tests: Harmonize temporary and socket directory handling.

* tests/gpgscm/tests.scm (mkdtemp): Do not magically obey the
environment variable 'TMP', make sure to always return an absolute
path.
* tests/gpgme/Makefile.am (TMP): Drop variable.
(TESTS_ENVIRONMENT): Drop 'TMP'.
* tests/gpgme/gpgme-defs.scm (create-gpgmehome): Start the agent.  Do
not create private key store, the agent does that for us.
* tests/gpgsm/Makefile.am (TMP): Drop variable.
(TESTS_ENVIRONMENT): Drop 'TMP'.
* tests/gpgme/gpgme-defs.scm (create-gpgsmhome): Start the agent.  Do
not create private key store, the agent does that for us.
* tests/migrations/Makefile.am (TMP): Drop variable.
(TESTS_ENVIRONMENT): Drop 'TMP'.
* tests/migrations/common.scm (gpgconf): New variable.
(run-test): Create and remove socket directory.
* tests/migrations/extended-pkf.scm (src-tarball): Remove variable.
(setup): Remove function.
(trigger-migration): Likewise.
Use 'run-test' to execute the test.
* tests/migrations/from-classic.scm (src-tarball): Remove variable.
(setup): Remove function.
Use 'run-test' to execute the tests.
* tests/openpgp/Makefile.am (TMP): Drop variable.
(TESTS_ENVIRONMENT): Drop 'TMP'.
* tests/openpgp/README: Do not mention 'TMP'.
* tests/openpgp/defs.scm (with-home-directory): New macro.
(create-legacy-gpghome): Do not create private key store, the agent
does that for us.
(start-agent): Make sure to terminate the right agent with 'atexit'.
--

Previously, the test suite relied upon creating home directories in
'/tmp'.  This has been problematic in some build environments,
although POSIX mandates that '/tmp' must be available.

We now rely on 'gpgconf --create-socketdir' to create a suitable
socket directory for us.  This allows us to get rid of some cruft.  It
also aligns the environment the tests are run in closer with the
environment that we intend that GnuPG runs in.

Signed-off-by: Justus Winter <justus@g10code.com>

tests/gpgme/Makefile.am

@@ -28,12 +28,9 @@ include $(top_srcdir)/am/cmacros.am
 
 AM_CFLAGS =
 
-TMP ?= /tmp
-
 TESTS_ENVIRONMENT = LC_ALL=C \
 	EXEEXT=$(EXEEXT) \
 	PATH=../gpgscm:$(PATH) \
-	TMP=$(TMP) \
 	srcdir=$(abs_srcdir) \
 	objdir=$(abs_top_builddir) \
 	GPGSCM_PATH=$(abs_top_srcdir)/tests/gpgscm:$(abs_top_srcdir)/tests/openpgp:$(abs_top_srcdir)/tests/gpgme

tests/gpgme/gpgme-defs.scm

@@ -54,7 +54,8 @@
   (create-file
    "gpg-agent.conf"
    (string-append "pinentry-program " (tool 'pinentry)))
-  (mkdir "private-keys-v1.d" "-rwx")
+
+  (start-agent)
 
   (log "Storing private keys")
   (for-each

tests/gpgscm/tests.scm

@@ -268,14 +268,13 @@
 ;; Make a temporary directory.  If arguments are given, they are
 ;; joined using path-join, and must end in a component ending in
 ;; "XXXXXX".  If no arguments are given, a suitable location and
-;; generic name is used.
+;; generic name is used.  Returns an absolute path.
 (define (mkdtemp . components)
-  (_mkdtemp (if (null? components)
+  (canonical-path (_mkdtemp (if (null? components)
-		(path-join (getenv "TMP")
 				(string-append "gpgscm-" (get-isotime) "-"
 					       (basename-suffix *scriptname* ".scm")
-					  "-XXXXXX"))
+					       "-XXXXXX")
-		(apply path-join components))))
+				(apply path-join components)))))
 
 (define-macro (with-temporary-working-directory . expressions)
   (let ((tmp-sym (gensym)))

tests/gpgsm/Makefile.am

@@ -28,12 +28,9 @@ include $(top_srcdir)/am/cmacros.am
 
 AM_CFLAGS =
 
-TMP ?= /tmp
-
 TESTS_ENVIRONMENT = LC_ALL=C \
 	EXEEXT=$(EXEEXT) \
 	PATH=../gpgscm:$(PATH) \
-	TMP=$(TMP) \
 	srcdir=$(abs_srcdir) \
 	objdir=$(abs_top_builddir) \
 	GPGSCM_PATH=$(abs_top_srcdir)/tests/gpgscm:$(abs_top_srcdir)/tests/openpgp:$(abs_top_srcdir)/tests/gpgsm

tests/gpgsm/gpgsm-defs.scm

@@ -73,6 +73,7 @@
 	       "faked-system-time 1008241200")
   (create-file "gpg-agent.conf"
 	       (string-append "pinentry-program " (tool 'pinentry)))
+  (start-agent)
   (create-file
    "trustlist.txt"
    "32100C27173EF6E9C4E9A25D3D69F86D37A4F939"
@@ -80,7 +81,6 @@
    "3CF405464F66ED4A7DF45BBDD1E4282E33BDB76E S")
 
   (log "Storing private keys")
-  (mkdir "private-keys-v1.d" "-rwx")
   (for-each
    (lambda (name)
      (file-copy (in-srcdir name)

tests/migrations/Makefile.am

@@ -28,12 +28,9 @@ include $(top_srcdir)/am/cmacros.am
 
 AM_CFLAGS =
 
-TMP ?= /tmp
-
 TESTS_ENVIRONMENT = GPG_AGENT_INFO= LC_ALL=C \
 	EXEEXT=$(EXEEXT) \
 	PATH=../gpgscm:$(PATH) \
-	TMP=$(TMP) \
 	srcdir=$(abs_srcdir) \
 	objdir=$(abs_top_builddir) \
 	GPGSCM_PATH=$(abs_top_srcdir)/tests/gpgscm:$(abs_top_srcdir)/tests/migrations

tests/migrations/common.scm

@@ -26,6 +26,7 @@
   (string-append executable (getenv "EXEEXT")))
 
 ;; We may not use a relative name for gpg-agent.
+(define gpgconf (path-join (getenv "objdir") "tools" (qualify "gpgconf")))
 (define GPG-AGENT (path-join (getenv "objdir") "agent" (qualify "gpg-agent")))
 (define GPG `(,(path-join (getenv "objdir") "g10" (qualify "gpg"))
 	      --no-permission-warning --no-greeting
@@ -51,4 +52,9 @@
    (info message)
    (untar-armored src-tarball)
    (setenv "GNUPGHOME" (getcwd) #t)
-   (test (getcwd))))
+
+   (catch (log "Warning: Creating socket directory failed:" (car *error*))
+	  (call-popen `(,gpgconf --create-socketdir) ""))
+   (test (getcwd))
+   (catch (log "Warning: Removing socket directory failed.")
+	  (call-popen `(,gpgconf --remove-socketdir) ""))))

tests/migrations/extended-pkf.scm

@@ -22,15 +22,6 @@
 (catch (skip "gpgtar not built")
        (call-check `(,GPGTAR --help)))
 
-(define src-tarball (in-srcdir "extended-pkf.tar.asc"))
-
-(define (setup)
-  (untar-armored src-tarball)
-  (setenv "GNUPGHOME" (getcwd) #t))
-
-(define (trigger-migration)
-  (call-check `(,@GPG --list-secret-keys)))
-
 (define (assert-keys-usable)
   (for-each
    (lambda (keyid)
@@ -38,9 +29,10 @@
 	    (call-check `(,@GPG --list-secret-keys ,keyid))))
    '("C40FDECF" "ECABF51D")))
 
-(info "Testing the extended private key format ...")
+(run-test
-(with-temporary-working-directory
+ "Testing the extended private key format ..."
- (setup)
+ (in-srcdir "extended-pkf.tar.asc")
- (assert-keys-usable))
+ (lambda (gpghome)
+   (assert-keys-usable)))
 
 ;; XXX try changing a key, and check that the format is not changed.

tests/migrations/from-classic.scm

@@ -22,12 +22,6 @@
 (catch (skip "gpgtar not built")
        (call-check `(,GPGTAR --help)))
 
-(define src-tarball (in-srcdir "from-classic.tar.asc"))
-
-(define (setup)
-  (untar-armored src-tarball)
-  (setenv "GNUPGHOME" (getcwd) #t))
-
 (define (trigger-migration)
   (call-check `(,@GPG --list-secret-keys)))
 
@@ -41,24 +35,27 @@
 	    (call-check `(,@GPG --list-secret-keys ,keyid))))
    '("D74C5F22" "C40FDECF" "ECABF51D")))
 
-(info "Testing a clean migration ...")
+(run-test
-(with-temporary-working-directory
+ "Testing a clean migration ..."
- (setup)
+ (in-srcdir "from-classic.tar.asc")
+ (lambda (gpghome)
    (trigger-migration)
- (assert-migrated))
+   (assert-migrated)))
 
-(info "Testing a migration with existing private-keys-v1.d ...")
+(run-test
-(with-temporary-working-directory
+ "Testing a migration with existing private-keys-v1.d ..."
- (setup)
+ (in-srcdir "from-classic.tar.asc")
+ (lambda (gpghome)
    (mkdir "private-keys-v1.d" "-rwx")
    (trigger-migration)
- (assert-migrated))
+   (assert-migrated)))
 
-(info "Testing a migration with existing but weird private-keys-v1.d ...")
+(run-test
-(with-temporary-working-directory
+ "Testing a migration with existing but weird private-keys-v1.d ..."
- (setup)
+ (in-srcdir "from-classic.tar.asc")
+ (lambda (gpghome)
    (mkdir "private-keys-v1.d" "")
    (trigger-migration)
- (assert-migrated))
+   (assert-migrated)))
 
 ;; XXX Check a case where the migration fails.

tests/openpgp/Makefile.am

@@ -33,12 +33,9 @@ noinst_PROGRAMS = fake-pinentry
 
 fake_pinentry_SOURCES = fake-pinentry.c
 
-TMP ?= /tmp
-
 TESTS_ENVIRONMENT = LC_ALL=C \
 	EXEEXT=$(EXEEXT) \
 	PATH=../gpgscm:$(PATH) \
-	TMP=$(TMP) \
 	srcdir=$(abs_srcdir) \
 	objdir=$(abs_top_builddir) \
 	GPGSCM_PATH=$(abs_top_srcdir)/tests/gpgscm:$(abs_top_srcdir)/tests/openpgp

tests/openpgp/README

@@ -30,7 +30,7 @@ This is a bit tricky because one needs to manually set some
 environment variables.  We should make that easier.  See discussion
 below.  From your build directory, do:
 
-  obj $ TMP=/tmp srcdir=<path to>/tests/openpgp \
+  obj $ srcdir=<path to>/tests/openpgp \
         GPGSCM_PATH=<path to>/tests/gpgscm:<path to>/tests/openpgp \
         $(pwd)/tests/gpgscm/gpgscm [gpgscm args] \
         run-tests.scm [test suite runner args]

tests/openpgp/defs.scm

@@ -278,6 +278,15 @@
 ;; GnuPG helper.
 ;;
 
+;; Evaluate a sequence of expressions with the given home directory.
+(define-macro (with-home-directory gnupghome . expressions)
+  (let ((original-home-directory (gensym)))
+    `(let ((,original-home-directory (getenv "GNUPGHOME")))
+       (dynamic-wind
+	   (lambda () (setenv "GNUPGHOME" ,gnupghome #t))
+	   (lambda () ,@expressions)
+	   (lambda () (setenv "GNUPGHOME" ,original-home-directory #t))))))
+
 ;; Evaluate a sequence of expressions with an ephemeral home
 ;; directory.
 (define-macro (with-ephemeral-home-directory . expressions)
@@ -364,7 +373,6 @@
 
 (define (create-legacy-gpghome)
   (create-sample-files)
-  (mkdir "private-keys-v1.d" "-rwx")
 
   (log "Storing private keys")
   (for-each
@@ -434,7 +442,10 @@
 ;; Create the socket dir and start the agent.
 (define (start-agent)
   (log "Starting gpg-agent...")
-  (atexit stop-agent)
+  (let ((gnupghome (getenv "GNUPGHOME")))
+    (atexit (lambda ()
+	      (with-home-directory gnupghome
+				   (stop-agent)))))
   (catch (log "Warning: Creating socket directory failed:" (car *error*))
 	 (call-popen `(,(tool 'gpgconf) --create-socketdir) ""))
   (call-check `(,(tool 'gpg-connect-agent) --verbose

tests/openpgp/setup.scm

@@ -25,6 +25,7 @@
 (with-ephemeral-home-directory
  (chdir (getenv "GNUPGHOME"))
  (create-gpghome)
+ (start-agent)
  (create-legacy-gpghome)
  (stop-agent)
  (call-check `(,(tool 'gpgtar) --create --output ,(cadr *args*) ".")))