test-kernel-install: respect TMPDIR in expected output

diff --git a/src/kernel-install/test-kernel-install.sh b/src/kernel-install/test-kernel-install.sh
index 922c593e6008c54c55eed82ea182c047d395415e..e6979727298f35a6c4d5fabdf4f737028d782564 100755 (executable)
--- a/src/kernel-install/test-kernel-install.sh
+++ b/src/kernel-install/test-kernel-install.sh
@@ -318,7 +318,7 @@ diff -u <(echo "$output") - >&2 <<EOF
                "KERNEL_INSTALL_LAYOUT=other",
                "KERNEL_INSTALL_INITRD_GENERATOR=none",
                "KERNEL_INSTALL_UKI_GENERATOR=",
-               "KERNEL_INSTALL_STAGING_AREA=/var/tmp/kernel-install.staging.XXXXXX"
+               "KERNEL_INSTALL_STAGING_AREA=${TMPDIR:-/var/tmp}/kernel-install.staging.XXXXXX"
        ]
 }
 EOF