Re: [PATCH 8/8] gpg-interface t: extend the existing GPG tests with GPGSM

Add test cases to cover the new X509/gpgsm support. Most of them
resemble existing ones. They just switch the format to X509 and set the
signingkey when creating signatures. Validation of signatures does not
need any configuration of git, it does need gpgsm to be configured to
trust the key(-chain).
We generate a self-signed key for committer@example.com and configure
gpgsm to trust it.

Signed-off-by: Henning Schild <redacted>
---
 t/lib-gpg.sh               |  9 ++++++-
 t/lib-gpg/gpgsm-gen-key.in |  6 +++++
 t/t4202-log.sh             | 66 ++++++++++++++++++++++++++++++++++++++++++++++
 t/t5534-push-signed.sh     | 52 ++++++++++++++++++++++++++++++++++++
 t/t7003-filter-branch.sh   | 15 +++++++++++
 t/t7030-verify-tag.sh      | 47 +++++++++++++++++++++++++++++++--
 t/t7600-merge.sh           | 31 ++++++++++++++++++++++
 7 files changed, 223 insertions(+), 3 deletions(-)
 create mode 100644 t/lib-gpg/gpgsm-gen-key.in

diff --git a/t/lib-gpg.sh b/t/lib-gpg.sh
index a5d3b2cba..9dcb4e990 100755
--- a/t/lib-gpg.sh
+++ b/t/lib-gpg.sh

@@ -38,7 +38,14 @@ then
 			"$TEST_DIRECTORY"/lib-gpg/ownertrust &&
 		gpg --homedir "${GNUPGHOME}" </dev/null >/dev/null 2>&1 \
 			--sign -u committer@example.com &&
-		test_set_prereq GPG
+		test_set_prereq GPG &&
+		echo | gpgsm --homedir "${GNUPGHOME}" -o "$TEST_DIRECTORY"/lib-gpg/gpgsm.crt.user --passphrase-fd 0 --pinentry-mode loopback --generate-key --batch "$TEST_DIRECTORY"/lib-gpg/gpgsm-gen-key.in &&
+		gpgsm --homedir "${GNUPGHOME}" --import "$TEST_DIRECTORY"/lib-gpg/gpgsm.crt.user &&
+		gpgsm --homedir "${GNUPGHOME}" -K | grep fingerprint: | cut -d" " -f4 | tr -d '\n' > ${GNUPGHOME}/trustlist.txt &&
+		echo " S relax" >> ${GNUPGHOME}/trustlist.txt &&
+		(gpgconf --kill gpg-agent >/dev/null 2>&1 || : ) &&
+		echo hello | gpgsm --homedir "${GNUPGHOME}" -u committer@example.com -o /dev/null --sign - 2>&1 &&
+		test_set_prereq GPGSM