From 428de24010d5aaf4bebd035b8c16c037451385bc Mon Sep 17 00:00:00 2001
From: florian <f.spreckelsen@inidscale.com>
Date: Tue, 4 Oct 2022 16:56:34 +0200
Subject: [PATCH] TST: Add test for multiple circular macro definitions
---
unittests/test_macros.py | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/unittests/test_macros.py b/unittests/test_macros.py
index fea76fe9..a6c81e04 100644
--- a/unittests/test_macros.py
+++ b/unittests/test_macros.py
@@ -249,3 +249,38 @@ testnode:
assert dat["testnode"]["obl"]["replaced1"]["c"]["t2"] == "25"
assert dat["testnode"]["obl"]["replaced1"]["d"][0] == "a"
assert dat["testnode"]["obl"]["replaced1"]["d"][1] == "25"
+
+
+def test_circular_macro_definition(register_macros, macro_store_reset):
+ """Test the (ab-)use of macros to create an infinite loop."""
+ cfood = _temp_file_load("""
+---
+metadata:
+ macros:
+ - !defmacro
+ name: test_one
+ params: {}
+ definition: !macro
+ test_two:
+ - !defmacro
+ name: test_two
+ params: {}
+ definition: !macro
+ test_one:
+ - !defmacro
+ name: test_three
+ params: {}
+ definition: !macro
+ test_two:
+---
+extroot: !macro
+ test_one:
+extroot2: !macro
+ test_three:
+ """)
+ # macros in macros can be used, but there are no circles; they stop at the first one.
+ assert "test_one" not in cfood["extroot"]
+ assert cfood["extroot"]["test_two"] is None
+ assert "test_three" not in cfood["extroot2"]
+ assert "test_one" not in cfood["extroot2"]
+ assert cfood["extroot2"]["test_two"] is None
--
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