remove callback tests for mac os x (LLVM limitation)

test/callbacks.jl

@@ -1,44 +1,47 @@
 using open62541
 using Test
 
-#find all defined callbacks in open62541 (src/callbacks.jl file)
-callbacks = filter(x -> occursin(r"Callback.*_generate", string(x)), names(open62541))
+if !Sys.isapple() #closures not supported on Apple M1 processors, LLVM limitation. 
 
-#initialized return type list - only callbacks with non-Nothing return types need 
-#to be added here
-callback_names = [
-    :UA_MethodCallback_generate,
-    :UA_NodeTypeLifecycleCallback_constructor_generate,
-    :UA_DataSourceCallback_read_generate,
-    :UA_DataSourceCallback_write_generate
-]
-return_types = ["UA_UInt32(0)", "UA_UInt32(0)", "UA_UInt32(0)", "UA_UInt32(0)"]
+    #find all defined callbacks in open62541 (src/callbacks.jl file)
+    callbacks = filter(x -> occursin(r"Callback.*_generate", string(x)), names(open62541))
 
-#test exception branch of all callbacks
-for callback in callbacks
-    #checks exception branch of the callback
-    a = () -> 0.0
-    @test_throws open62541.CallbackGeneratorArgumentError eval(callback)(a)
+    #initialized return type list - only callbacks with non-Nothing return types need 
+    #to be added here
+    callback_names = [
+        :UA_MethodCallback_generate,
+        :UA_NodeTypeLifecycleCallback_constructor_generate,
+        :UA_DataSourceCallback_read_generate,
+        :UA_DataSourceCallback_write_generate
+    ]
+    return_types = ["UA_UInt32(0)", "UA_UInt32(0)", "UA_UInt32(0)", "UA_UInt32(0)"]
 
-    #checks the main branch of the callback
-    try
-        eval(callback)(a)
-    catch e
-        i = findfirst(x -> x == callback, callback_names)
-        if !isnothing(i)
-            rettype = return_types[i]
-        else
-            rettype = nothing
-        end
+    #test exception branch of all callbacks
+    for callback in callbacks
+        #checks exception branch of the callback
+        a = () -> 0.0
+        @test_throws open62541.CallbackGeneratorArgumentError eval(callback)(a)
+
+        #checks the main branch of the callback
+        try
+            eval(callback)(a)
+        catch e
+            i = findfirst(x -> x == callback, callback_names)
+            if !isnothing(i)
+                rettype = return_types[i]
+            else
+                rettype = nothing
+            end
 
-        args = e.argtuple
-        str = "prot(::" * string(args[1])
-        for i in 2:length(args)
-            str = str * ", ::" * string(args[i])
+            args = e.argtuple
+            str = "prot(::" * string(args[1])
+            for i in 2:length(args)
+                str = str * ", ::" * string(args[i])
+            end
+            str = str * ") = $rettype"
+            eval(Meta.parse(str))
+            @test !isa(eval(callback)(prot), Exception)
+            Base.delete_method(methods(prot)[1])
         end
-        str = str * ") = $rettype"
-        eval(Meta.parse(str))
-        @test !isa(eval(callback)(prot), Exception)
-        Base.delete_method(methods(prot)[1])
     end
-end
+end