tests.sh: add NIT_TESTING_ID with the same semantic than with nitunit

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/tests/tests.sh b/tests/tests.sh
index 84ba34a..d11c60a 100755 (executable)
--- a/tests/tests.sh
+++ b/tests/tests.sh
@@ -21,6 +21,8 @@
 export LANG=C
 export LC_ALL=C
 export NIT_TESTING=true
+# Use the pid as a collision prevention
+export NIT_TESTING_ID=$$
 export NIT_SRAND=0
 
 unset NIT_DIR