[ostree: 31/70] libtest.sh: use G_TEST_SRCDIR, G_TEST_BUILDDIR to find resources

[Colin Walters <walters src gnome org>]

commit efb86ba9d32a038dd90f47f6e82f578e91b5fef5
Author: Simon McVittie <smcv debian org>
Date:   Thu Mar 31 18:29:44 2016 +0100

    libtest.sh: use G_TEST_SRCDIR, G_TEST_BUILDDIR to find resources
    
    This fixes the bug that in installed-tests that run testlib.sh under
    "bash -c" (i.e. the C and JS tests), $(dirname $0) is "." and we can't do
    the LD_PRELOAD correctly:
    
    ERROR: ld.so: object './libreaddir-rand.so' from LD_PRELOAD cannot be
    preloaded (cannot open shared object file): ignored.
    
    Similarly, those tests can't copy gpghome correctly.
    
    This also removes the confusing situation that SRCDIR in libtest.sh
    (which is ${top_srcdir}/tests) does not mean the same thing as SRCDIR
    in test-abi.sh (which is just ${top_srcdir}).
    
    Signed-off-by: Simon McVittie <smcv debian org>
    
    Closes: #234
    Approved by: cgwalters

 tests/libtest.sh             |   18 ++++++++++++++----
 tests/test-archivez.sh       |    2 +-
 tests/test-delta.sh          |    4 ++--
 tests/test-pull-archive-z.sh |    2 +-
 4 files changed, 18 insertions(+), 8 deletions(-)
---
diff --git a/tests/libtest.sh b/tests/libtest.sh
index 03b498a..aaa553a 100755
--- a/tests/libtest.sh
+++ b/tests/libtest.sh
@@ -17,7 +17,17 @@
 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 # Boston, MA 02111-1307, USA.
 
-SRCDIR=$(dirname $0)
+if [ -n "${G_TEST_SRCDIR:-}" ]; then
+  test_srcdir="${G_TEST_SRCDIR}/tests"
+else
+  test_srcdir=$(dirname $0)
+fi
+
+if [ -n "${G_TEST_BUILDDIR:-}" ]; then
+  test_builddir="${G_TEST_BUILDDIR}/tests"
+else
+  test_builddir=$(dirname $0)
+fi
 
 assert_not_reached () {
     echo $@ 1>&2; exit 1
@@ -54,7 +64,7 @@ export TEST_GPG_KEYID_3="DF444D67"
 # homedir in order to create lockfiles.  Work around
 # this by copying locally.
 echo "Copying gpghome to ${test_tmpdir}"
-cp -a ${SRCDIR}/gpghome ${test_tmpdir}
+cp -a "${test_srcdir}/gpghome" ${test_tmpdir}
 export TEST_GPG_KEYHOME=${test_tmpdir}/gpghome
 export OSTREE_GPG_HOME=${test_tmpdir}/gpghome/trusted
 
@@ -63,9 +73,9 @@ if test -n "${OT_TESTS_DEBUG:-}"; then
 fi
 
 if test -n "${OT_TESTS_VALGRIND:-}"; then
-    CMD_PREFIX="env G_SLICE=always-malloc valgrind -q --leak-check=full --num-callers=30 
--suppressions=${SRCDIR}/ostree-valgrind.supp"
+    CMD_PREFIX="env G_SLICE=always-malloc valgrind -q --leak-check=full --num-callers=30 
--suppressions=${test_srcdir}/ostree-valgrind.supp"
 else
-    CMD_PREFIX="env LD_PRELOAD=${SRCDIR}/libreaddir-rand.so"
+    CMD_PREFIX="env LD_PRELOAD=${test_builddir}/libreaddir-rand.so"
 fi
 
 assert_streq () {
diff --git a/tests/test-archivez.sh b/tests/test-archivez.sh
index 999157d..b879328 100755
--- a/tests/test-archivez.sh
+++ b/tests/test-archivez.sh
@@ -25,7 +25,7 @@ echo '1..11'
 
 setup_test_repository "archive-z2"
 
-. ${SRCDIR}/archive-test.sh
+. ${test_srcdir}/archive-test.sh
 
 cd ${test_tmpdir}
 mkdir repo2
diff --git a/tests/test-delta.sh b/tests/test-delta.sh
index a6fd6f8..411e9b0 100755
--- a/tests/test-delta.sh
+++ b/tests/test-delta.sh
@@ -130,9 +130,9 @@ assert_streq "${totalsize_orig}" "${totalsize_swapped}"
 
 echo 'ok generate + show endian swapped'
 
-tar xf ${SRCDIR}/pre-endian-deltas-repo-big.tar.xz
+tar xf ${test_srcdir}/pre-endian-deltas-repo-big.tar.xz
 mv pre-endian-deltas-repo{,-big}
-tar xf ${SRCDIR}/pre-endian-deltas-repo-little.tar.xz
+tar xf ${test_srcdir}/pre-endian-deltas-repo-little.tar.xz
 mv pre-endian-deltas-repo{,-little}
 legacy_origrev=$(${CMD_PREFIX} ostree --repo=pre-endian-deltas-repo-big rev-parse main^)
 legacy_newrev=$(${CMD_PREFIX} ostree --repo=pre-endian-deltas-repo-big rev-parse main)
diff --git a/tests/test-pull-archive-z.sh b/tests/test-pull-archive-z.sh
index 2ea2387..66f8873 100755
--- a/tests/test-pull-archive-z.sh
+++ b/tests/test-pull-archive-z.sh
@@ -23,4 +23,4 @@ set -euo pipefail
 
 setup_fake_remote_repo1 "archive-z2"
 
-. ${SRCDIR}/pull-test.sh
+. ${test_srcdir}/pull-test.sh