btrfs-progs: tests: add 007-unsupported-block-sizes

Check if block sizes smaller than 4k expectedly fail to convert.

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/tests/convert-tests/007-unsupported-block-sizes/test.sh b/tests/convert-tests/007-unsupported-block-sizes/test.sh
new file mode 100755 (executable)
index 0000000..9ba1775
--- /dev/null
+++ b/tests/convert-tests/007-unsupported-block-sizes/test.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+# Check if block sizes smaller than 4k expectedly fail to convert
+
+source $TOP/tests/common
+source $TOP/tests/common.convert
+
+setup_root_helper
+prepare_test_dev 512M
+check_prereq btrfs-convert
+
+for bs in 1024 2048; do
+       default_mke2fs="mke2fs -t ext4 -b $bs"
+       convert_test_preamble '' "unsupported block size $bs" 16k "$default_mke2fs"
+       convert_test_prep_fs $default_mke2fs
+
+       run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/file bs=1M \
+               count=1 seek=1024 > /dev/null 2>&1
+
+       run_check_umount_test_dev
+       run_mustfail "$bs block converted" $TOP/btrfs-convert $TEST_DEV
+done