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+From: David Bremner <david@tethera.net>\r
+To: notmuch@notmuchmail.org\r
+Subject: [Patch v6 6/6] test: verify tag backup generated by database upgrade\r
+Date: Thu, 3 Apr 2014 16:41:23 -0300\r
+Message-Id: <1396554083-3892-7-git-send-email-david@tethera.net>\r
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+\r
+'pre upgrade dump' is not much of a test, but at least this way we get\r
+somewhat sensible behaviour if it fails.\r
+---\r
+ test/T530-upgrade.sh | 6 ++++++\r
+ 1 file changed, 6 insertions(+)\r
+\r
+diff --git a/test/T530-upgrade.sh b/test/T530-upgrade.sh\r
+index d46e3d1..7d5d5aa 100755\r
+--- a/test/T530-upgrade.sh\r
++++ b/test/T530-upgrade.sh\r
+@@ -25,6 +25,8 @@ test_begin_subtest "path: search does not work with old database version"\r
+ output=$(notmuch search path:foo)\r
+ test_expect_equal "$output" ""\r
+ \r
++test_expect_success 'pre upgrade dump' 'notmuch dump | sort > pre-upgrade-dump'\r
++\r
+ test_begin_subtest "database upgrade from format version 1"\r
+ output=$(notmuch new | sed -e 's/^Backing up tags to .*$/Backing up tags to FILENAME/')\r
+ test_expect_equal "$output" "\\r
+@@ -34,6 +36,10 @@ Backing up tags to FILENAME\r
+ Your notmuch database has now been upgraded to database format version 2.\r
+ No new mail."\r
+ \r
++test_begin_subtest "tag backup matches pre-upgrade dump"\r
++gunzip -c ${MAIL_DIR}/.notmuch/dump-*.gz | sort > backup-dump\r
++test_expect_equal_file pre-upgrade-dump backup-dump\r
++\r
+ test_begin_subtest "folder: no longer matches in the middle of path"\r
+ output=$(notmuch search folder:baz)\r
+ test_expect_equal "$output" ""\r
+-- \r
+1.9.0\r
+\r