Don't assert that macosx will have a JIT, becuase the brew package so…

…mehow doesn't (#426)

See #426 for some meta, test isn't important enough to keep running it right now

test/benchee/system_test.exs

@@ -143,6 +143,8 @@ defmodule Benchee.SystemTest do
   end
 
   # It may be compiled in a way that it doesn't but in the CI and dev machines it should be fine
+  # except for mac sometimes, where of course it isn't
+  @tag :guaranteed_jit
   test ".jit_enabled? should say true for versions > 24.0.0" do
     system_data = system(%Suite{}).system
     jit_enabled? = system_data.jit_enabled?

test/test_helper.exs

@@ -54,4 +54,14 @@ exclusions =
     exclusions
   end
 
+# somehow on CI macos doesn't have the JIT enabled installed via brew: https://github.com/bencheeorg/benchee/pull/426
+exclusions =
+  case os do
+    :darwin ->
+      [{:guaranteed_jit, true} | exclusions]
+
+    _ ->
+      exclusions
+  end
+
 ExUnit.start(exclude: exclusions)