Actually test x64 and add aarch64 tests (#52)

.github/workflows/Test.yml

@@ -12,8 +12,12 @@ jobs:
       fail-fast: false
       matrix:
         version: ['1.10', 'pre', 'nightly']
-        os: ['macOS-latest']
-        arch: [x64]
+        os: ['macOS-13', 'macOS-latest']
+        include:
+          - os: 'macOS-13'
+            arch: 'x64'
+          - os: 'macOS-latest'
+            arch: 'aarch64'
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v2

src/ObjectiveC.jl

@@ -14,8 +14,14 @@ The setting is saved in a preference, so is persistent, and requires a restart o
 take effect.
 """
 function enable_tracing(enabled::Bool)
+    prev_tracing = @load_preference("tracing", false)::Bool
     @set_preferences!("tracing" => enabled)
-    @info("ObjectiveC.jl tracing setting changed; restart your Julia session for this change to take effect!")
+    if prev_tracing == enabled
+        @info("ObjectiveC.jl tracing setting was already `$enabled`; setting not changed.")
+    else
+        @info("ObjectiveC.jl tracing setting changed; restart your Julia session for this change to take effect!")
+    end
+    return
 end
 const tracing = @load_preference("tracing", false)::Bool
 

test/runtests.jl

@@ -1,8 +1,6 @@
 using ObjectiveC
 using Test
 
-using ObjectiveC
-
 @testset "@objc macro" begin
     # class methods
     @objc [NSString new]::id{Object}
@@ -568,7 +566,7 @@ end
 @testset "tracing" begin
     ObjectiveC.enable_tracing(true)
     cmd = ```$(Base.julia_cmd()) --project=$(Base.active_project())
-                                 --eval "using ObjectiveC, .Foundation; String(NSString())"```
+                                 --eval "using ObjectiveC; using .Foundation; String(NSString())"```
 
     out = Pipe()
     err = Pipe()