+# the release files aren't an IMS-hit, but the indexes are
+redatereleasefiles '+1 hour'
+
+# we don't download the index if it isn't updated
+testsuccess aptget update -o Debug::pkgAcquire::Auth=1
+# file:/ isn't shown in the log, so see if it was downloaded anyhow
+cp -a rootdir/tmp/testsuccess.output rootdir/tmp/update.output
+canary="SHA512:$(bzcat aptarchive/dists/unstable/main/binary-amd64/Packages.bz2 | sha512sum |cut -f1 -d' ')"
+testfailure grep -- "$canary" rootdir/tmp/update.output
+
+testfoo() {
+ # foo is still available
+ testsuccess aptget install -s foo
+ testsuccess aptcache showsrc foo
+ testsuccess aptget source foo --print-uris
+}
+testfoo
+
+# the release file is new again, the index still isn't, but it is somehow gone now from disk
+redatereleasefiles '+2 hour'
+find rootdir/var/lib/apt/lists -name '*_Packages*' -delete
+
+testsuccess aptget update -o Debug::pkgAcquire::Auth=1
+# file:/ isn't shown in the log, so see if it was downloaded anyhow
+cp -a rootdir/tmp/testsuccess.output rootdir/tmp/update.output
+canary="SHA512:$(bzcat aptarchive/dists/unstable/main/binary-amd64/Packages.bz2 | sha512sum |cut -f1 -d' ')"
+testsuccess grep -- "$canary" rootdir/tmp/update.output
+
+testfoo