X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/93d0d08cdd6854f9bfb779c13b5b78cd6ed263aa..782c60a6bf7dddcc71dbdbc4a0eea85824076fa9:/test/integration/test-apt-key

diff --git a/test/integration/test-apt-key b/test/integration/test-apt-key
index 99ce855d4..e777de1a4 100755
--- a/test/integration/test-apt-key
+++ b/test/integration/test-apt-key
@@ -1,132 +1,291 @@
 #!/bin/sh
 set -e
 
-TESTDIR=$(readlink -f $(dirname $0))
-. $TESTDIR/framework
+# apt-key is a shell script, so relatively prune to be effected by 'crazy' things:
+# confuses config parser as there exists no way of escaping " currently.
+#TMPDIR="$(mktemp -d)/This is \"fü\$\$ing cràzy\", \$(man man | head -n1 | cut -d' ' -f 1)\$!"
+# gpg doesn't like | in path names – documented e.g. in the man gpg2 --agent-program
+#TMPDIR="$(mktemp -d)/This is fü\$\$ing cràzy, \$(man man | head -n1 | cut -d' ' -f 1)\$!"
+TMPDIR_ADD="This is fü\$\$ing cràzy, \$(apt -v)\$!"
+
+TESTDIR="$(readlink -f "$(dirname "$0")")"
+. "$TESTDIR/framework"
 
 setupenvironment
 configarchitecture 'amd64'
 
 # start from a clean plate again
 cleanplate() {
-	rm -rf rootdir/etc/apt/trusted.gpg.d/ rootdir/etc/apt/trusted.gpg
-	mkdir rootdir/etc/apt/trusted.gpg.d/
+	rm -rf "${ROOTDIR}/etc/apt/trusted.gpg.d/" "${ROOTDIR}/etc/apt/trusted.gpg"
+	mkdir "${ROOTDIR}/etc/apt/trusted.gpg.d/"
+}
+testmultigpg() {
+	testfailure --nomsg aptkey --quiet --readonly "$@"
+	testsuccess grep "^gpgv: Can't check signature" "${ROOTDIR}/tmp/testfailure.output"
+	testsuccess grep '^gpgv: Good signature from' "${ROOTDIR}/tmp/testfailure.output"
 }
-
-echo 'APT::Key::ArchiveKeyring "./keys/joesixpack.pub";
-APT::Key::RemovedKeys "./keys/rexexpired.pub";' > rootdir/etc/apt/apt.conf.d/aptkey.conf
 
 testrun() {
+	echo "APT::Key::ArchiveKeyring \"${KEYDIR}/joesixpack.pub\";
+APT::Key::RemovedKeys \"${KEYDIR}/rexexpired.pub\";" > "${ROOTDIR}/etc/apt/apt.conf.d/aptkey.conf"
+
 	cleanplate
-	ln -sf ${TMPWORKINGDIRECTORY}/keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
+	ln -sf "$(readlink -f "${KEYDIR}/joesixpack.pub")" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testaptkeys 'Joe Sixpack'
 
+	testsuccess aptkey list
 	msgtest 'Check that paths in list output are not' 'double-slashed'
-	aptkey list 2>&1 | grep -q '//' && msgfail || msgpass
+	testfailure --nomsg grep '//' "${ROOTDIR}/tmp/testsuccess.output"
 
+	testsuccess aptkey finger
 	msgtest 'Check that paths in finger output are not' 'double-slashed'
-	aptkey finger 2>&1 | grep -q '//' && msgfail || msgpass
+	testfailure --nomsg grep '//' "${ROOTDIR}/tmp/testsuccess.output"
 
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/DBAC8DAE 2010-08-18'
-
-	testequal 'gpg: key DBAC8DAE: "Joe Sixpack (APT Testcases Dummy) <joe@example.org>" not changed
+	testsuccessequal 'gpg: key DBAC8DAE: "Joe Sixpack (APT Testcases Dummy) <joe@example.org>" not changed
 gpg: Total number processed: 1
 gpg:              unchanged: 1' aptkey --fakeroot update
 
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/DBAC8DAE 2010-08-18'
+	testaptkeys 'Joe Sixpack'
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg"
+
+	testsuccess aptkey --fakeroot add "${KEYDIR}/rexexpired.pub"
+	testfilestats "${ROOTDIR}/etc/apt/trusted.gpg" '%a' '=' '644'
 
-	testsuccess aptkey --fakeroot add ./keys/rexexpired.pub
+	testaptkeys 'Rex Expired' 'Joe Sixpack'
 
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/27CE74F9 2013-07-12 [expired: 2013-07-13]
-pub   2048R/DBAC8DAE 2010-08-18'
+	msgtest 'Check that Sixpack key can be' 'exported'
+	aptkey export 'Sixpack' > "${TMPWORKINGDIRECTORY}/aptkey.export"
+	aptkey --keyring "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg" exportall > "${TMPWORKINGDIRECTORY}/aptkey.exportall"
+	testsuccess --nomsg cmp "${TMPWORKINGDIRECTORY}/aptkey.export" "${TMPWORKINGDIRECTORY}/aptkey.exportall"
+	testsuccess test -s "${TMPWORKINGDIRECTORY}/aptkey.export"
+	testsuccess test -s "${TMPWORKINGDIRECTORY}/aptkey.exportall"
 
 	msgtest 'Execute update again to trigger removal of' 'Rex Expired key'
 	testsuccess --nomsg aptkey --fakeroot update
 
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/DBAC8DAE 2010-08-18'
+	testaptkeys 'Joe Sixpack'
 
 	msgtest "Try to remove a key which exists, but isn't in the" 'forced keyring'
-	testsuccess --nomsg aptkey --fakeroot --keyring rootdir/etc/apt/trusted.gpg del DBAC8DAE
+	testsuccess --nomsg aptkey --fakeroot --keyring "${ROOTDIR}/etc/apt/trusted.gpg" del DBAC8DAE
 
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/DBAC8DAE 2010-08-18'
+	testaptkeys 'Joe Sixpack'
 
 	testsuccess aptkey --fakeroot del DBAC8DAE
 	testempty aptkey list
 
+	msgtest 'Test key removal with' 'lowercase key ID' #keylength somewhere between 8byte and short
+	cleanplate
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess --nomsg aptkey --fakeroot del d141dbac8dae
+	testempty aptkey list
+
 	msgtest 'Test key removal with' 'single key in real file'
 	cleanplate
-	cp -a keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
 	testsuccess --nomsg aptkey --fakeroot del DBAC8DAE
 	testempty aptkey list
-	testsuccess test ! -e rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
-	testsuccess cmp keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg~
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess cmp "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg~"
+
+	msgtest 'Test key removal with' 'different key specs'
+	cleanplate
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	cp -a "${KEYDIR}/marvinparanoid.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/marvinparanoid.gpg"
+	testsuccess --nomsg aptkey --fakeroot del 0xDBAC8DAE 528144E2
+	testempty aptkey list
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess cmp "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg~"
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg.d/marvinparanoid.gpg"
+	testsuccess cmp "${KEYDIR}/marvinparanoid.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/marvinparanoid.gpg~"
+
+	msgtest 'Test key removal with' 'long key ID'
+	cleanplate
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess --nomsg aptkey --fakeroot del 5A90D141DBAC8DAE
+	testempty aptkey list
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess cmp "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg~"
+
+	msgtest 'Test key removal with' 'fingerprint'
+	cleanplate
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess --nomsg aptkey --fakeroot del 34A8E9D18DB320F367E8EAA05A90D141DBAC8DAE
+	testempty aptkey list
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess cmp "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg~"
 
 	msgtest 'Test key removal with' 'single key in softlink'
 	cleanplate
-	ln -s $(readlink -f ./keys/joesixpack.pub) rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
+	ln -s "$(readlink -f "${KEYDIR}/joesixpack.pub")" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
 	testsuccess --nomsg aptkey --fakeroot del DBAC8DAE
 	testempty aptkey list
-	testsuccess test ! -e rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
-	testsuccess test -L rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg~
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess test -L "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg~"
 
 	cleanplate
-	testsuccess aptkey --fakeroot add ./keys/joesixpack.pub
-	testsuccess aptkey --fakeroot add ./keys/marvinparanoid.pub
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/DBAC8DAE 2010-08-18
-pub   2048R/528144E2 2011-01-16'
-	cp -a rootdir/etc/apt/trusted.gpg keys/testcase-multikey.pub # store for reuse
+	testsuccess aptkey --fakeroot add "${KEYDIR}/joesixpack.pub"
+	ln -sf "$(readlink -f "${KEYDIR}/marvinparanoid.pub")" "${KEYDIR}/marvin paránöid.pub"
+	testsuccess aptkey --fakeroot add "${KEYDIR}/marvin paránöid.pub"
+	testaptkeys 'Joe Sixpack' 'Marvin Paranoid'
+	cp -a "${ROOTDIR}/etc/apt/trusted.gpg" "${KEYDIR}/testcase-multikey.pub" # store for reuse
 
 	msgtest 'Test key removal with' 'multi key in real file'
 	cleanplate
-	cp -a keys/testcase-multikey.pub rootdir/etc/apt/trusted.gpg.d/multikey.gpg
+	cp -a "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg"
 	testsuccess --nomsg aptkey --fakeroot del DBAC8DAE
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/528144E2 2011-01-16'
-	testsuccess cmp keys/testcase-multikey.pub rootdir/etc/apt/trusted.gpg.d/multikey.gpg~
+	testaptkeys 'Marvin Paranoid'
+	testsuccess cmp "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg~"
 
 	msgtest 'Test key removal with' 'multi key in softlink'
 	cleanplate
-	ln -s $(readlink -f ./keys/testcase-multikey.pub) rootdir/etc/apt/trusted.gpg.d/multikey.gpg
+	ln -s "$(readlink -f "${KEYDIR}/testcase-multikey.pub")" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg"
 	testsuccess --nomsg aptkey --fakeroot del DBAC8DAE
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/528144E2 2011-01-16'
-	testsuccess cmp keys/testcase-multikey.pub rootdir/etc/apt/trusted.gpg.d/multikey.gpg~
-	testsuccess test ! -L rootdir/etc/apt/trusted.gpg.d/multikey.gpg
-	testsuccess test -L rootdir/etc/apt/trusted.gpg.d/multikey.gpg~
+	testaptkeys 'Marvin Paranoid'
+	testsuccess cmp "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg~"
+	testfailure test -L "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg"
+	testsuccess test -L "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg~"
 
 	msgtest 'Test key removal with' 'multiple files including key'
 	cleanplate
-	cp -a keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
-	cp -a keys/testcase-multikey.pub rootdir/etc/apt/trusted.gpg.d/multikey.gpg
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	cp -a "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg"
 	testsuccess --nomsg aptkey --fakeroot del DBAC8DAE
-	aptkey list | grep '^pub' > aptkey.list
-	testfileequal ./aptkey.list 'pub   2048R/528144E2 2011-01-16'
-	testsuccess test ! -e rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg
-	testsuccess cmp keys/joesixpack.pub rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg~
-	testsuccess cmp keys/testcase-multikey.pub rootdir/etc/apt/trusted.gpg.d/multikey.gpg~
+	testaptkeys 'Marvin Paranoid'
+	testfailure test -e "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	testsuccess cmp "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg~"
+	testsuccess cmp "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg~"
+
+	cleanplate
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	cp -a "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg"
+	testaptkeys 'Joe Sixpack' 'Joe Sixpack' 'Marvin Paranoid'
+	msgtest 'Test merge-back of' 'added keys'
+	testsuccess --nomsg aptkey adv --batch --yes --import "${KEYDIR}/rexexpired.pub"
+	testaptkeys 'Rex Expired' 'Joe Sixpack' 'Joe Sixpack' 'Marvin Paranoid'
+
+	msgtest 'Test merge-back of' 'removed keys'
+	testsuccess --nomsg aptkey adv --batch --yes --delete-keys 27CE74F9
+	testaptkeys 'Joe Sixpack' 'Joe Sixpack' 'Marvin Paranoid'
+
+	msgtest 'Test merge-back of' 'removed duplicate keys'
+	testsuccess --nomsg aptkey adv --batch --yes --delete-keys DBAC8DAE
+	testaptkeys 'Marvin Paranoid'
+
+	cleanplate
+	cp -a "${KEYDIR}/joesixpack.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/joesixpack.gpg"
+	cp -a "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg"
+	local SIGNATURE="${TMPWORKINGDIRECTORY}/signature"
+	msgtest 'Test signing a file' 'with a key'
+	echo 'Verify me. This is my signature.' > "$SIGNATURE"
+	echo 'lalalalala' > "${SIGNATURE}2"
+	testsuccess --nomsg aptkey --quiet --keyring "${KEYDIR}/marvinparanoid.pub" --secret-keyring "${KEYDIR}/marvinparanoid.sec" --readonly \
+		adv --batch --yes --default-key 'Marvin' --armor --detach-sign --sign --output "${SIGNATURE}.gpg" "${SIGNATURE}"
+	testsuccess test -s "${SIGNATURE}.gpg" -a -s "${SIGNATURE}"
+
+	msgtest 'Test verify a file' 'with no sig'
+	testfailure --nomsg aptkey --quiet --readonly --keyring "${KEYDIR}/testcase-multikey.pub" verify "${SIGNATURE}" "${SIGNATURE}2"
+
+	for GPGV in '' 'gpgv' 'gpgv2'; do
+		echo "APT::Key::GPGVCommand \"$GPGV\";" > "${ROOTDIR}/etc/apt/apt.conf.d/00gpgvcmd"
+
+		msgtest 'Test verify a file' 'with all keys'
+		testsuccess --nomsg aptkey --quiet --readonly verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test verify a file' 'with good keyring'
+		testsuccess --nomsg aptkey --quiet --readonly --keyring "${KEYDIR}/testcase-multikey.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a file' 'with bad keyring'
+		testfailure --nomsg aptkey --quiet --readonly --keyring "${KEYDIR}/joesixpack.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a file' 'with non-existing keyring'
+		testfailure --nomsg aptkey --quiet --readonly --keyring "${KEYDIR}/does-not-exist.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+		testfailure test -e "${KEYDIR}/does-not-exist.pub"
+
+		# note: this isn't how apts gpgv method implements keyid for verify
+		msgtest 'Test verify a file' 'with good keyid'
+		testsuccess --nomsg aptkey --quiet --readonly --keyid 'Paranoid' verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a file' 'with bad keyid'
+		testfailure --nomsg aptkey --quiet --readonly --keyid 'Sixpack' verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a file' 'with non-existing keyid'
+		testfailure --nomsg aptkey --quiet --readonly --keyid 'Kalnischkies' verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test verify fails on' 'bad file'
+		testfailure --nomsg aptkey --quiet --readonly verify "${SIGNATURE}.gpg" "${SIGNATURE}2"
+	done
+	rm -f "${ROOTDIR}/etc/apt/apt.conf.d/00gpgvcmd"
+
+	msgtest 'Test verify a file' 'with good keyring'
+	testsuccess --nomsg aptkey --quiet --readonly --keyring "${KEYDIR}/testcase-multikey.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+	cleanplate
+	cat "${KEYDIR}/joesixpack.pub" "${KEYDIR}/marvinparanoid.pub" > "${KEYDIR}/double.pub"
+	cat "${KEYDIR}/joesixpack.sec" "${KEYDIR}/marvinparanoid.sec" > "${KEYDIR}/double.sec"
+	cp -a "${KEYDIR}/double.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/double.gpg"
+	cp -a "${KEYDIR}/testcase-multikey.pub" "${ROOTDIR}/etc/apt/trusted.gpg.d/multikey.gpg"
+	rm -f "${SIGNATURE}.gpg"
+	testsuccess aptkey --quiet --keyring "${KEYDIR}/double.pub" --secret-keyring "${KEYDIR}/double.sec" --readonly \
+		adv --batch --yes -u 'Marvin' -u 'Joe' --armor --detach-sign --sign --output "${SIGNATURE}.gpg" "${SIGNATURE}"
+	testsuccess test -s "${SIGNATURE}.gpg" -a -s "${SIGNATURE}"
+
+	for GPGV in '' 'gpgv' 'gpgv2'; do
+		echo "APT::Key::GPGVCommand \"$GPGV\";" > "${ROOTDIR}/etc/apt/apt.conf.d/00gpgvcmd"
+
+		msgtest 'Test verify a doublesigned file' 'with all keys'
+		testsuccess --nomsg aptkey --quiet --readonly verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test verify a doublesigned file' 'with good keyring joe'
+		testmultigpg --keyring "${KEYDIR}/joesixpack.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test verify a doublesigned file' 'with good keyring marvin'
+		testmultigpg --keyring "${KEYDIR}/marvinparanoid.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a doublesigned file' 'with bad keyring'
+		testfailure --nomsg aptkey --quiet --readonly --keyring "${KEYDIR}/rexexpired.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a doublesigned file' 'with non-existing keyring'
+		testfailure --nomsg aptkey --quiet --readonly --keyring "${KEYDIR}/does-not-exist.pub" verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+		testfailure test -e "${KEYDIR}/does-not-exist.pub"
+
+		# note: this isn't how apts gpgv method implements keyid for verify
+		msgtest 'Test verify a doublesigned file' 'with good keyid'
+		testmultigpg --keyid 'Paranoid' verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a doublesigned file' 'with bad keyid'
+		testfailure --nomsg aptkey --quiet --readonly --keyid 'Rex' verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test fail verify a doublesigned file' 'with non-existing keyid'
+		testfailure --nomsg aptkey --quiet --readonly --keyid 'Kalnischkies' verify "${SIGNATURE}.gpg" "${SIGNATURE}"
+
+		msgtest 'Test verify fails on' 'bad doublesigned file'
+		testfailure --nomsg aptkey --quiet --readonly verify "${SIGNATURE}.gpg" "${SIGNATURE}2"
+	done
+	rm -f "${ROOTDIR}/etc/apt/apt.conf.d/00gpgvcmd"
 }
 
 setupgpgcommand() {
-	echo "APT::Key::GPGCommand \"$1\";" > rootdir/etc/apt/apt.conf.d/00gpgcmd
-	msgtest 'Test that apt-key uses for the following tests command' "$1"
-	aptkey adv --version >aptkey.version 2>&1
-	if grep -q "^Executing: $1 --" aptkey.version; then
-		msgpass
-	else
-		cat aptkey.version
-		msgfail
-	fi
+	echo "APT::Key::GPGCommand \"$1\";" > "${ROOTDIR}/etc/apt/apt.conf.d/00gpgcmd"
+	msgmsg 'Force tests to be run with' "$1"
+	testsuccess aptkey --readonly adv --version
+	cp "${ROOTDIR}/tmp/testsuccess.output" "${TMPWORKINGDIRECTORY}/aptkey.version"
+	testsuccess grep "^gpg (GnuPG) $2\." "${TMPWORKINGDIRECTORY}/aptkey.version"
 }
 
-# run with default (whatever this is)
+# run with default (whatever this is) in current CWD with relative paths
+ROOTDIR="./rootdir"
+KEYDIR="./keys"
 testrun
-# run with …
-setupgpgcommand 'gpg'
+
+# run with … and up the game with a strange CWD & absolute paths
+ROOTDIR="${TMPWORKINGDIRECTORY}/rootdir"
+KEYDIR="${TMPWORKINGDIRECTORY}/keys"
+mkdir inaccessible
+cd inaccessible
+chmod 600 ../inaccessible
+testfilestats "${TMPWORKINGDIRECTORY}/inaccessible" '%a' '=' '600'
+
+setupgpgcommand 'gpg' '1'
 testrun
-setupgpgcommand 'gpg2'
+setupgpgcommand 'gpg2' '2'
 testrun