use database agnostic function/quoting in test

activerecord/test/cases/unsafe_raw_sql_test.rb

@@ -139,10 +139,10 @@ class UnsafeRawSqlTest < ActiveRecord::TestCase
   end
 
   test "order: allows Arel.sql with binds" do
-    ids_expected = Post.order(Arel.sql('INSTR(title, "comments"), id')).pluck(:id)
+    ids_expected = Post.order(Arel.sql("REPLACE(title, 'misc', 'zzzz'), id")).pluck(:id)
 
-    ids_depr     = with_unsafe_raw_sql_deprecated { Post.order([Arel.sql("INSTR(title, ?), id"), "comments"]).pluck(:id) }
-    ids_disabled =  with_unsafe_raw_sql_disabled  { Post.order([Arel.sql("INSTR(title, ?), id"), "comments"]).pluck(:id) }
+    ids_depr     = with_unsafe_raw_sql_deprecated { Post.order([Arel.sql("REPLACE(title, ?, ?), id"), "misc", "zzzz"]).pluck(:id) }
+    ids_disabled = with_unsafe_raw_sql_disabled   { Post.order([Arel.sql("REPLACE(title, ?, ?), id"), "misc", "zzzz"]).pluck(:id) }
 
     assert_equal ids_expected, ids_depr
     assert_equal ids_expected, ids_disabled
@@ -151,7 +151,7 @@ class UnsafeRawSqlTest < ActiveRecord::TestCase
   test "order: disallows invalid bind statement" do
     with_unsafe_raw_sql_disabled   do
       assert_raises(ActiveRecord::UnknownAttributeReference) do
-        Post.order(["INSTR(title, ?), id", "comments"]).pluck(:id)
+        Post.order(["REPLACE(title, ?, ?), id", "misc", "zzzz"]).pluck(:id)
       end
     end
   end