make it possible to run linux tests on arm64 macs

Author: joerick

test/utils.py

@@ -192,7 +192,7 @@ def expected_wheels(
         platform_tags = []
 
         if platform == "linux":
-            architectures = [machine_arch]
+            architectures = [arch_name_for_linux(machine_arch)]
 
             if machine_arch == "x86_64":
                 architectures.append("i686")
@@ -255,3 +255,14 @@ def get_macos_version():
     """
     version_str, _, _ = pm.mac_ver()
     return tuple(map(int, version_str.split(".")[:2]))
+
+
+def arch_name_for_linux(arch: str):
+    """
+    Archs have different names on different platforms, but it's useful to be
+    able to run linux tests on dev machines. This function translates between
+    the different names.
+    """
+    if arch == "arm64":
+        return "aarch64"
+    return arch