From: Ondřej Surý <ondrej@isc.org>
Date: Wed, 1 Dec 2021 09:20:31 +0000 (+0100)
Subject: Add an idna test that _ and * characters are preserved
X-Git-Tag: v9.17.21~8^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ce1256c0665dcbec31b92fa86d773a55f51d661c;p=thirdparty%2Fbind9.git

Add an idna test that _ and * characters are preserved

Add a idna that checks whether non-character letters like _ and * are
preserved when IDN is enabled.  This wasn't the case when
UseSTD3ASCIIRules were enabled, f.e. _ from _tcp would get mangled to
tcp.
---

diff --git a/bin/tests/system/idna/tests.sh b/bin/tests/system/idna/tests.sh
index d7da8e3427a..f45930d44d8 100644
--- a/bin/tests/system/idna/tests.sh
+++ b/bin/tests/system/idna/tests.sh
@@ -347,6 +347,24 @@ idna_enabled_test() {
     idna_test "$text" "+noidnin +noidnout" "xn--19g" "xn--19g."
     idna_fail "$text" "+noidnin +idnout"   "xn--19g"
     idna_fail "$text" "+idnin   +idnout"   "xn--19g"
+
+
+    # Test that non-letter characters are preserved in the output.  When
+    # UseSTD3ASCIIRules are enabled, it would mangle non-letter characters like
+    # `_` (underscore) and `*` (wildcard.
+
+    test="Checking valid non-letter characters"
+    idna_test "$text" ""                   "*.xn--nxasmq6b.com" "*.xn--nxasmq6b.com."
+    idna_test "$text" "+noidnin +noidnout" "*.xn--nxasmq6b.com" "*.xn--nxasmq6b.com."
+    idna_test "$text" "+noidnin +idnout"   "*.xn--nxasmq6b.com" "*.βόλοσ.com."
+    idna_test "$text" "+idnin +noidnout"   "*.xn--nxasmq6b.com" "*.xn--nxasmq6b.com."
+    idna_test "$text" "+idnin +idnout"     "*.xn--nxasmq6b.com" "*.βόλοσ.com."
+
+    idna_test "$text" ""                   "_tcp.xn--nxasmq6b.com" "_tcp.xn--nxasmq6b.com."
+    idna_test "$text" "+noidnin +noidnout" "_tcp.xn--nxasmq6b.com" "_tcp.xn--nxasmq6b.com."
+    idna_test "$text" "+noidnin +idnout"   "_tcp.xn--nxasmq6b.com" "_tcp.βόλοσ.com."
+    idna_test "$text" "+idnin +noidnout"   "_tcp.xn--nxasmq6b.com" "_tcp.xn--nxasmq6b.com."
+    idna_test "$text" "+idnin +idnout"     "_tcp.xn--nxasmq6b.com" "_tcp.βόλοσ.com."
 }