diff --git a/doc/data/messages/c/consider-using-set-comprehension/bad.py b/doc/data/messages/c/consider-using-set-comprehension/bad.py
new file mode 100644
index 0000000000..657a211627
--- /dev/null
+++ b/doc/data/messages/c/consider-using-set-comprehension/bad.py
@@ -0,0 +1,3 @@
+NUMBERS = [1, 2, 2, 3, 4, 4]
+
+UNIQUE_EVEN_NUMBERS = set([number for number in NUMBERS if number % 2 == 0])  # [consider-using-set-comprehension]
diff --git a/doc/data/messages/c/consider-using-set-comprehension/good.py b/doc/data/messages/c/consider-using-set-comprehension/good.py
new file mode 100644
index 0000000000..4914fc2b00
--- /dev/null
+++ b/doc/data/messages/c/consider-using-set-comprehension/good.py
@@ -0,0 +1,3 @@
+NUMBERS = [1, 2, 2, 3, 4, 4]
+
+UNIQUE_EVEN_NUMBERS = {number for number in NUMBERS if number % 2 == 0}