diff options
Diffstat (limited to 'test/lib/sscanf.c')
| -rw-r--r-- | test/lib/sscanf.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/test/lib/sscanf.c b/test/lib/sscanf.c new file mode 100644 index 00000000000..772e4b92042 --- /dev/null +++ b/test/lib/sscanf.c @@ -0,0 +1,174 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2002, Uwe Bonnes + * Copyright (c) 2001-2004, Roger Dingledine. + * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. + * Copyright (c) 2007-2016, The Tor Project, Inc. + * Copyright (c) 2020, EPAM Systems Inc. + * + * Unit tests for sscanf() function + */ + +#include <common.h> +#include <command.h> +#include <log.h> +#include <test/lib.h> +#include <test/test.h> +#include <test/ut.h> + +#define EOF -1 + +/** + * lib_sscanf() - unit test for sscanf() + * @uts: unit test state + * + * Test sscanf() with varied parameters in different combinations passed + * as arguments. + * + * Return: 0 - success + * 1 - failure + */ +static int lib_sscanf(struct unit_test_state *uts) +{ + char buffer[100], buffer1[100]; + int result, ret; + static const char pname[] = " Hello World!\n"; + int hour = 21, min = 59, sec = 20; + int number, number_so_far; + unsigned int u1, u2, u3; + char s1[20], s2[10], s3[10], ch; + int r, int1, int2; + long lng1; + + /* check EOF */ + strcpy(buffer, ""); + ret = sscanf(buffer, "%d", &result); + ut_asserteq(ret, EOF); + + /* check %x */ + strcpy(buffer, "0x519"); + ut_asserteq(sscanf(buffer, "%x", &result), 1); + ut_asserteq(result, 0x519); + + strcpy(buffer, "0x51a"); + ut_asserteq(sscanf(buffer, "%x", &result), 1); + ut_asserteq(result, 0x51a); + + strcpy(buffer, "0x51g"); + ut_asserteq(sscanf(buffer, "%x", &result), 1); + ut_asserteq(result, 0x51); + + /* check strings */ + ret = sprintf(buffer, " %s", pname); + ret = sscanf(buffer, "%*c%[^\n]", buffer1); + ut_asserteq(ret, 1); + ut_asserteq(strncmp(pname, buffer1, strlen(buffer1)), 0); + + /* check digits */ + ret = sprintf(buffer, "%d:%d:%d", hour, min, sec); + ret = sscanf(buffer, "%d%n", &number, &number_so_far); + ut_asserteq(ret, 1); + ut_asserteq(number, hour); + ut_asserteq(number_so_far, 2); + + ret = sscanf(buffer + 2, "%*c%n", &number_so_far); + ut_asserteq(ret, 0); + ut_asserteq(number_so_far, 1); + + /* Check %i */ + strcpy(buffer, "123"); + ret = sscanf(buffer, "%i", &result); + ut_asserteq(ret, 1); + ut_asserteq(result, 123); + ret = sscanf(buffer, "%d", &result); + ut_asserteq(ret, 1); + ut_asserteq(result, 123); + + ut_asserteq(0, sscanf("hello world", "hello world")); + ut_asserteq(0, sscanf("hello world", "good bye")); + /* Excess data */ + ut_asserteq(0, sscanf("hello 3", "%u", &u1)); /* have to match the start */ + ut_asserteq(1, sscanf("3 hello", "%u", &u1)); /* but trailing is alright */ + + /* Numbers (ie. %u) */ + ut_asserteq(0, sscanf("hello world 3", "hello worlb %u", &u1)); /* d vs b */ + ut_asserteq(1, sscanf("12345", "%u", &u1)); + ut_asserteq(12345u, u1); + ut_asserteq(1, sscanf("0", "%u", &u1)); + ut_asserteq(0u, u1); + ut_asserteq(1, sscanf("0000", "%u", &u2)); + ut_asserteq(0u, u2); + ut_asserteq(0, sscanf("A", "%u", &u1)); /* bogus number */ + + /* Numbers with size (eg. %2u) */ + ut_asserteq(2, sscanf("123456", "%2u%u", &u1, &u2)); + ut_asserteq(12u, u1); + ut_asserteq(3456u, u2); + ut_asserteq(1, sscanf("123456", "%8u", &u1)); + ut_asserteq(123456u, u1); + ut_asserteq(1, sscanf("123457 ", "%8u", &u1)); + ut_asserteq(123457u, u1); + ut_asserteq(3, sscanf("!12:3:456", "!%2u:%2u:%3u", &u1, &u2, &u3)); + ut_asserteq(12u, u1); + ut_asserteq(3u, u2); + ut_asserteq(456u, u3); + ut_asserteq(3, sscanf("67:8:099", "%2u:%2u:%3u", &u1, &u2, &u3)); /* 0s */ + ut_asserteq(67u, u1); + ut_asserteq(8u, u2); + ut_asserteq(99u, u3); + /* Arbitrary amounts of 0-padding are okay */ + ut_asserteq(3, sscanf("12:03:000000000000000099", "%2u:%2u:%u", &u1, &u2, &u3)); + ut_asserteq(12u, u1); + ut_asserteq(3u, u2); + ut_asserteq(99u, u3); + + /* Hex (ie. %x) */ + ut_asserteq(3, sscanf("1234 02aBcdEf ff", "%x %x %x", &u1, &u2, &u3)); + ut_asserteq(0x1234, u1); + ut_asserteq(0x2ABCDEF, u2); + ut_asserteq(0xFF, u3); + /* Width works on %x */ + ut_asserteq(3, sscanf("f00dcafe444", "%4x%4x%u", &u1, &u2, &u3)); + ut_asserteq(0xf00d, u1); + ut_asserteq(0xcafe, u2); + ut_asserteq(444, u3); + + /* Literal '%' (ie. '%%') */ + ut_asserteq(1, sscanf("99% fresh", "%3u%% fresh", &u1)); + ut_asserteq(99, u1); + ut_asserteq(0, sscanf("99 fresh", "%% %3u %s", &u1, s1)); + ut_asserteq(1, sscanf("99 fresh", "%3u%% %s", &u1, s1)); + ut_asserteq(2, sscanf("99 fresh", "%3u %5s %%", &u1, s1)); + ut_asserteq(99, u1); + ut_asserteq_str(s1, "fresh"); + ut_asserteq(1, sscanf("% boo", "%% %3s", s1)); + ut_asserteq_str("boo", s1); + + /* Strings (ie. %s) */ + ut_asserteq(2, sscanf("hello", "%3s%7s", s1, s2)); + ut_asserteq_str(s1, "hel"); + ut_asserteq_str(s2, "lo"); + ut_asserteq(2, sscanf("WD40", "%2s%u", s3, &u1)); /* %s%u */ + ut_asserteq_str(s3, "WD"); + ut_asserteq(40, u1); + ut_asserteq(2, sscanf("WD40", "%3s%u", s3, &u1)); /* %s%u */ + ut_asserteq_str(s3, "WD4"); + ut_asserteq(0, u1); + ut_asserteq(2, sscanf("76trombones", "%6u%9s", &u1, s1)); /* %u%s */ + ut_asserteq(76, u1); + ut_asserteq_str(s1, "trombones"); + + ut_asserteq(3, sscanf("1.2.3", "%u.%u.%u%c", &u1, &u2, &u3, &ch)); + ut_asserteq(4, sscanf("1.2.3 foobar", "%u.%u.%u%c", &u1, &u2, &u3, &ch)); + ut_asserteq(' ', ch); + + r = sscanf("12345 -67890 -1", "%d %ld %d", &int1, &lng1, &int2); + ut_asserteq(r, 3); + ut_asserteq(int1, 12345); + ut_asserteq(lng1, -67890); + ut_asserteq(int2, -1); + + return 0; +} + +LIB_TEST(lib_sscanf, 0); |