[PATCH 5/5] Btrfs-progs: add make test framework

[Josef Bacik <jbacik@fusionio.com>]

We need to start adding some sanity tests to btrfs-progs to make sure we aren't
breaking things with our patches.  The most important of these tools is btrfsck.
This patch gets things started by adding a basic btrfsck test that makes sure we
can fix a corruption problem we know we can fix.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
---
 Makefile                                        |    7 +++++
 tests/fsck-tests.sh                             |   31 +++++++++++++++++++++++
 tests/fsck-tests/001-bad-file-extent-bytenr.img |  Bin 0 -> 4096 bytes
 3 files changed, 38 insertions(+), 0 deletions(-)
 create mode 100644 tests/fsck-tests.sh
 create mode 100644 tests/fsck-tests/001-bad-file-extent-bytenr.img

diff --git a/Makefile b/Makefile
index 3fade14..0e812cc 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@ libbtrfs_objects = send-stream.o send-utils.o rbtree.o btrfs-list.o crc32c.o \
 libbtrfs_headers = send-stream.h send-utils.h send.h rbtree.h btrfs-list.h \
 	       crc32c.h list.h kerncompat.h radix-tree.h extent-cache.h \
 	       extent_io.h ioctl.h ctree.h btrfsck.h
+TESTS = fsck-tests.sh
 
 INSTALL = install
 prefix ?= /usr/local
@@ -123,6 +124,12 @@ $(BUILDDIRS):
 	@echo "Making all in $(patsubst build-%,%,$@)"
 	$(Q)$(MAKE) $(MAKEOPTS) -C $(patsubst build-%,%,$@)
 
+test:
+	$(Q)for t in $(TESTS); do \
+		echo "     [TEST]    $$t"; \
+		bash tests/$$t || exit 1; \
+	done
+
 #
 # NOTE: For static compiles, you need to have all the required libs
 # 	static equivalent available
diff --git a/tests/fsck-tests.sh b/tests/fsck-tests.sh
new file mode 100644
index 0000000..c1490bf
--- /dev/null
+++ b/tests/fsck-tests.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+#
+# loop through all of our bad images and make sure fsck repairs them properly
+#
+# It's GPL, same as everything else in this tree.
+#
+
+here=`pwd`
+
+_fail()
+{
+	echo "$*" | tee -a fsck-tests-results.txt
+	exit 1
+}
+
+rm -f fsck-tests-results.txt
+
+for i in $(find $here/tests/fsck-tests -name '*.img')
+do
+	echo "testing image $i" >> fsck-tests-results.txt
+	$here/btrfs-image -r $i test.img >> fsck-tests-results.txt 2>&1 \
+		|| _fail "restore failed"
+	$here/btrfsck test.img >> fsck-test-results.txt 2>&1
+	[ $? -eq 0 ] && _fail "btrfsck should have detected corruption"
+
+	$here/btrfsck --repair test.img >> fsck-test-results.txt 2>&1 || \
+		_fail "btrfsck should have repaired the image"
+
+	$here/btrfsck test.img >> fsck-test-results.txt 2>&1 || \
+		_fail "btrfsck did not correct corruption"
+done
diff --git a/tests/fsck-tests/001-bad-file-extent-bytenr.img b/tests/fsck-tests/001-bad-file-extent-bytenr.img
new file mode 100644
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-- 
1.7.7.6