tests: don't use the readlink option -f when not available (macOS)

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/tests/tests.sh b/tests/tests.sh
index 77da70a..658cbbb 100755 (executable)
--- a/tests/tests.sh
+++ b/tests/tests.sh
@@ -34,12 +34,21 @@ unset NIT_DIR
 
 # Get the first Java lib available
 if which_java=$(which javac 2>/dev/null); then
-       JAVA_HOME=$(dirname $(dirname $(readlink -f "$which_java")))
+
+       if sh -c "readlink -f ." 1>/dev/null 2>&1; then
+               READLINK="readlink -f"
+       else
+               # Darwin?
+               READLINK="readlink"
+       fi
+       JAVA_HOME=$(dirname $(dirname $($READLINK "$which_java")))
 
        shopt -s nullglob
        paths=`echo $JAVA_HOME/jre/lib/*/{client,server}/libjvm.so`
-       paths=($paths)
-       JNI_LIB_PATH=`dirname ${paths[0]}`
+       if [ -n "$paths" ]; then
+               paths=($paths)
+               JNI_LIB_PATH=`dirname ${paths[0]}`
+       fi
        shopt -u nullglob
 fi