alternative solution

Improvements:
* Does not require `Erlang/OTP` version check
* Independent of `JIT` optimisations and architecture
* Properly validates sorted results
* Asserts mfa string as column value

Author: Eiji7

lib/mix/test/mix/tasks/profile.tprof_test.exs

@@ -86,19 +86,19 @@ defmodule Mix.Tasks.Profile.TprofTest do
       result = capture_io(fn ->
         Tprof.run(["--type", "memory", "--sort", "per_call", "-e", @expr])
       end)
-
-      # TODO: Remove when we require Erlang 28 exclusively
-      otp_release =
-        :otp_release
-        |> :erlang.system_info()
-        |> List.to_integer()
-
-      if otp_release < 28 do
-        assert result =~ ~r/\n:erlang\.integer_to_binary\/1.*\nEnum\.each\/2/s
-      else
-        assert result =~ ~r/\n:erlang\.integer_to_binary\/1[^\n]+3\.\d{2}\n/
-        assert result =~ ~r/\nEnum\.each\/2[^\n]+3\.\d{2}\n/
-      end
+      
+      [_warmup, _profile_results, _columns, _total, first, second, _profile_done, ""] =
+        String.split(result, ~r/\n+/)
+      
+      list =
+        Enum.map([first, second], fn row ->
+          [mfa, _calls, _percent, _words, per_call] = String.split(row, ~r/\s+/)
+          {mfa, String.to_float(per_call)}
+        end)
+      
+      assert list == Enum.sort_by(list, &elem(&1, 1))
+      assert List.keymember?(list, "Enum.each/2", 0)
+      assert List.keymember?(list, ":erlang.integer_to_binary/1", 0)
     end)
   end