1 files changed, 32 insertions, 0 deletions
diff --git a/test/T320-emacs-large-search-buffer.sh b/test/T320-emacs-large-search-buffer.sh
new file mode 100755
index 00000000..8b1251fe
--- /dev/null
+++ b/test/T320-emacs-large-search-buffer.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+test_description="Emacs with large search results buffer"
+. ./test-lib.sh
+
+x=xxxxxxxxxx # 10
+x=$x$x$x$x$x$x$x$x$x$x # 100
+x=$x$x$x$x$x$x$x$x$x # 900
+
+# We generate a long subject here (over 900 bytes) so that the emacs
+# search results get large quickly. With 30 such messages we should
+# cross several 4kB page boundaries and see the bug.
+n=30
+for i in $(seq 1 $n); do
+  # Roughly 100B2 KiB per message.  That is, we need two messages in order to
+  # exceed the typical size of the pipe buffer (4 KiB on commodity systems).
+  generate_message '[subject]="$x $i of $n"'
+done
+
+notmuch new > /dev/null
+
+test_begin_subtest "Ensure that emacs doesn't drop results"
+notmuch search '*' > EXPECTED
+sed -i -e 's/^thread:[0-9a-f]*  //' -e 's/;//' -e 's/xx*/[BLOB]/' EXPECTED
+echo 'End of search results.' >> EXPECTED
+
+test_emacs '(notmuch-search "*")
+	    (notmuch-test-wait)
+	    (test-output)'
+sed -i -e s',  *, ,g' -e 's/xxx*/[BLOB]/g' OUTPUT
+test_expect_equal_file OUTPUT EXPECTED
+
+test_done