+# reinitialize database for outline tests
+add_email_corpus
+
+test_begin_subtest "start in outline mode"
+test_emacs '(let ((notmuch-tree-outline-enabled t))
+ (notmuch-tree "tag:inbox")
+ (notmuch-test-wait)
+ (test-visible-output))'
+# folding all messages by height or depth should look the same
+test_expect_equal_file $EXPECTED/inbox-outline OUTPUT
+
+test_begin_subtest "outline-cycle-buffer"
+test_emacs '(let ((notmuch-tree-outline-enabled t))
+ (notmuch-tree "tag:inbox")
+ (notmuch-test-wait)
+ (outline-cycle-buffer)
+ (outline-cycle-buffer)
+ (notmuch-test-wait)
+ (test-visible-output))'
+# folding all messages by height or depth should look the same
+test_expect_equal_file $EXPECTED/notmuch-tree-tag-inbox OUTPUT
+
+test_done
+