test: Add ut_assert_nextline_empty() empty line helper

Add helper macro to test for empty lines, which is an inobvious
wrapper around ut_assert_nextline("%s", "") .

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/include/test/ut.h b/include/test/ut.h
index 4d00b4e..2b0dab3 100644 (file)
--- a/include/test/ut.h
+++ b/include/test/ut.h
@@ -334,6 +334,10 @@ int ut_check_console_dump(struct unit_test_state *uts, int total_bytes);
                return CMD_RET_FAILURE;                                 \
        }                                                               \
 
+/* Assert that the next console output line is empty */
+#define ut_assert_nextline_empty()                                     \
+       ut_assert_nextline("%s", "")
+
 /**
  * ut_check_free() - Return the number of bytes free in the malloc() pool
  *