Check that error messages match between legacy and nft code.

Signed-off-by: Phil Sutter <[email protected]>
---
 .../testcases/iptables/0004-return-codes_0    | 59 +++++++++++++++----
 1 file changed, 46 insertions(+), 13 deletions(-)

diff --git a/iptables/tests/shell/testcases/iptables/0004-return-codes_0 
b/iptables/tests/shell/testcases/iptables/0004-return-codes_0
index 9d2493992bd69..15f3a3e9efb68 100755
--- a/iptables/tests/shell/testcases/iptables/0004-return-codes_0
+++ b/iptables/tests/shell/testcases/iptables/0004-return-codes_0
@@ -5,44 +5,77 @@
 
 global_rc=0
 
-cmd() { # (rc, cmd, [args ...])
+cmd() { # (rc, msg, cmd, [args ...])
        rc_exp=$1; shift
 
-       $XT_MULTI "$@"
+       msg_exp=""
+       [ $rc_exp != 0 ] && {
+               msg_exp="$1"; shift
+       }
+
+       msg="$($XT_MULTI "$@" 2>&1 >/dev/null)"
        rc=$?
 
        [ $rc -eq $rc_exp ] || {
-               echo "---> expected $rc_exp, got $rc for command '$@'"
+               echo "---> expected return code $rc_exp, got $rc for command 
'$@'"
+               global_rc=1
+       }
+
+       [ -n "$msg_exp" ] || return
+       grep -q "$msg_exp" <<< $msg || {
+               echo "---> expected error message '$msg_exp', got '$msg' for 
command '$@'"
                global_rc=1
        }
 }
 
+EEXIST_F="File exists."
+EEXIST="Chain already exists."
+ENOENT="No chain/target/match by that name."
+E2BIG_I="Index of insertion too big."
+E2BIG_D="Index of deletion too big."
+E2BIG_R="Index of replacement too big."
+EBADRULE="Bad rule (does a matching rule exist in that chain?)."
+ENOTGT="Couldn't load target \`foobar':No such file or directory"
+ENOMTH="Couldn't load match \`foobar':No such file or directory"
+ENOTBL="can't initialize iptables table \`foobar': Table does not exist"
+
 # test chain creation
 cmd 0 iptables -N foo
-cmd 1 iptables -N foo
+cmd 1 "$EEXIST" iptables -N foo
 # iptables-nft allows this - bug or feature?
 #cmd 2 iptables -N "invalid name"
 
 # test chain flushing/zeroing
 cmd 0 iptables -F foo
 cmd 0 iptables -Z foo
-cmd 1 iptables -F bar
-cmd 1 iptables -Z bar
+cmd 1 "$ENOENT" iptables -F bar
+cmd 1 "$ENOENT" iptables -Z bar
 
 # test chain rename
 cmd 0 iptables -E foo bar
-cmd 1 iptables -E foo bar
+cmd 1 "$EEXIST_F" iptables -E foo bar
 
 # test rule adding
 cmd 0 iptables -A INPUT -j ACCEPT
-cmd 1 iptables -A noexist -j ACCEPT
+cmd 1 "$ENOENT" iptables -A noexist -j ACCEPT
+
+# test rulenum commands
+cmd 1 "$E2BIG_I" iptables -I INPUT 23 -j ACCEPT
+cmd 1 "$E2BIG_D" iptables -D INPUT 23
+cmd 1 "$E2BIG_R" iptables -R INPUT 23 -j ACCEPT
+cmd 1 "$ENOENT" iptables -I nonexist 23 -j ACCEPT
+cmd 1 "$ENOENT" iptables -D nonexist 23
+cmd 1 "$ENOENT" iptables -R nonexist 23 -j ACCEPT
 
 # test rule checking
 cmd 0 iptables -C INPUT -j ACCEPT
-cmd 1 iptables -C FORWARD -j ACCEPT
-cmd 1 iptables -C nonexist -j ACCEPT
-cmd 2 iptables -C INPUT -j foobar
-cmd 2 iptables -C INPUT -m foobar -j ACCEPT
-cmd 3 iptables -t foobar -C INPUT -j ACCEPT
+cmd 1 "$EBADRULE" iptables -C FORWARD -j ACCEPT
+cmd 1 "$BADRULE" iptables -C nonexist -j ACCEPT
+cmd 2 "$ENOMTH" iptables -C INPUT -m foobar -j ACCEPT
+# messages of those don't match, but iptables-nft ones are actually nicer.
+#cmd 2 "$ENOTGT" iptables -C INPUT -j foobar
+#cmd 3 "$ENOTBL" iptables -t foobar -C INPUT -j ACCEPT
+cmd 2 "" iptables -C INPUT -j foobar
+cmd 3 "" iptables -t foobar -C INPUT -j ACCEPT
 
 exit $global_rc
-- 
2.20.1

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