Implement mlx and cllm tests and remove redundant code

pkg/testutil/helpers.go

@@ -1,5 +1,7 @@
 package testutil
 
+import "slices"
+
 // Helper functions for pointer fields
 func BoolPtr(b bool) *bool {
 	return &b
@@ -8,3 +10,23 @@ func BoolPtr(b bool) *bool {
 func IntPtr(i int) *int {
 	return &i
 }
+
+// Helper functions for testing command arguments
+
+// Contains checks if a slice contains a specific item
+func Contains(slice []string, item string) bool {
+	return slices.Contains(slice, item)
+}
+
+// ContainsFlagWithValue checks if args contains a flag followed by a specific value
+func ContainsFlagWithValue(args []string, flag, value string) bool {
+	for i, arg := range args {
+		if arg == flag {
+			// Check if there's a next argument and it matches the expected value
+			if i+1 < len(args) && args[i+1] == value {
+				return true
+			}
+		}
+	}
+	return false
+}