diff --git a/tests/gpg/pubring.gpg b/tests/gpg/pubring.gpg
new file mode 100644
index 0000000000000000000000000000000000000000..1968054ccc16b968cd6eba0f5ffdcf7919a26f11
GIT binary patch
literal 597
zc$@)M0;>I)0SyF7HC%iF2mtEFakUSVrtJp%K+xlYBCYVj(^~!SQAP*%7_|~0>TDt&
z@rZ_lX-SkC8Ng-#rRKxP%Zt;308xCS;S2x8t{oXj^iAHb95z}DpV)fZLKg>dneCmN
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diff --git a/tests/gpg/random_seed b/tests/gpg/random_seed
new file mode 100644
index 0000000000000000000000000000000000000000..87e0fc699f09c8eaec8d3f34cd5e7c4a287cf85a
GIT binary patch
literal 600
zc$@)P0;m1JgJkYudlsPk<jsCHi_#BlDLO08yRpQFTctBJ@&6&Djyf(=CS>7G_{hy}
z(9_u$sIps{T+wb+;`kZGose==@U{zgz9vLDLWWDE37GIejpWl!|0IU}c?j$K+j*Rf
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diff --git a/tests/gpg/secring.gpg b/tests/gpg/secring.gpg
new file mode 100644
index 0000000000000000000000000000000000000000..aca03615aa3cc5915330378ef9590d3d25fe611b
GIT binary patch
literal 1248
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diff --git a/tests/gpg/trustdb.gpg b/tests/gpg/trustdb.gpg
new file mode 100644
index 0000000000000000000000000000000000000000..4008cdab6dbf5976ed84e1bd48fd954edd0bd6df
GIT binary patch
literal 1280
zc${NQFGy!*W@Ke#U|{evjj3h84j8#`NT7pJb))Jq)X5Eyy`$=eojM+dhSR^3+@~`O
xY&Gq*Tcpdm+)w4>CpL(rJVG5W17G+x=V>!}{~YYC+iiDPMtj+*xJot*^8gN&7Z?Bl

diff --git a/tests/hghave b/tests/hghave
--- a/tests/hghave
+++ b/tests/hghave
@@ -146,6 +146,9 @@ def has_symlink():
 def has_tla():
     return matchoutput('tla --version 2>&1', r'The GNU Arch Revision')
 
+def has_gpg():
+    return matchoutput('gpg --version 2>&1', r'GnuPG')
+
 def has_unix_permissions():
     d = tempfile.mkdtemp(prefix=tempprefix, dir=".")
     try:
@@ -183,6 +186,7 @@ checks = {
     "execbit": (has_executablebit, "executable bit"),
     "fifo": (has_fifo, "named pipes"),
     "git": (has_git, "git command line client"),
+    "gpg": (has_gpg, "gpg client"),
     "hotshot": (has_hotshot, "python hotshot module"),
     "icasefs": (has_icasefs, "case insensitive file system"),
     "inotify": (has_inotify, "inotify extension support"),
diff --git a/tests/test-gpg b/tests/test-gpg
new file mode 100755
--- /dev/null
+++ b/tests/test-gpg
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+"$TESTDIR/hghave" gpg || exit 80
+
+cat <<EOF >> $HGRCPATH
+[extensions]
+gpg=
+
+[gpg]
+cmd=gpg --no-permission-warning --homedir $TESTDIR/gpg
+EOF
+
+hg init r
+cd r
+echo foo > foo
+hg ci -Amfoo
+
+echo '% no signatures'
+hg sigs
+
+echo '% hg sign 0'
+hg sign 0
+
+echo '% hg sigs'
+hg sigs
+
+echo '% hg sigcheck 0'
+hg sigcheck 0
diff --git a/tests/test-gpg.out b/tests/test-gpg.out
new file mode 100644
--- /dev/null
+++ b/tests/test-gpg.out
@@ -0,0 +1,9 @@
+adding foo
+% no signatures
+% hg sign 0
+Signing 0:e63c23eaa88a
+% hg sigs
+hgtest                             0:e63c23eaa88ae77967edcf4ea194d31167c478b0
+% hg sigcheck 0
+e63c23eaa88a is signed by:
+ hgtest