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