format

lib/aprsme_web/aprs_symbol.ex

@@ -1,13 +1,13 @@
 defmodule AprsmeWeb.AprsSymbol do
   @moduledoc """
   Shared library for APRS symbol handling and rendering.
-  
+
   This module provides centralized functions for:
   - Symbol table and code normalization
   - Sprite file mapping
   - Symbol positioning calculations
   - HTML generation for symbols
-  
+
   All APRS symbol logic should use this module to ensure consistency
   across the application.
   """
@@ -15,9 +15,9 @@ defmodule AprsmeWeb.AprsSymbol do
   @doc """
   Gets sprite information for a given symbol table and code.
   Returns a map with sprite_file, background_position, and background_size.
-  
+
   ## Examples
-  
+
       iex> AprsmeWeb.AprsSymbol.get_sprite_info("/", "_")
       %{
         sprite_file: "/aprs-symbols/aprs-symbols-128-0@2x.png",
@@ -34,21 +34,22 @@ defmodule AprsmeWeb.AprsSymbol do
       # Normal symbol table processing
       symbol_table = normalize_symbol_table(symbol_table)
       symbol_code = normalize_symbol_code(symbol_code)
-      
+
       # Map symbol table to sprite file ID
       table_id = get_table_id(symbol_table)
-      
+
       sprite_file = "/aprs-symbols/aprs-symbols-128-#{table_id}@2x.png"
 
       # Get symbol position using ASCII-based calculation
-      symbol_code_ord = symbol_code
+      symbol_code_ord =
-                        |> String.to_charlist()
+        symbol_code
-                        |> List.first()
+        |> String.to_charlist()
-                        |> (fn c -> if is_integer(c), do: c, else: 63 end).()
+        |> List.first()
-      
+        |> then(fn c -> if is_integer(c), do: c, else: 63 end)
+
       index = symbol_code_ord - 33
       safe_index = max(0, min(index, 93))
-      
+
       # Calculate positioning for 16-column grid
       column = rem(safe_index, 16)
       row = div(safe_index, 16)
@@ -72,16 +73,17 @@ defmodule AprsmeWeb.AprsSymbol do
     # Check which table to use based on the symbol code
     table_id = get_overlay_base_table_id(base_symbol_code)
     sprite_file = "/aprs-symbols/aprs-symbols-128-#{table_id}@2x.png"
-    
+
     # Get position of the base symbol in the appropriate table
-    base_symbol_ord = base_symbol_code
+    base_symbol_ord =
-                      |> String.to_charlist()
+      base_symbol_code
-                      |> List.first()
+      |> String.to_charlist()
-                      |> (fn c -> if is_integer(c), do: c, else: 63 end).()
+      |> List.first()
-    
+      |> then(fn c -> if is_integer(c), do: c, else: 63 end)
+
     index = base_symbol_ord - 33
     safe_index = max(0, min(index, 93))
-    
+
     # Calculate positioning for 16-column grid
     column = rem(safe_index, 16)
     row = div(safe_index, 16)
@@ -104,15 +106,21 @@ defmodule AprsmeWeb.AprsSymbol do
     # Most overlay symbols are in the alternate table (1)
     case base_symbol_code do
       # Digipeater symbols are often in the alternate table (1) and have colored backgrounds
-      "#" -> "1"  # Digipeater - green star background
+      # Digipeater - green star background
-      "a" -> "1"  # Diamond shape - APRS overlay symbol (alternate table)
+      "#" -> "1"
-      "A" -> "1"  # Square shape - APRS overlay symbol (alternate table)
+      # Diamond shape - APRS overlay symbol (alternate table)
-      "&" -> "1"  # Diamond shape - alternate table
+      "a" -> "1"
-      ">" -> "1"  # Arrow symbols
+      # Square shape - APRS overlay symbol (alternate table)
+      "A" -> "1"
+      # Diamond shape - alternate table
+      "&" -> "1"
+      # Arrow symbols
+      ">" -> "1"
       "<" -> "1"
       "^" -> "1"
       "v" -> "1"
-      "i" -> "1"  # Black square background - alternate table
+      # Black square background - alternate table
+      "i" -> "1"
       # Most other symbols that can be overlaid are in the alternate table
       _ -> "1"
     end
@@ -125,16 +133,17 @@ defmodule AprsmeWeb.AprsSymbol do
   def get_overlay_character_sprite_info(overlay_char) do
     # Use overlay table (table 2) for the overlay character
     sprite_file = "/aprs-symbols/aprs-symbols-128-2@2x.png"
-    
+
     # Get position of the overlay character in the overlay table
-    overlay_char_ord = overlay_char
+    overlay_char_ord =
-                      |> String.to_charlist()
+      overlay_char
-                      |> List.first()
+      |> String.to_charlist()
-                      |> (fn c -> if is_integer(c), do: c, else: 63 end).()
+      |> List.first()
-    
+      |> then(fn c -> if is_integer(c), do: c, else: 63 end)
+
     index = overlay_char_ord - 33
     safe_index = max(0, min(index, 93))
-    
+
     # Calculate positioning for 16-column grid
     column = rem(safe_index, 16)
     row = div(safe_index, 16)
@@ -150,9 +159,9 @@ defmodule AprsmeWeb.AprsSymbol do
 
   @doc """
   Normalizes a symbol table identifier.
-  
+
   ## Examples
-  
+
       iex> AprsmeWeb.AprsSymbol.normalize_symbol_table("/")
       "/"
       
@@ -172,9 +181,9 @@ defmodule AprsmeWeb.AprsSymbol do
 
   @doc """
   Normalizes a symbol code.
-  
+
   ## Examples
-  
+
       iex> AprsmeWeb.AprsSymbol.normalize_symbol_code("_")
       "_"
       
@@ -190,9 +199,9 @@ defmodule AprsmeWeb.AprsSymbol do
 
   @doc """
   Maps a symbol table to its sprite file ID.
-  
+
   ## Examples
-  
+
       iex> AprsmeWeb.AprsSymbol.get_table_id("/")
       "0"
       
@@ -204,59 +213,64 @@ defmodule AprsmeWeb.AprsSymbol do
   """
   def get_table_id(symbol_table) do
     case symbol_table do
-      "/" -> "0"    # Primary table
+      # Primary table
-      "\\" -> "1"   # Alternate table
+      "/" -> "0"
-      "]" -> "2"    # Overlay table (A-Z, 0-9)
+      # Alternate table
-      _ -> "0"      # Default to primary table
+      "\\" -> "1"
+      # Overlay table (A-Z, 0-9)
+      "]" -> "2"
+      # Default to primary table
+      _ -> "0"
     end
   end
 
   @doc """
   Renders an APRS symbol as HTML for use in Leaflet markers.
   Returns HTML string that can be used as marker content.
-  
+
   ## Examples
-  
+
       iex> AprsmeWeb.AprsSymbol.render_marker_html("/", "_", "W1AW")
       "<div style=\"position: relative; width: 32px; height: 32px; display: flex; align-items: center;\">..."
   """
   def render_marker_html(symbol_table, symbol_code, callsign \\ nil, size \\ 32) do
     sprite_info = get_sprite_info(symbol_table, symbol_code)
-    
+
     # Check if this is an overlay symbol
     is_overlay = symbol_table && String.match?(symbol_table, ~r/^[A-Z0-9]$/)
-    
+
-    symbol_html = if is_overlay do
+    symbol_html =
-      # For overlay symbols, we need both the base symbol background and the overlay character
+      if is_overlay do
-      overlay_sprite_info = get_overlay_character_sprite_info(symbol_table)
+        # For overlay symbols, we need both the base symbol background and the overlay character
-      
+        overlay_sprite_info = get_overlay_character_sprite_info(symbol_table)
-      """
+
-      <div style="
+        """
-        position: relative;
+        <div style="
-        width: #{size}px;
+          position: relative;
-        height: #{size}px;
+          width: #{size}px;
-        background-image: url(#{overlay_sprite_info.sprite_file}), url(#{sprite_info.sprite_file});
+          height: #{size}px;
-        background-position: #{overlay_sprite_info.background_position}, #{sprite_info.background_position};
+          background-image: url(#{overlay_sprite_info.sprite_file}), url(#{sprite_info.sprite_file});
-        background-size: #{overlay_sprite_info.background_size}, #{sprite_info.background_size};
+          background-position: #{overlay_sprite_info.background_position}, #{sprite_info.background_position};
-        background-repeat: no-repeat, no-repeat;
+          background-size: #{overlay_sprite_info.background_size}, #{sprite_info.background_size};
-        image-rendering: pixelated;
+          background-repeat: no-repeat, no-repeat;
-      " title="#{symbol_table}#{symbol_code}">
+          image-rendering: pixelated;
-      </div>
+        " title="#{symbol_table}#{symbol_code}">
-      """
+        </div>
-    else
+        """
-      """
+      else
-      <div style="
+        """
-        width: #{size}px;
+        <div style="
-        height: #{size}px;
+          width: #{size}px;
-        background-image: url(#{sprite_info.sprite_file});
+          height: #{size}px;
-        background-position: #{sprite_info.background_position};
+          background-image: url(#{sprite_info.sprite_file});
-        background-size: #{sprite_info.background_size};
+          background-position: #{sprite_info.background_position};
-        background-repeat: no-repeat;
+          background-size: #{sprite_info.background_size};
-        image-rendering: pixelated;
+          background-repeat: no-repeat;
-      " title="#{symbol_table}#{symbol_code}"></div>
+          image-rendering: pixelated;
-      """
+        " title="#{symbol_table}#{symbol_code}"></div>
-    end
+        """
-    
+      end
+
     if callsign do
       """
       <div style="position: relative; width: #{size}px; height: #{size}px; display: flex; align-items: center;">
@@ -289,23 +303,23 @@ defmodule AprsmeWeb.AprsSymbol do
   @doc """
   Renders an APRS symbol as a style string for use in templates.
   Returns a CSS style string that can be used directly in HTML.
-  
+
   ## Examples
-  
+
       iex> AprsmeWeb.AprsSymbol.render_style("/", "_", 32)
       "width: 32px; height: 32px; background-image: url(/aprs-symbols/aprs-symbols-128-0@2x.png); ..."
   """
   def render_style(symbol_table, symbol_code, size \\ 32) do
     sprite_info = get_sprite_info(symbol_table, symbol_code)
-    
+
     "width: #{size}px; height: #{size}px; background-image: url(#{sprite_info.sprite_file}); background-position: #{sprite_info.background_position}; background-size: #{sprite_info.background_size}; background-repeat: no-repeat; image-rendering: pixelated; opacity: 1.0; display: inline-block; vertical-align: middle; margin-bottom: -6px;"
   end
 
   @doc """
   Extracts symbol information from a packet with fallbacks.
-  
+
   ## Examples
-  
+
       iex> AprsmeWeb.AprsSymbol.extract_from_packet(%{symbol_table_id: "/", symbol_code: "_"})
       {"/", "_"}
       
@@ -315,7 +329,7 @@ defmodule AprsmeWeb.AprsSymbol do
   def extract_from_packet(packet) do
     symbol_table_id = get_packet_field(packet, :symbol_table_id, "/")
     symbol_code = get_packet_field(packet, :symbol_code, ">")
-    
+
     {symbol_table_id, symbol_code}
   end
 
@@ -329,4 +343,4 @@ defmodule AprsmeWeb.AprsSymbol do
       Map.get(data_extended, to_string(field)) ||
       default
   end
-end
+end

lib/aprsme_web/live/components/symbol_renderer.ex

@@ -91,7 +91,6 @@ defmodule AprsmeWeb.SymbolRenderer do
     AprsmeWeb.AprsSymbol.get_sprite_info(symbol_table, symbol_code)
   end
 
-
   @doc """
   Renders an APRS symbol for use in Leaflet markers.
   Returns HTML string that can be used as marker content.

lib/aprsme_web/live/info_live/show.ex

@@ -4,8 +4,8 @@ defmodule AprsmeWeb.InfoLive.Show do
   use Gettext, backend: AprsmeWeb.Gettext
 
   alias Aprsme.Packets
-  alias AprsmeWeb.MapLive.PacketUtils
   alias AprsmeWeb.AprsSymbol
+  alias AprsmeWeb.MapLive.PacketUtils
 
   @neighbor_radius_km 10
   @neighbor_limit 10
@@ -326,14 +326,14 @@ defmodule AprsmeWeb.InfoLive.Show do
   def render_symbol_html(packet, size \\ 32) do
     if packet do
       {symbol_table_id, symbol_code} = AprsSymbol.extract_from_packet(packet)
-      
+
       # Check if this is an overlay symbol
       if symbol_table_id && String.match?(symbol_table_id, ~r/^[A-Z0-9]$/) do
         # Use layered sprite backgrounds for overlay symbols
         sprite_info = AprsSymbol.get_sprite_info(symbol_table_id, symbol_code)
         overlay_sprite_info = AprsSymbol.get_overlay_character_sprite_info(symbol_table_id)
-        
+
-        raw """
+        raw("""
         <div style="
           position: relative;
           width: #{size}px;
@@ -348,16 +348,16 @@ defmodule AprsmeWeb.InfoLive.Show do
           margin-bottom: -6px;
         ">
         </div>
-        """
+        """)
       else
         # Use style rendering for non-overlay symbols
-        raw """
+        raw("""
         <div style="#{AprsSymbol.render_style(symbol_table_id, symbol_code, size)}"></div>
-        """
+        """)
       end
     else
       # Return empty if no packet
-      raw ""
+      raw("")
     end
   end
 

lib/aprsme_web/live/info_live/show.html.heex

@@ -1,4 +1,3 @@
-
 <div class="min-h-screen bg-base-200">
   <!-- Page header -->
   <div class="bg-base-100 shadow-sm">
@@ -15,9 +14,13 @@
               </span>
               <%= if @packet do %>
                 <% {symbol_table, symbol_code} = AprsmeWeb.AprsSymbol.extract_from_packet(@packet) %>
-                <% display_symbol = if symbol_table && String.match?(symbol_table, ~r/^[A-Z0-9]$/), do: symbol_table, else: "#{AprsmeWeb.AprsSymbol.normalize_symbol_table(symbol_table)}#{AprsmeWeb.AprsSymbol.normalize_symbol_code(symbol_code)}" %>
+                <% display_symbol =
+                  if symbol_table && String.match?(symbol_table, ~r/^[A-Z0-9]$/),
+                    do: symbol_table,
+                    else:
+                      "#{AprsmeWeb.AprsSymbol.normalize_symbol_table(symbol_table)}#{AprsmeWeb.AprsSymbol.normalize_symbol_code(symbol_code)}" %>
                 <div title={display_symbol}>
-                  <%= render_symbol_html(@packet) %>
+                  {render_symbol_html(@packet)}
                 </div>
               <% end %>
             </div>
@@ -251,10 +254,15 @@
                             {ssid_info.callsign}
                           </.link>
                           <%= if ssid_info.packet do %>
-                            <% {symbol_table, symbol_code} = AprsmeWeb.AprsSymbol.extract_from_packet(ssid_info.packet) %>
+                            <% {symbol_table, symbol_code} =
-                            <% display_symbol = if symbol_table && String.match?(symbol_table, ~r/^[A-Z0-9]$/), do: symbol_table, else: "#{AprsmeWeb.AprsSymbol.normalize_symbol_table(symbol_table)}#{AprsmeWeb.AprsSymbol.normalize_symbol_code(symbol_code)}" %>
+                              AprsmeWeb.AprsSymbol.extract_from_packet(ssid_info.packet) %>
+                            <% display_symbol =
+                              if symbol_table && String.match?(symbol_table, ~r/^[A-Z0-9]$/),
+                                do: symbol_table,
+                                else:
+                                  "#{AprsmeWeb.AprsSymbol.normalize_symbol_table(symbol_table)}#{AprsmeWeb.AprsSymbol.normalize_symbol_code(symbol_code)}" %>
                             <div title={display_symbol}>
-                              <%= render_symbol_html(ssid_info.packet) %>
+                              {render_symbol_html(ssid_info.packet)}
                             </div>
                           <% end %>
                         </div>
@@ -353,10 +361,15 @@
                           {neighbor.callsign}
                         </.link>
                         <%= if neighbor.packet do %>
-                          <% {symbol_table, symbol_code} = AprsmeWeb.AprsSymbol.extract_from_packet(neighbor.packet) %>
+                          <% {symbol_table, symbol_code} =
-                          <% display_symbol = if symbol_table && String.match?(symbol_table, ~r/^[A-Z0-9]$/), do: symbol_table, else: "#{AprsmeWeb.AprsSymbol.normalize_symbol_table(symbol_table)}#{AprsmeWeb.AprsSymbol.normalize_symbol_code(symbol_code)}" %>
+                            AprsmeWeb.AprsSymbol.extract_from_packet(neighbor.packet) %>
+                          <% display_symbol =
+                            if symbol_table && String.match?(symbol_table, ~r/^[A-Z0-9]$/),
+                              do: symbol_table,
+                              else:
+                                "#{AprsmeWeb.AprsSymbol.normalize_symbol_table(symbol_table)}#{AprsmeWeb.AprsSymbol.normalize_symbol_code(symbol_code)}" %>
                           <div title={display_symbol}>
-                            <%= render_symbol_html(neighbor.packet) %>
+                            {render_symbol_html(neighbor.packet)}
                           </div>
                         <% end %>
                       </div>

test/aprsme_web/aprs_symbol_test.exs

@@ -1,15 +1,16 @@
 defmodule AprsmeWeb.AprsSymbolTest do
   use ExUnit.Case, async: true
+
   alias AprsmeWeb.AprsSymbol
 
   describe "overlay symbol rendering" do
     test "D& should show black diamond background from table 1" do
       # Test the get_sprite_info for overlay symbol D&
       sprite_info = AprsSymbol.get_sprite_info("D", "&")
-      
+
       # Should use table 1 for the diamond background (alternate table)
       assert sprite_info.sprite_file == "/aprs-symbols/aprs-symbols-128-1@2x.png"
-      
+
       # Calculate expected position for & (ASCII 38)
       # index = 38 - 33 = 5
       # column = 5 % 16 = 5
@@ -23,10 +24,10 @@ defmodule AprsmeWeb.AprsSymbolTest do
     test "N# should show green star background from table 1" do
       # Test the get_sprite_info for overlay symbol N#
       sprite_info = AprsSymbol.get_sprite_info("N", "#")
-      
+
       # Should use table 1 for the green star background
       assert sprite_info.sprite_file == "/aprs-symbols/aprs-symbols-128-1@2x.png"
-      
+
       # Calculate expected position for # (ASCII 35)
       # index = 35 - 33 = 2
       # column = 2 % 16 = 2
@@ -40,10 +41,10 @@ defmodule AprsmeWeb.AprsSymbolTest do
     test "overlay character sprite info for D" do
       # Test getting the overlay character sprite for letter D
       overlay_info = AprsSymbol.get_overlay_character_sprite_info("D")
-      
+
       # Should use table 2 for overlay characters
       assert overlay_info.sprite_file == "/aprs-symbols/aprs-symbols-128-2@2x.png"
-      
+
       # Calculate expected position for D (ASCII 68)
       # index = 68 - 33 = 35
       # column = 35 % 16 = 3
@@ -57,10 +58,10 @@ defmodule AprsmeWeb.AprsSymbolTest do
     test "overlay character sprite info for N" do
       # Test getting the overlay character sprite for letter N
       overlay_info = AprsSymbol.get_overlay_character_sprite_info("N")
-      
+
       # Should use table 2 for overlay characters
       assert overlay_info.sprite_file == "/aprs-symbols/aprs-symbols-128-2@2x.png"
-      
+
       # Calculate expected position for N (ASCII 78)
       # index = 78 - 33 = 45
       # column = 45 % 16 = 13
@@ -73,26 +74,28 @@ defmodule AprsmeWeb.AprsSymbolTest do
 
     test "render_marker_html for overlay symbol D&" do
       html = AprsSymbol.render_marker_html("D", "&", "W5MRC-15", 32)
-      
+
       # Should contain both background images (overlay first from table 2, base from table 1)
-      assert html =~ "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-1@2x.png)"
+      assert html =~
-      
+               "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-1@2x.png)"
+
       # Should have both background positions (overlay first, then base)
       assert html =~ "background-position: -96.0px -64.0px, -160.0px 0.0px"
-      
+
       # Should include the callsign
       assert html =~ "W5MRC-15"
     end
 
     test "render_marker_html for overlay symbol N#" do
       html = AprsSymbol.render_marker_html("N", "#", "TEST-1", 32)
-      
+
       # Should contain both background images (overlay first from table 2, base from table 1)
-      assert html =~ "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-1@2x.png)"
+      assert html =~
-      
+               "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-1@2x.png)"
+
       # Should have both background positions (overlay first, then base)
       assert html =~ "background-position: -416.0px -64.0px, -64.0px 0.0px"
-      
+
       # Should include the callsign
       assert html =~ "TEST-1"
     end
@@ -100,9 +103,9 @@ defmodule AprsmeWeb.AprsSymbolTest do
     test "normal symbol /_" do
       # Test a normal symbol from primary table
       sprite_info = AprsSymbol.get_sprite_info("/", "_")
-      
+
       assert sprite_info.sprite_file == "/aprs-symbols/aprs-symbols-128-0@2x.png"
-      
+
       # Calculate expected position for _ (ASCII 95)
       # index = 95 - 33 = 62
       # column = 62 % 16 = 14
@@ -116,9 +119,9 @@ defmodule AprsmeWeb.AprsSymbolTest do
     test "alternate table symbol \\#" do
       # Test a symbol from alternate table
       sprite_info = AprsSymbol.get_sprite_info("\\", "#")
-      
+
       assert sprite_info.sprite_file == "/aprs-symbols/aprs-symbols-128-1@2x.png"
-      
+
       # Calculate expected position for # (ASCII 35)
       # index = 35 - 33 = 2
       # column = 2 % 16 = 2
@@ -131,12 +134,18 @@ defmodule AprsmeWeb.AprsSymbolTest do
 
     test "get_overlay_base_table_id mapping" do
       # Test the table mapping for overlay base symbols
-      assert AprsSymbol.get_overlay_base_table_id("#") == "1"  # Green star in alternate table
+      # Green star in alternate table
-      assert AprsSymbol.get_overlay_base_table_id("&") == "1"  # Diamond in alternate table
+      assert AprsSymbol.get_overlay_base_table_id("#") == "1"
-      assert AprsSymbol.get_overlay_base_table_id("i") == "1"  # Black square in alternate table
+      # Diamond in alternate table
-      assert AprsSymbol.get_overlay_base_table_id(">") == "1"  # Arrow in alternate table
+      assert AprsSymbol.get_overlay_base_table_id("&") == "1"
-      assert AprsSymbol.get_overlay_base_table_id("^") == "1"  # Arrow in alternate table
+      # Black square in alternate table
-      assert AprsSymbol.get_overlay_base_table_id("?") == "1"  # Default to alternate table
+      assert AprsSymbol.get_overlay_base_table_id("i") == "1"
+      # Arrow in alternate table
+      assert AprsSymbol.get_overlay_base_table_id(">") == "1"
+      # Arrow in alternate table
+      assert AprsSymbol.get_overlay_base_table_id("^") == "1"
+      # Default to alternate table
+      assert AprsSymbol.get_overlay_base_table_id("?") == "1"
     end
   end
-end
+end

test/aprsme_web/live/map_live/overlay_rendering_test.exs

@@ -1,5 +1,6 @@
 defmodule AprsmeWeb.MapLive.OverlayRenderingTest do
   use ExUnit.Case, async: true
+
   alias AprsmeWeb.MapLive.PacketUtils
 
   describe "overlay symbol rendering in map" do
@@ -21,18 +22,19 @@ defmodule AprsmeWeb.MapLive.OverlayRenderingTest do
 
       # Process the packet through PacketUtils
       result = PacketUtils.build_packet_data(packet, true, "en-US")
-      
+
       # Check that symbol_html was generated
       assert Map.has_key?(result, "symbol_html")
       symbol_html = result["symbol_html"]
-      
+
       # Verify the overlay symbol is rendered correctly with overlay character on top
       # The overlay character (D) should be first in the background-image list
-      assert symbol_html =~ "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-2@2x.png)"
+      assert symbol_html =~
-      
+               "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-2@2x.png)"
+
       # Verify the positions (overlay character D first at -96.0px -64.0px, then base & at -160.0px 0.0px)
       assert symbol_html =~ "background-position: -96.0px -64.0px, -160.0px 0.0px"
-      
+
       # Verify callsign is included
       assert symbol_html =~ "W5MRC-15"
     end
@@ -56,14 +58,15 @@ defmodule AprsmeWeb.MapLive.OverlayRenderingTest do
       # Process the packet
       result = PacketUtils.build_packet_data(packet, true, "en-US")
       symbol_html = result["symbol_html"]
-      
+
       # Verify the overlay uses different sprite tables
       # Overlay character N from table 2, base # from table 1
-      assert symbol_html =~ "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-1@2x.png)"
+      assert symbol_html =~
-      
+               "background-image: url(/aprs-symbols/aprs-symbols-128-2@2x.png), url(/aprs-symbols/aprs-symbols-128-1@2x.png)"
+
       # Verify the positions (overlay N first, then base #)
       assert symbol_html =~ "background-position: -416.0px -64.0px, -64.0px 0.0px"
-      
+
       # Verify callsign
       assert symbol_html =~ "TEST-1"
     end
@@ -87,16 +90,16 @@ defmodule AprsmeWeb.MapLive.OverlayRenderingTest do
       # Process the packet
       result = PacketUtils.build_packet_data(packet, true, "en-US")
       symbol_html = result["symbol_html"]
-      
+
       # Verify it's a single background image (no overlay)
       assert symbol_html =~ "background-image: url(/aprs-symbols/aprs-symbols-128-0@2x.png)"
       assert not (symbol_html =~ "background-image: url(/aprs-symbols/aprs-symbols-128-0@2x.png), url")
-      
+
       # Verify the position for _ symbol
       assert symbol_html =~ "background-position: -448.0px -96.0px"
-      
+
       # Verify callsign
       assert symbol_html =~ "WEATHER-1"
     end
   end
-end
+end