[PATCH 4/5] tests: check decoding of btrfs RDWR ioctls returned data

[jeffm at suse.com]

From: Jeff Mahoney <jeffm at suse.com>

* tests/btrfs-vw.test: New file.
* tests/btrfs-w.test: New file.
* tests/Makefile.am (DECODER_TESTS): Add btrfs-w.test and btrfs-vw.test.
---
 tests/Makefile.am   |  2 ++
 tests/btrfs-vw.test | 29 +++++++++++++++++++++++++++++
 tests/btrfs-w.test  | 29 +++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100755 tests/btrfs-vw.test
 create mode 100755 tests/btrfs-w.test

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 4c1ecdc..d52b270 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -372,6 +372,8 @@ DECODER_TESTS = \
 	brk.test \
 	btrfs.test \
 	btrfs-v.test \
+	btrfs-w.test \
+	btrfs-vw.test \
 	caps.test \
 	chmod.test \
 	chown.test \
diff --git a/tests/btrfs-vw.test b/tests/btrfs-vw.test
new file mode 100755
index 0000000..c7e40ad
--- /dev/null
+++ b/tests/btrfs-vw.test
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# Check verbose decoding of btrfs ioctl w/ live ioctls.
+
+# WARNING: USE OF THIS TEST WILL MODIFY AN EXISTING BTRFS FILE SYSTEM
+
+# Typical usage:
+# mkfs.btrfs <dev>
+# mount <dev> /mnt
+# BTRFS_MOUNTPOINT=/mnt make check TESTS="btrfs-vw"
+# umount /mnt
+
+. "${srcdir=.}/init.sh"
+
+if [ -z "${BTRFS_MOUNTPOINT}" ]; then
+    skip_ "\$BTRFS_MOUNTPOINT not set"
+elif [ ! -d "${BTRFS_MOUNTPOINT}" ]; then
+    skip_ "\$BTRFS_MOUNTPOINT does not point to a directory"
+fi
+
+run_prog ./btrfs -v -w "${BTRFS_MOUNTPOINT}" > /dev/null
+run_strace -a16 -veioctl $args > "$EXP"
+check_prog grep
+grep -v '^ioctl([012],' < "$LOG" > "$OUT"
+match_diff "$OUT" "$EXP"
+
+rm -f "$EXP" "$OUT"
+
+exit 0
diff --git a/tests/btrfs-w.test b/tests/btrfs-w.test
new file mode 100755
index 0000000..6238dca
--- /dev/null
+++ b/tests/btrfs-w.test
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# Check decoding of btrfs ioctl w/ live ioctls.
+
+# WARNING: USE OF THIS TEST WILL MODIFY AN EXISTING BTRFS FILE SYSTEM
+
+# Typical usage:
+# mkfs.btrfs <dev>
+# mount <dev> /mnt
+# BTRFS_MOUNTPOINT=/mnt make check TESTS="btrfs-w"
+# umount /mnt
+
+. "${srcdir=.}/init.sh"
+
+if [ -z "${BTRFS_MOUNTPOINT}" ]; then
+    skip_ "\$BTRFS_MOUNTPOINT not set"
+elif [ ! -d "${BTRFS_MOUNTPOINT}" ]; then
+    skip_ "\$BTRFS_MOUNTPOINT does not point to a directory"
+fi
+
+run_prog ./btrfs -w "${BTRFS_MOUNTPOINT}" > /dev/null
+run_strace -a16 -eioctl $args > "$EXP"
+check_prog grep
+grep -v '^ioctl([012],' < "$LOG" > "$OUT"
+match_diff "$OUT" "$EXP"
+
+rm -f "$EXP" "$OUT"
+
+exit 0
-- 
2.7.1