Introduce experimental 'never' pinning for sources

This allows disabling a repository by pinning it to 'never',
which is internally translated to a value of -32768 (or whatever
the minimum of short is).

This overrides any other pin for that repository. It can be used
to make sure certain sources are never used; for example, in
unattended-upgrades.

To prevent semantic changes to existing files, we substitute
min + 1 for every pin-priority: <min>. This is a temporary
solution, as we are waiting for an ABI break.

To add pins with that value, the special Pin-Priority
"never" may be used for now. It's unclear if that will
persist, or if the interface will change eventually.

(similar to commit 8bb2a91a070170d7d8e71206d1c66a26809bdbc3)
LP: #1814727

1 files changed, 13 insertions, 0 deletions

diff --git a/test/integration/framework b/test/integration/framework
index 62d3a8386..38f08a59b 100644
--- a/test/integration/framework
+++ b/test/integration/framework
@@ -1148,6 +1148,19 @@ testfailure() {
 	fi
 }
 
+testsuccessequal() {
+       local CMP="$1"
+       shift
+       testsuccess "$@"
+       testfileequal "${TMPWORKINGDIRECTORY}/rootdir/tmp/testsuccess.output" "$CMP"
+}
+testfailureequal() {
+       local CMP="$1"
+       shift
+       testfailure "$@"
+       testfileequal "${TMPWORKINGDIRECTORY}/rootdir/tmp/testfailure.output" "$CMP"
+}
+
 testwebserverlaststatuscode() {
 	local DOWNLOG='rootdir/tmp/webserverstatus-testfile.log'
 	local STATUS='rootdir/tmp/webserverstatus-statusfile.log'