[PATCH 5/5] btrfs-progs: misc-test: Add regression test for find-root gives empty result

From: Qu Wenruo <quwenruo@cn.fujitsu.com>
To: linux-btrfs@vger.kernel.org
Cc: dsterba@suse.cz
Subject: [PATCH 5/5] btrfs-progs: misc-test: Add regression test for find-root gives empty result
Date: Mon, 22 Feb 2016 14:59:57 +0800	[thread overview]
Message-ID: <1456124397-21403-6-git-send-email-quwenruo@cn.fujitsu.com> (raw)
In-Reply-To: <1456124397-21403-1-git-send-email-quwenruo@cn.fujitsu.com>

Add regression test for btrfs-find-root gives empty result even the fs
is OK.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
---
 .../first_meta_chunk.btrfs-image                    | Bin 0 -> 4096 bytes
 tests/misc-tests/012-find-root-no-result/test.sh    |  20 ++++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 tests/misc-tests/012-find-root-no-result/first_meta_chunk.btrfs-image
 create mode 100644 tests/misc-tests/012-find-root-no-result/test.sh

diff --git a/tests/misc-tests/012-find-root-no-result/first_meta_chunk.btrfs-image b/tests/misc-tests/012-find-root-no-result/first_meta_chunk.btrfs-image
new file mode 100644
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diff --git a/tests/misc-tests/012-find-root-no-result/test.sh b/tests/misc-tests/012-find-root-no-result/test.sh
new file mode 100644
index 0000000..4951633
--- /dev/null
+++ b/tests/misc-tests/012-find-root-no-result/test.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+# Regression test for case btrfs-find-root may print no result on a
+# recent fs or balanced fs, whose metadata chunk is the first chunk
+# and the only metadata chunk
+
+source $TOP/tests/common
+
+check_prereq btrfs-find-root
+check_prereq btrfs-image
+
+$TOP/btrfs-image -r first_meta_chunk.btrfs-image test.img || \
+	_fail "failed to extract first_meta_chunk.btrfs-image"
+
+result=$($TOP/btrfs-find-root test.img | sed '/^Superblock/d')
+
+if [ -z "$result" ]; then
+	_fail "btrfs-find-root failed to find tree root"
+fi
+
+rm test.img
-- 
2.7.1



