From: Gerhard Sittig <redacted>
Date: Sun, 19 Mar 2023 19:17:21 +0000 (+0100)
Subject: tests: cover length checking incrementing endianess readers
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=0c7c6a1d7e2ad201a540fae1abb3843f26fea1e7;p=libsigrok.git

tests: cover length checking incrementing endianess readers
---

diff --git a/tests/conv.c b/tests/conv.c
index 551365e2..788c3672 100644
--- a/tests/conv.c
+++ b/tests/conv.c
@@ -114,6 +114,36 @@ START_TEST(test_endian_read)
 }
 END_TEST
 
+START_TEST(test_endian_read_inc_len)
+{
+	const uint8_t *p;
+	size_t l;
+
+	/* Position to the start of the input stream. */
+	p = &buff1234[0];
+	l = sizeof(buff1234);
+
+	/* Read several fields of known type and values. */
+	fail_unless(l == 8);
+	fail_unless(read_u8_inc_len(&p, &l) == 0x11);
+	fail_unless(l == 7);
+	fail_unless(read_u8_inc_len(&p, &l) == 0x22);
+	fail_unless(l == 6);
+	fail_unless(read_u16le_inc_len(&p, &l) == 0x4433);
+	fail_unless(l == 4);
+	fail_unless(read_u16le_inc_len(&p, &l) == 0x6655);
+	fail_unless(l == 2);
+	fail_unless(read_u16le_inc_len(&p, &l) == 0x8877);
+	fail_unless(l == 0);
+
+	/* Read beyond the end of the input stream. */
+	fail_unless(read_u8_inc_len(&p, &l) == 0x0);
+	fail_unless(l == 0);
+	fail_unless(read_u16le_inc_len(&p, &l) == 0x0);
+	fail_unless(l == 0);
+}
+END_TEST
+
 START_TEST(test_endian_read_inc)
 {
 	const uint8_t *p;
@@ -249,6 +279,7 @@ Suite *suite_conv(void)
 	tcase_add_test(tc, test_endian_macro);
 	tcase_add_test(tc, test_endian_read);
 	tcase_add_test(tc, test_endian_read_inc);
+	tcase_add_test(tc, test_endian_read_inc_len);
 	tcase_add_test(tc, test_endian_write);
 	tcase_add_test(tc, test_endian_write_inc);
 	suite_add_tcase(s, tc);