tests/micropython: Switch from set.pop to raise-0 to test exc strings.

To not rely on sets, which are an optional feature.

Signed-off-by: Damien George <damien@micropython.org>

1 files changed, 7 insertions, 9 deletions

diff --git a/tests/micropython/heapalloc_exc_compressed.py b/tests/micropython/heapalloc_exc_compressed.py
index 79e423ca0..aa071d641 100644
--- a/tests/micropython/heapalloc_exc_compressed.py
+++ b/tests/micropython/heapalloc_exc_compressed.py
@@ -5,12 +5,10 @@ import micropython
 # mp_obj_new_exception_msg (decompression can be deferred)
 
 # NameError uses mp_obj_new_exception_msg_varg for NameError("name '%q' isn't defined")
-# set.pop uses mp_obj_new_exception_msg for KeyError("pop from an empty set")
+# `raise 0` uses mp_obj_new_exception_msg for TypeError("exceptions must derive from BaseException")
 
 # Tests that deferred decompression works both via print(e) and accessing the message directly via e.args.
 
-a = set()
-
 # First test the regular case (can use heap for allocating the decompression buffer).
 try:
     name()
@@ -18,8 +16,8 @@ except NameError as e:
     print(type(e).__name__, e)
 
 try:
-    a.pop()
-except KeyError as e:
+    raise 0
+except TypeError as e:
     print(type(e).__name__, e)
 
 try:
@@ -28,8 +26,8 @@ except NameError as e:
     print(e.args[0])
 
 try:
-    a.pop()
-except KeyError as e:
+    raise 0
+except TypeError as e:
     print(e.args[0])
 
 # Then test that it still works when the heap is locked (i.e. in ISR context).
@@ -41,8 +39,8 @@ except NameError as e:
     print(type(e).__name__)
 
 try:
-    a.pop()
-except KeyError as e:
+    raise 0
+except TypeError as e:
     print(type(e).__name__)
 
 micropython.heap_unlock()