feat: add amory, babcock to short signs lists

Add the SCU ID's for Amory and Babcock on the Green Line to shorten the
text shown on screens at these stations.

Author: rwaskiewicz

lib/pa_ess/utilities.ex

@@ -9,7 +9,7 @@ defmodule PaEss.Utilities do
   @comma "21012"
   @period "21014"
   @stopped_regex ~r/Stopped (\d+) stops? away/
-  @short_sign_scu_ids ["SCOUSCU001"]
+  @short_sign_scu_ids ["SCOUSCU001", "GAMOSCU001", "GBABSCU001"]
   @width 24
   @short_width 18
 

test/pa_ess/utilities_test.exs

@@ -59,7 +59,7 @@ defmodule Content.Audio.UtilitiesTest do
       assert replace_abbreviations("OL, OK") == "Orange Line, OK"
     end
 
-    test "case insenstive replacement of 'SVC' with 'Service'" do
+    test "case insensitive replacement of 'SVC' with 'Service'" do
       assert replace_abbreviations("SvC, OK") == "Service, OK"
     end
   end
@@ -78,4 +78,21 @@ defmodule Content.Audio.UtilitiesTest do
     assert ["1", "21012", "21000", "2"] = pad_takes(["1", "21012", "2"])
     assert ["1", "21000", "2", "21014"] = pad_takes(["1", "2", "21014"])
   end
+
+  describe "sign_length/1" do
+    test "returns :short for stations with shorter signs" do
+      assert :short = sign_length("SCOUSCU001")
+      assert :short = sign_length("GAMOSCU001")
+      assert :short = sign_length("GBABSCU001")
+    end
+  end
+
+  describe "max_text_length/1" do
+    test "returns a smaller character count for stations with shorter signs" do
+      short_width = 18
+      assert ^short_width = max_text_length("SCOUSCU001")
+      assert ^short_width = max_text_length("GAMOSCU001")
+      assert ^short_width = max_text_length("GBABSCU001")
+    end
+  end
 end