1 files changed, 20 insertions, 0 deletions
diff --git a/test/test_framework.c b/test/test_framework.c
index 8cd53ac..d566944 100644
--- a/test/test_framework.c
+++ b/test/test_framework.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdatomic.h>
+#include <stdint.h>
 #include "test_framework.h"
 
 
@@ -12,3 +13,22 @@ void test_report_error(
 			fname, lineno, type, condition);
 	atomic_flag_test_and_set(&test_framework_assertion_failed);
 }
+
+void print_buffer(FILE *stream, const void *buffer_, size_t length) {
+	const uint8_t *buffer = (const uint8_t*)buffer_;
+	fputc('"', stream);
+
+	for (size_t i = 0; i < length; i++) {
+		const uint8_t b = buffer[i];
+		if (b == '"') fprintf(stream, "\\\"");
+		else if (b == '\\') fprintf(stream, "\\\\");
+		else if (32 <= b && b < 127) fputc(b, stream);
+		else {
+			fprintf(stream, "\\x%c%c",
+					"0123456789abcdef"[b >> 4],
+					"0123456789abcdef"[b & 0xf]);
+		}
+	}
+
+	fprintf(stream, "\"[%zu]", length);
+}