linux-ext4 - [PATCH 69/74] Subject: [PATCH] tests: test what happens if we run out of space

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Date:	Tue, 10 Dec 2013 17:26:04 -0800
From:	"Darrick J. Wong" <darrick.wong@...cle.com>
To:	tytso@....edu, darrick.wong@...cle.com
Cc:	linux-ext4@...r.kernel.org
Subject: [PATCH 69/74] Subject: [PATCH] tests: test what happens if we run out
 of space

Make sure we test behavior when running out of space.

Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
---
 tests/metadata-checksum-test.sh |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)


diff --git a/tests/metadata-checksum-test.sh b/tests/metadata-checksum-test.sh
index 0703501..75b92a0 100755
--- a/tests/metadata-checksum-test.sh
+++ b/tests/metadata-checksum-test.sh
@@ -3164,6 +3164,26 @@ umount "${MNT}"
 ${fsck_cmd} -f -n "${DEV}"
 }
 
+##########################
+function enospc_test {
+msg "enospc_test"
+$VALGRIND ${E2FSPROGS}/misc/mke2fs -T ext4icsum $MKFS_OPTS $MKFS_FEATURES -F "${DEV}" 12800
+test -z "$NO_CSUM" && $VALGRIND ${E2FSPROGS}/misc/tune2fs -O metadata_csum $DEV
+${E2FSPROGS}/misc/dumpe2fs -h $DEV 2> /dev/null | egrep -q "^Filesystem state:[ ]*clean$" || ${fsck_cmd} -fDy $DEV || true
+
+${mount_cmd} ${MOUNT_OPTS} "${DEV}" "${MNT}" -t ext4 -o journal_checksum
+dd if=/dev/zero of="${MNT}/a" || true
+dd if=/dev/zero of="${MNT}/b" || true
+ls -la "${MNT}/"
+for i in 1 2 3; do
+	XYZ="$(dd if=/dev/zero of="${MNT}/b" 2>&1 || true)"
+	echo "${XYZ}" | grep -c "No space left"
+	ls -la "${MNT}/"
+done
+umount "${MNT}"
+${fsck_cmd} -f -n "${DEV}"
+}
+
 # This test should be the last one (before speed tests, anyway)
 
 #### ALL SPEED TESTS GO AT THE END

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