cosmopolitan/test/libc/stdio/ftell_test.c
Justine Tunney 63a1636e1f
Get GNU GMP test suite fully passing
- Fix stdio fmemopen() buffer behaviors
- Fix scanf() to return EOF when appropriate
- Prefer fseek/ftell names over fseeko/ftello
- Ensure locale field is always set in the TIB
- Fix recent regression in vfprintf() return count
- Make %n directive in scanf() have standard behavior
2023-08-21 10:16:42 -07:00

177 lines
6.3 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/mem/gc.internal.h"
#include "libc/mem/mem.h"
#include "libc/stdio/stdio.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
FILE *f;
char buf[512];
char testlib_enable_tmp_setup_teardown;
TEST(ftell, test) {
ASSERT_NE(NULL, (f = fopen("hog", "w")));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(5, fputs("hello", f));
EXPECT_EQ(5, ftell(f));
EXPECT_NE(-1, fclose(f));
ASSERT_NE(NULL, (f = fopen("hog", "r")));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(1, fread(buf, 1, 1, f));
EXPECT_EQ(1, ftell(f));
EXPECT_EQ('h', buf[0]);
EXPECT_EQ(2, fread(buf, 1, 2, f));
EXPECT_EQ(3, ftell(f));
EXPECT_EQ('e', buf[0]);
EXPECT_EQ('l', buf[1]);
EXPECT_FALSE(feof(f));
EXPECT_EQ(2, fread(buf, 1, 512, f));
EXPECT_EQ(5, ftell(f));
EXPECT_TRUE(feof(f));
EXPECT_EQ('l', buf[0]);
EXPECT_EQ('o', buf[1]);
EXPECT_NE(-1, fclose(f));
}
TEST(ftell, testSmallBuffer) {
ASSERT_NE(NULL, (f = fopen("hog", "w")));
EXPECT_NE(-1, setvbuf(f, gc(xmalloc(1)), _IOFBF, 1));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(5, fputs("hello", f));
EXPECT_EQ(5, ftell(f));
EXPECT_NE(-1, fclose(f));
ASSERT_NE(NULL, (f = fopen("hog", "r")));
EXPECT_NE(-1, setvbuf(f, gc(xmalloc(1)), _IOFBF, 1));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(1, fread(buf, 1, 1, f));
EXPECT_EQ(1, ftell(f));
EXPECT_EQ('h', buf[0]);
EXPECT_EQ(2, fread(buf, 1, 2, f));
EXPECT_FALSE(feof(f));
EXPECT_EQ(3, ftell(f));
EXPECT_EQ('e', buf[0]);
EXPECT_EQ('l', buf[1]);
EXPECT_FALSE(feof(f));
EXPECT_EQ(2, fread(buf, 1, 512, f));
EXPECT_EQ(5, ftell(f));
EXPECT_TRUE(feof(f));
EXPECT_EQ('l', buf[0]);
EXPECT_EQ('o', buf[1]);
EXPECT_NE(-1, fclose(f));
}
TEST(ftell, testNoBuffer) {
ASSERT_NE(NULL, (f = fopen("hog", "w")));
EXPECT_NE(-1, setvbuf(f, gc(xmalloc(0)), _IONBF, 0));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(5, fputs("hello", f));
EXPECT_EQ(5, ftell(f));
EXPECT_NE(-1, fclose(f));
ASSERT_NE(NULL, (f = fopen("hog", "r")));
EXPECT_NE(-1, setvbuf(f, gc(xmalloc(0)), _IONBF, 0));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(1, fread(buf, 1, 1, f));
EXPECT_EQ(1, ftell(f));
EXPECT_EQ('h', buf[0]);
EXPECT_EQ(2, fread(buf, 1, 2, f));
EXPECT_FALSE(feof(f));
EXPECT_EQ(3, ftell(f));
EXPECT_EQ('e', buf[0]);
EXPECT_EQ('l', buf[1]);
EXPECT_FALSE(feof(f));
EXPECT_EQ(2, fread(buf, 1, 512, f));
EXPECT_EQ(5, ftell(f));
EXPECT_TRUE(feof(f));
EXPECT_EQ('l', buf[0]);
EXPECT_EQ('o', buf[1]);
EXPECT_NE(-1, fclose(f));
}
TEST(fseek, test) {
ASSERT_NE(NULL, (f = fopen("hog", "w")));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(5, fputs("hello", f));
EXPECT_EQ(5, ftell(f));
EXPECT_EQ(0, fseek(f, -3, SEEK_CUR));
EXPECT_EQ(2, ftell(f));
EXPECT_EQ(1, fputs("L", f));
EXPECT_EQ(3, ftell(f));
EXPECT_EQ(0, fseek(f, -1, SEEK_END));
EXPECT_EQ(4, ftell(f));
EXPECT_EQ(1, fputs("O", f));
EXPECT_EQ(5, ftell(f));
EXPECT_EQ(0, fseek(f, 0, SEEK_SET));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(1, fputs("H", f));
EXPECT_EQ(1, ftell(f));
EXPECT_NE(-1, fclose(f));
ASSERT_NE(NULL, (f = fopen("hog", "r")));
EXPECT_EQ(5, fread(buf, 1, 512, f));
EXPECT_BINEQ(u"HeLlO", buf);
EXPECT_NE(-1, fclose(f));
}
TEST(fseek, testMemory) {
ASSERT_NE(NULL, (f = fmemopen(gc(strdup("hello")), 5, "r+")));
EXPECT_EQ(0, fseek(f, 0, SEEK_END));
EXPECT_EQ(5, ftell(f));
EXPECT_EQ(0, fseek(f, -3, SEEK_CUR));
EXPECT_EQ(2, ftell(f));
EXPECT_EQ(1, fputs("L", f));
EXPECT_EQ(3, ftell(f));
EXPECT_EQ(0, fseek(f, -1, SEEK_END));
EXPECT_EQ(4, ftell(f));
EXPECT_EQ(1, fputs("O", f));
EXPECT_EQ(5, ftell(f));
EXPECT_EQ(0, fseek(f, 0, SEEK_SET));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(1, fputs("H", f));
EXPECT_EQ(1, ftell(f));
rewind(f);
EXPECT_EQ(5, fread(buf, 1, 512, f));
EXPECT_BINEQ(u"HeLlO", buf);
EXPECT_NE(-1, fclose(f));
}
TEST(fseek, testSmallBuffer) {
ASSERT_NE(NULL, (f = fopen("hog", "w")));
EXPECT_NE(-1, setvbuf(f, gc(xmalloc(1)), _IOFBF, 1));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(5, fputs("hello", f));
EXPECT_EQ(5, ftell(f));
EXPECT_EQ(0, fseek(f, -3, SEEK_CUR));
EXPECT_EQ(2, ftell(f));
EXPECT_EQ(1, fputs("L", f));
EXPECT_EQ(3, ftell(f));
EXPECT_EQ(0, fseek(f, -1, SEEK_END));
EXPECT_EQ(4, ftell(f));
EXPECT_EQ(1, fputs("O", f));
EXPECT_EQ(5, ftell(f));
EXPECT_EQ(0, fseek(f, 0, SEEK_SET));
EXPECT_EQ(0, ftell(f));
EXPECT_EQ(1, fputs("H", f));
EXPECT_EQ(1, ftell(f));
EXPECT_NE(-1, fclose(f));
ASSERT_NE(NULL, (f = fopen("hog", "r")));
EXPECT_EQ(5, fread(buf, 1, 512, f));
EXPECT_BINEQ(u"HeLlO", buf);
EXPECT_NE(-1, fclose(f));
}