tests: Add test for recursive iternext stack overflow.

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/misc/recursive_iternext.py b/tests/misc/recursive_iternext.py
new file mode 100644
index 000000000..ac3a17e93
--- /dev/null
+++ b/tests/misc/recursive_iternext.py
@@ -0,0 +1,33 @@
+# This tests that recursion with iternext doesn't lead to segfault.
+
+try:
+    x = (1, 2)
+    for i in range(1000):
+        x = enumerate(x)
+    tuple(x)
+except RuntimeError:
+    print("RuntimeError")
+
+try:
+    x = (1, 2)
+    for i in range(1000):
+        x = filter(None, x)
+    tuple(x)
+except RuntimeError:
+    print("RuntimeError")
+
+try:
+    x = (1, 2)
+    for i in range(1000):
+        x = map(max, x, ())
+    tuple(x)
+except RuntimeError:
+    print("RuntimeError")
+
+try:
+    x = (1, 2)
+    for i in range(1000):
+        x = zip(x)
+    tuple(x)
+except RuntimeError:
+    print("RuntimeError")