From 2100836188672d64adf0def8975dceea710ce51c Mon Sep 17 00:00:00 2001
From: Adam Buchbinder <abuchbinder@google.com>
Date: Wed, 21 May 2014 10:20:27 -0700
Subject: btrfs-progs: Add some simple end-to-end tests for btrfs-convert

These use the system's mke2fs, and don't require loop devices
or root privileges.

They don't pick up anything with the default flags right now,
but they do pick up some sanitizer issues when the tools are
compiled with any of -fsanitize={address,memory,thread}.

Signed-off-by: Adam Buchbinder <abuchbinder@google.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
---
 Makefile               |  2 +-
 tests/convert-tests.sh | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 tests/convert-tests.sh

diff --git a/Makefile b/Makefile
index fd30047e..8e14d483 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ 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
+TESTS = fsck-tests.sh convert-tests.sh
 
 INSTALL = install
 prefix ?= /usr/local
diff --git a/tests/convert-tests.sh b/tests/convert-tests.sh
new file mode 100644
index 00000000..87369c5e
--- /dev/null
+++ b/tests/convert-tests.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# convert ext2/3/4 images to btrfs images, and make sure the results are
+# clean.
+#
+
+here=`pwd`
+
+_fail()
+{
+	echo "$*" | tee -a convert-tests-results.txt
+	exit 1
+}
+
+rm -f convert-tests-results.txt
+rm -f test.img
+
+test(){
+	echo "     [TEST]    $1"
+        shift
+        echo "creating ext image with: $*" >> convert-tests-results.txt
+	# 256MB is the smallest acceptable btrfs image.
+	dd if=/dev/zero of=$here/test.img bs=1024 count=$((256*1024)) \
+		>> convert-tests-results.txt 2>&1 || _fail "dd failed"
+	$* -F $here/test.img >> convert-tests-results.txt 2>&1 \
+		|| _fail "filesystem create failed"
+	$here/btrfs-convert $here/test.img >> convert-tests-results.txt 2>&1 \
+		|| _fail "btrfs-convert failed"
+	$here/btrfsck $here/test.img >> convert-tests-results.txt 2>&1 \
+		|| _fail "btrfsck detected errors"
+}
+
+test "ext2, 4k blocksize" mke2fs -b 4096
+test "ext3, 4k blocksize" mke2fs -j -b 4096
+test "ext4, 4k blocksize" mke2fs -t ext4 -b 4096
-- 
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