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-rw-r--r--tests/micropython/heapalloc_str.py14
1 files changed, 14 insertions, 0 deletions
diff --git a/tests/micropython/heapalloc_str.py b/tests/micropython/heapalloc_str.py
new file mode 100644
index 000000000..0df39d3c0
--- /dev/null
+++ b/tests/micropython/heapalloc_str.py
@@ -0,0 +1,14 @@
+# String operations which don't require allocation
+import micropython
+
+micropython.heap_lock()
+
+b"" + b""
+b"" + b"1"
+b"2" + b""
+
+"" + ""
+"" + "1"
+"2" + ""
+
+micropython.heap_unlock()