tests: add test case for removal of anon sets with only a single element

Also add a few examples that should not be changed:
- anon set with 2 elements
- anon map with 1 element
- anon set with a concatenation

The latter could be done with cmp but this currently triggers
'Error: Use concatenations with sets and maps, not singleton values'
after removing the anon set.

Signed-off-by: Florian Westphal <fw@strlen.de>

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/shell/testcases/optimizations/dumps/single_anon_set.nft b/tests/shell/testcases/optimizations/dumps/single_anon_set.nft
new file mode 100644
index 00000000..35e3f36e
--- /dev/null
+++ b/tests/shell/testcases/optimizations/dumps/single_anon_set.nft
@@ -0,0 +1,15 @@
+table ip test {
+	chain test {
+		ip saddr 127.0.0.1 accept
+		iif "lo" accept
+		tcp dport != 22 drop
+		ip saddr 127.0.0.0/8 accept
+		ip saddr 127.0.0.1-192.168.7.3 accept
+		tcp sport 1-1023 drop
+		ip daddr { 192.168.7.1, 192.168.7.5 } accept
+		tcp dport { 80, 443 } accept
+		ip daddr . tcp dport { 192.168.0.1 . 22 } accept
+		meta mark set ip daddr map { 192.168.0.1 : 0x00000001 }
+		ct state { established, related } accept
+	}
+}