tests: fix make distcheck

It is best to make dhcpd-pools used from PATH, which makes out of tree
build check to work.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

tests/Makefile.am

@@ -1,13 +1,3 @@
-EXTRA_DIST = \
-	bootp \
-	full-json \
-	confs \
-	expected \
-	leading0 \
-	leases \
-	same-twice \
-	simple
-
 TESTS = \
 	bootp \
 	full-json \
@@ -16,6 +6,14 @@ TESTS = \
 	simple \
 	v6
 
+EXTRA_DIST = \
+	confs \
+	expected \
+	leases \
+	$(TESTS)
+
+TESTS_ENVIRONMENT = top_srcdir=$(top_srcdir) PATH=../src$(PATH_SEPARATOR)$$PATH
+
 check-local: $(SHELL) $(top_srcdir)/tests/test.sh
 
 clean-local:

tests/full-json

@@ -2,13 +2,12 @@
 #
 # Minimal regression test suite.
 
-TEST_TOPDIR=$(cd $(dirname $0) && pwd)
-DHCPD_POOLS=$(readlink -f $TEST_TOPDIR/../src/dhcpd-pools)
-
 if [ ! -d outputs ]; then
 	mkdir outputs
 fi
 
-$DHCPD_POOLS -f J -c confs/same-twice -l leases/same-twice -o outputs/same-twice-json
-diff -u expected/same-twice-json outputs/same-twice-json
+dhcpd-pools -f J -c $top_srcdir/tests/confs/same-twice \
+		 -l $top_srcdir/tests/leases/same-twice \
+		 -o outputs/same-twice-json
+diff -u $top_srcdir/tests/expected/same-twice-json outputs/same-twice-json
 exit $?

tests/test.sh

@@ -2,14 +2,13 @@
 #
 # Minimal regression test suite.
 
-TEST_TOPDIR=$(cd $(dirname $0) && pwd)
 IAM=$(basename $0)
-DHCPD_POOLS=$(readlink -f $TEST_TOPDIR/../src/dhcpd-pools)
 
 if [ ! -d outputs ]; then
 	mkdir outputs
 fi
 
-$DHCPD_POOLS -c confs/$IAM -l leases/$IAM -o outputs/$IAM
-diff -u expected/$IAM outputs/$IAM
+dhcpd-pools -c $top_srcdir/tests/confs/$IAM \
+	    -l $top_srcdir/tests/leases/$IAM -o outputs/$IAM
+diff -u $top_srcdir/tests/expected/$IAM outputs/$IAM
 exit $?