[PATCH] test: add nontrivial test for restore --accumulate.

diff --git a/5c/1a4cdabcf8e4a50db22beab4536162938ae668 b/5c/1a4cdabcf8e4a50db22beab4536162938ae668
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+++ b/5c/1a4cdabcf8e4a50db22beab4536162938ae668
@@ -0,0 +1,98 @@
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+From: david@tethera.net\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH] test: add nontrivial test for restore --accumulate.\r
+Date: Fri, 16 Nov 2012 08:31:19 -0400\r
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+Cc: David Bremner <bremner@debian.org>\r
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+From: David Bremner <bremner@debian.org>\r
+\r
+It seems we have never tested the case that restore --accumulate\r
+actually adds tags. I noticed this when I started optimizing and no\r
+tests failed.\r
+\r
+I also had to modify the next test. Perhaps a seperate patch could\r
+make these tests more independent of the previous ones.\r
+---\r
+ test/dump-restore |   14 ++++++++------\r
+ 1 file changed, 8 insertions(+), 6 deletions(-)\r
+\r
+diff --git a/test/dump-restore b/test/dump-restore\r
+index f25f7cf..ca7a730 100755\r
+--- a/test/dump-restore\r
++++ b/test/dump-restore\r
+@@ -29,18 +29,20 @@ test_expect_success 'Accumulate original tags' \\r
+   notmuch dump > dump.actual &&\r
+   test_cmp dump-ABC_DEF.expected dump.actual'\r
+ \r
+-test_expect_success 'Restoring original tags' \\r
+-  'notmuch restore --input=dump.expected &&\r
+-  notmuch dump > dump.actual &&\r
+-  test_cmp dump.expected dump.actual'\r
+-\r
+ test_expect_success 'Restore with nothing to do' \\r
+   'notmuch restore < dump.expected &&\r
+   notmuch dump > dump.actual &&\r
+   test_cmp dump.expected dump.actual'\r
+ \r
++test_expect_success 'Accumulate with changes' \\r
++  'notmuch restore --input=dump.expected &&\r
++   notmuch restore --accumulate --input=dump-ABC_DEF.expected &&\r
++  notmuch dump >  OUTPUT.$test_count &&\r
++  test_cmp dump-ABC_DEF.expected OUTPUT.$test_count'\r
++\r
+ test_expect_success 'Restore with nothing to do, II' \\r
+-  'notmuch restore --accumulate --input=dump.expected &&\r
++  'notmuch restore --input=dump.expected &&\r
++  notmuch restore --accumulate --input=dump.expected &&\r
+   notmuch dump > dump.actual &&\r
+   test_cmp dump.expected dump.actual'\r
+ \r
+-- \r
+1.7.10.4\r
+\r