test: Add a test for command repeat

This performs a command, then repeats it, and checks that the repeat
happens.

Signed-off-by: Simon Glass <sjg@chromium.org>

test/cmd_repeat.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# Test for U-Boot cli including command repeat
+
+BASE="$(dirname $0)"
+. $BASE/common.sh
+
+run_test() {
+	./${OUTPUT_DIR}/u-boot <<END
+setenv ctrlc_ignore y
+md 0
+
+reset
+END
+}
+check_results() {
+	echo "Check results"
+
+	grep -q 00000100 ${tmp} || fail "Command did not repeat"
+}
+
+echo "Test CLI repeat"
+echo
+tmp="$(tempfile)"
+build_uboot
+run_test >${tmp}
+check_results ${tmp}
+rm ${tmp}
+echo "Test passed"