Added a test

tests/queries/0_stateless/01300_client_save_history_when_terminated.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/expect -f
+
+log_user 0
+set timeout 60
+match_max 100000
+
+spawn clickhouse-client
+expect ":) "
+
+# Make a query
+send -- "SELECT 'for the history'\r"
+expect "for the history"
+expect ":) "
+
+# Kill the client to check if the history was saved
+exec kill -9 [exp_pid]
+close
+
+# Run client one more time and press "up" to see the last recorded query
+spawn clickhouse-client
+expect ":) "
+send -- "\[A"
+expect "SELECT 'for the history'"
+
+# Will check that Ctrl+C clears current line.
+send -- "\3"
+expect ":)"
+
+# Will check that second Ctrl+C invocation does not exit from client.
+send -- "\3"
+expect ":)"
+
+# But Ctrl+D does.
+send -- "\4"
+expect eof