towerops/test/towerops_web/live/site_live/show_helpers_test.exs

defmodule ToweropsWeb.SiteLive.ShowHelpersTest do
  use ExUnit.Case, async: true

  alias ToweropsWeb.SiteLive.Show

  describe "qoe_color/1 and qoe_bg/1" do
    test "nil is gray" do
      assert String.contains?(Show.qoe_color(nil), "gray")
      assert String.contains?(Show.qoe_bg(nil), "gray")
    end

    test "high score green" do
      assert String.contains?(Show.qoe_color(9.0), "green")
      assert String.contains?(Show.qoe_bg(9.0), "green")
    end

    test "mid score yellow" do
      assert String.contains?(Show.qoe_color(7.0), "yellow")
      assert String.contains?(Show.qoe_bg(7.0), "yellow")
    end

    test "low score red" do
      assert String.contains?(Show.qoe_color(3.0), "red")
      assert String.contains?(Show.qoe_bg(3.0), "red")
    end
  end

  describe "capacity_bar_color/1" do
    test "nil is gray" do
      assert "bg-gray-300" == Show.capacity_bar_color(nil)
    end

    test "high score green" do
      assert "bg-green-500" == Show.capacity_bar_color(80)
    end

    test "mid score yellow" do
      assert "bg-yellow-500" == Show.capacity_bar_color(50)
    end

    test "low score red" do
      assert "bg-red-500" == Show.capacity_bar_color(20)
    end
  end

  describe "status_dot_class/1" do
    test "up/down/other" do
      assert "bg-green-500" == Show.status_dot_class(:up)
      assert "bg-red-500" == Show.status_dot_class(:down)
      assert "bg-gray-400" == Show.status_dot_class(:unknown)
    end
  end

  describe "time_ago/1" do
    test "nil returns em-dash" do
      assert "—" == Show.time_ago(nil)
    end

    test "returns a string ending in 'ago' for past datetimes" do
      dt = DateTime.add(DateTime.utc_now(), -60, :second)
      assert String.ends_with?(Show.time_ago(dt), "ago")
    end
  end

  describe "format_response_time/1" do
    test "nil returns em-dash" do
      assert "—" == Show.format_response_time(nil)
    end

    test "sub-ms shows <1ms" do
      assert "<1ms" == Show.format_response_time(0.5)
    end

    test "normal ms rounded" do
      assert "42ms" == Show.format_response_time(41.7)
      assert "100ms" == Show.format_response_time(100)
    end

    test "non-number returns em-dash" do
      assert "—" == Show.format_response_time("abc")
      assert "—" == Show.format_response_time(:atom)
    end
  end

  describe "change_size_label/1 + change_size_color/1" do
    test "Small / gray under 100" do
      assert "Small" == Show.change_size_label(50)
      assert String.contains?(Show.change_size_color(50), "gray")
    end

    test "Medium / yellow 100-499" do
      assert "Medium" == Show.change_size_label(200)
      assert String.contains?(Show.change_size_color(200), "yellow")
    end

    test "Large / red 500+" do
      assert "Large" == Show.change_size_label(500)
      assert String.contains?(Show.change_size_color(1000), "red")
    end
  end

  describe "insight_urgency_class/1 + insight_urgency_icon/1" do
    test "critical maps to red + warning triangle" do
      assert String.contains?(Show.insight_urgency_class("critical"), "red")
      assert "hero-exclamation-triangle" == Show.insight_urgency_icon("critical")
    end

    test "warning maps to yellow + warning circle" do
      assert String.contains?(Show.insight_urgency_class("warning"), "yellow")
      assert "hero-exclamation-circle" == Show.insight_urgency_icon("warning")
    end

    test "other maps to blue + info circle" do
      assert String.contains?(Show.insight_urgency_class("info"), "blue")
      assert "hero-information-circle" == Show.insight_urgency_icon("info")
    end
  end

  describe "alert_severity/1" do
    test "maps known alert types" do
      assert "critical" == Show.alert_severity(:device_down)
      assert "info" == Show.alert_severity(:device_up)
      assert "warning" == Show.alert_severity(:other)
    end
  end

  describe "format_capacity/1" do
    test "Gbps/Mbps/Kbps/bps transitions" do
      assert "1.5 Gbps" == Show.format_capacity(1_500_000_000)
      assert "50.0 Mbps" == Show.format_capacity(50_000_000)
      assert "5.0 Kbps" == Show.format_capacity(5_000)
      assert "500 bps" == Show.format_capacity(500)
    end

    test "non-number returns dash" do
      assert "-" == Show.format_capacity(nil)
      assert "-" == Show.format_capacity("abc")
    end
  end

  describe "utilization_bar_color/1 and utilization_text_color/1" do
    test "90%+ red" do
      assert "bg-red-500" == Show.utilization_bar_color(95)
      assert String.contains?(Show.utilization_text_color(95), "red")
    end

    test "70-90 yellow" do
      assert "bg-yellow-500" == Show.utilization_bar_color(80)
      assert String.contains?(Show.utilization_text_color(80), "yellow")
    end

    test "under 70 green" do
      assert "bg-green-500" == Show.utilization_bar_color(40)
      assert String.contains?(Show.utilization_text_color(40), "green")
    end
  end
end