},
          {8, "UK Group 1", "UK", 8}
        ]
      )
    end

    test "return UAE region ranked" do
      assert_ranked(
        Groups.list_groups("UAE"),
        [
          {1, "AE Group 4", "UAE", 50},
          {2, "AE Group 3", "UAE", 35},
          {3, "AE Group 2", "UAE", 30},
          {4, "AE Group 1", "UAE", 10}
        ]
      )
    end

    test "return UK region ranked" do
      assert_ranked(
        Groups.list_groups("UK"),
        [
          {1, "UK Group 4", "UK", 52},
          {2, "UK Group 3", "UK", 38},
          {3, "UK Group 2", "UK", 30},
          {4, "UK Group 1", "UK", 8}
        ]
      )
    end

    test "return search result with correct rank for UAE" do
      assert_ranked(
        Groups.list_groups("UAE", "Group 4"),
        [
          {1, "AE Group 4", "UAE", 50}
        ]
      )
    end

    test "return search result with correct rank for UK" do
      assert_ranked(
        Groups.list_groups("UK", "Group 3"),
        [
          {2, "UK Group 3", "UK", 38}
        ]
      )
    end

    test "return search result with correct rank for full list" do
      assert_ranked(
        Groups.list_groups(nil, "Group 3"),
        [
          {3, "UK Group 3", "UK", 38},
          {4, "AE Group 3", "UAE", 35}
        ]
      )
    end
  end
end