144 lines
5.4 KiB
C
144 lines
5.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/bits.h"
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#include "libc/errno.h"
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#include "libc/fmt/fmt.h"
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#include "libc/limits.h"
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#include "libc/mem/mem.h"
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#include "libc/testlib/testlib.h"
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#define sscanf1(STR, FMT) \
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({ \
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errno = 0; \
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intmax_t x = 0; \
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EXPECT_EQ(1, sscanf(STR, FMT, &x)); \
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x; \
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})
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TEST(sscanf, testMultiple) {
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int a, b, c;
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ASSERT_EQ(3, sscanf("123 123 123", "%d %x %o", &a, &b, &c));
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EXPECT_EQ(123, a);
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EXPECT_EQ(0x123, b);
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EXPECT_EQ(0123, c);
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}
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TEST(sscanf, testDecimal) {
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EXPECT_EQ(123, sscanf1("123", "%d"));
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EXPECT_EQ(123, sscanf1("123", "%n"));
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EXPECT_EQ(123, sscanf1("123", "%u"));
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EXPECT_EQ((uint32_t)-123, sscanf1("-123", "%d"));
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}
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TEST(sscanf, testHex) {
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EXPECT_EQ(0x123, sscanf1("123", "%x"));
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EXPECT_EQ(0x123, sscanf1("0x123", "%x"));
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EXPECT_EQ(0x123, sscanf1("0123", "%x"));
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EXPECT_EQ(INTMAX_MAX,
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sscanf1("170141183460469231731687303715884105727", "%jd"));
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EXPECT_EQ(INTMAX_MIN,
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sscanf1("-170141183460469231731687303715884105728", "%jd"));
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EXPECT_EQ(UINTMAX_MAX, sscanf1("0xffffffffffffffffffffffffffffffff", "%jx"));
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}
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TEST(sscanf, testOctal) {
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EXPECT_EQ(0123, sscanf1("123", "%o"));
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EXPECT_EQ(0123, sscanf1("0123", "%o"));
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}
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TEST(sscanf, testNonDirectiveCharacterMatching) {
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EXPECT_EQ(0, sscanf("", ""));
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EXPECT_EQ(0, sscanf("%", "%%"));
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}
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TEST(sscanf, testCharacter) {
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char c = 0;
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EXPECT_EQ(1, sscanf("a", "%c", &c));
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EXPECT_EQ('a', c);
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}
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TEST(sscanf, testStringBuffer) {
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char s1[32], s2[32];
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ASSERT_EQ(2, sscanf("abc xyz", "%s %s", s1, s2));
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EXPECT_STREQ("abc", &s1[0]);
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EXPECT_STREQ("xyz", &s2[0]);
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}
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TEST(sscanf, testStringBuffer_gothicUtf8ToUtf8_roundTrips) {
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char s1[64], s2[64];
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%63s %63s", s1, s2));
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EXPECT_STREQ("𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ("𐌴𐌵𐌶𐌷", s2);
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}
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TEST(sscanf, testStringBuffer_gothicUtf8ToUtf16) {
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char16_t s1[64], s2[64];
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%63hs %63hs", s1, s2));
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EXPECT_STREQ(u"𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ(u"𐌴𐌵𐌶𐌷", s2);
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}
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TEST(sscanf, testStringBuffer_gothicUtf8ToUtf32) {
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wchar_t s1[64], s2[64];
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%63ls %63ls", s1, s2));
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EXPECT_STREQ(L"𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ(L"𐌴𐌵𐌶𐌷", s2);
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}
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TEST(sscanf, testStringBuffer_allocatingBehavior) {
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char *s1, *s2;
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ASSERT_EQ(2, sscanf("𐌰𐌱𐌲𐌳 𐌴𐌵𐌶𐌷", "%ms %ms", &s1, &s2));
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EXPECT_STREQ("𐌰𐌱𐌲𐌳", s1);
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EXPECT_STREQ("𐌴𐌵𐌶𐌷", s2);
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free(s1);
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free(s2);
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}
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TEST(sscanf, testPracticalBusinessApplication) {
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unsigned start, stop;
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char width;
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ASSERT_EQ(1, sscanf("0BF3..", "%x", &start));
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EXPECT_EQ(0x0BF3, start);
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ASSERT_EQ(3, sscanf("0BF3..0BF8;N # So [6] TAMIL DAY SIGN",
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"%x..%x;%c", &start, &stop, &width));
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EXPECT_EQ(0x0BF3, start);
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EXPECT_EQ(0x0BF8, stop);
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EXPECT_EQ('N', width);
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}
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TEST(sscanf, socketListenUri) {
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char proto[4];
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unsigned char ip4[4];
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uint16_t port;
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ASSERT_EQ(6, sscanf("tcp:127.0.0.1:31337", "%3s:%hhu.%hhu.%hhu.%hhu:%hu",
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proto, &ip4[0], &ip4[1], &ip4[2], &ip4[3], &port));
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ASSERT_STREQ("tcp", proto);
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ASSERT_EQ(127, ip4[0]);
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ASSERT_EQ(0, ip4[1]);
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ASSERT_EQ(0, ip4[2]);
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ASSERT_EQ(1, ip4[3]);
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ASSERT_EQ(31337, port);
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}
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TEST(sscanf, testDiscard_notIncludedInCount) {
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char buf[8];
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ASSERT_EQ(1, sscanf("hello there", "%*s %8s", buf));
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EXPECT_STREQ("there", buf);
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}
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