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-rwxr-xr-xshare/spack/qa/setup-env-test.sh3
1 files changed, 3 insertions, 0 deletions
diff --git a/share/spack/qa/setup-env-test.sh b/share/spack/qa/setup-env-test.sh
index b75d006e75..f572166b05 100755
--- a/share/spack/qa/setup-env-test.sh
+++ b/share/spack/qa/setup-env-test.sh
@@ -163,6 +163,9 @@ unuse() {
# Make sure no environment is active
unset SPACK_ENV
+# fail with undefined variables
+set -u
+
# Source setup-env.sh before tests
. share/spack/setup-env.sh