2 files changed, 28 insertions, 0 deletions
diff --git a/cli-tests/t_not_supported.out b/cli-tests/t_not_supported.out
new file mode 100644
index 0000000..8af840c
--- /dev/null
+++ b/cli-tests/t_not_supported.out
@@ -0,0 +1,11 @@
+
+# Mount tmpfs
+
+# Create fscrypt metadata on tmpfs
+Metadata directories created at "MNT/.fscrypt".
+
+# Try to encrypt a directory on tmpfs
+[ERROR] fscrypt encrypt: get encryption policy MNT/dir:
+                         encryption not supported
+
+Encryption for this type of filesystem is not supported on this kernel version.
diff --git a/cli-tests/t_not_supported.sh b/cli-tests/t_not_supported.sh
new file mode 100755
index 0000000..53a096a
--- /dev/null
+++ b/cli-tests/t_not_supported.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# Test that fscrypt fails when the filesystem doesn't support encryption.
+
+cd "$(dirname "$0")"
+. common.sh
+
+_print_header "Mount tmpfs"
+umount "$MNT"
+mount tmpfs -t tmpfs -o size=128m "$MNT"
+
+_print_header "Create fscrypt metadata on tmpfs"
+fscrypt setup "$MNT"
+
+_print_header "Try to encrypt a directory on tmpfs"
+mkdir "$MNT/dir"
+_expect_failure "fscrypt encrypt '$MNT/dir'"