test: Add a way to check each line of console output

When writing tests to check the output from commands it is useful to be
able to check the output line by line using an assertion. Add helper
macros to support this and to check that there is no unexpected trailing
data.

Also some commands produce a dump using print_buffer(). Add a way to check
that the correct number of bytes are dumped (ignoring the actual
contents).

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

1 files changed, 46 insertions, 0 deletions

diff --git a/test/ut.c b/test/ut.c
index 265da4a0d8..c64f0b554d 100644
--- a/test/ut.c
+++ b/test/ut.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <console.h>
 #include <malloc.h>
 #include <test/test.h>
 #include <test/ut.h>
@@ -46,3 +47,48 @@ long ut_check_delta(ulong last)
 	return ut_check_free() - last;
 }
 
+int ut_check_console_line(struct unit_test_state *uts, const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+	vsnprintf(uts->expect_str, sizeof(uts->expect_str), fmt, args);
+	va_end(args);
+	console_record_readline(uts->actual_str, sizeof(uts->actual_str));
+
+	return strcmp(uts->expect_str, uts->actual_str);
+}
+
+int ut_check_console_end(struct unit_test_state *uts)
+{
+	if (!console_record_avail())
+		return 0;
+
+	console_record_readline(uts->actual_str, sizeof(uts->actual_str));
+
+	return 1;
+}
+
+int ut_check_console_dump(struct unit_test_state *uts, int total_bytes)
+{
+	char *str = uts->actual_str;
+	int upto;
+
+	/* Handle empty dump */
+	if (!total_bytes)
+		return 0;
+
+	for (upto = 0; upto < total_bytes;) {
+		int len;
+		int bytes;
+
+		len = console_record_readline(str, sizeof(uts->actual_str));
+		if (str[8] != ':' || str[9] != ' ')
+			return 1;
+
+		bytes = len - 8 - 2 - 3 * 16 - 4;
+		upto += bytes;
+	}
+
+	return upto == total_bytes ? 0 : 1;
+}