diff --git a/tests/checks/complete-group-order.fish b/tests/checks/complete-group-order.fish
new file mode 100644
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+++ b/tests/checks/complete-group-order.fish
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+#RUN: %fish -C 'set -l fish %fish' %s
+
+function fooc; true; end;
+
+# A non-`complete -k` completion
+complete -c fooc -fa "alpha delta bravo"
+
+# A `complete -k` completion chronologically and alphabetically before the next completion. You'd
+# expect it to come first, but we documented that it will come second.
+complete -c fooc -fka "golf charlie echo"
+
+# A `complete -k` completion that is chronologically after and alphabetically after the previous
+# one, so a naive sort would place it after but we want to make sure it comes before.
+complete -c fooc -fka "india foxtrot hotel"
+
+# Another non-`complete -k` completion
+complete -c fooc -fa "kilo juliett lima"
+
+# Generate completions
+complete -C"fooc "
+# CHECK: alpha
+# CHECK: bravo
+# CHECK: india
+# CHECK: foxtrot
+# CHECK: hotel
+# CHECK: golf
+# CHECK: charlie
+# CHECK: delta
+# CHECK: echo
+# CHECK: juliett
+# CHECK: kilo
+# CHECK: lima