mirror of
https://github.com/jart/cosmopolitan.git
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79 lines
3.4 KiB
C
79 lines
3.4 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 2021 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/calls/calls.h"
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#include "libc/runtime/internal.h"
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#include "libc/stdio/lock.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/testlib.h"
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FILE *f;
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char buf[512];
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char testlib_enable_tmp_setup_teardown;
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TEST(fputc, test) {
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ASSERT_NE(NULL, (f = fopen("hog", "w+")));
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EXPECT_EQ('h', fputc('h', f));
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EXPECT_EQ(0xFF, fputc(-1, f));
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EXPECT_NE(-1, fseek(f, 0, SEEK_SET));
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EXPECT_EQ('h', fgetc(f));
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EXPECT_EQ(0, fread(NULL, 0, 0, f));
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EXPECT_FALSE(feof(f));
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EXPECT_EQ(0xFF, fgetc(f));
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EXPECT_EQ(-1, fgetc(f));
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EXPECT_TRUE(feof(f));
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EXPECT_NE(-1, fclose(f));
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ASSERT_NE(NULL, (f = fopen("hog", "r")));
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EXPECT_EQ(2, fread(buf, 1, 512, f));
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EXPECT_TRUE(!memcmp(buf, "h\377", 2));
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EXPECT_TRUE(feof(f));
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EXPECT_NE(-1, fclose(f));
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}
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TEST(fgetc, testUnbuffered) {
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ASSERT_NE(NULL, (f = fopen("hog", "w+")));
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EXPECT_NE(-1, setvbuf(f, NULL, _IONBF, 0));
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EXPECT_EQ('h', fputc('h', f));
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EXPECT_EQ(0xFF, fputc(-1, f));
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EXPECT_NE(-1, fseek(f, 0, SEEK_SET));
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EXPECT_EQ('h', fgetc(f));
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EXPECT_EQ(0xFF, fgetc(f));
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EXPECT_EQ(-1, fgetc(f));
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EXPECT_TRUE(feof(f));
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EXPECT_NE(-1, fclose(f));
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ASSERT_NE(NULL, (f = fopen("hog", "r")));
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EXPECT_EQ(2, fread(buf, 1, 512, f));
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EXPECT_TRUE(!memcmp(buf, "h\377", 2));
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EXPECT_TRUE(feof(f));
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EXPECT_NE(-1, fclose(f));
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}
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BENCH(fputc, bench) {
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__enable_threads();
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FILE *f;
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ASSERT_NE(NULL, (f = fopen("/dev/null", "w")));
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EZBENCH2("fputc", donothing, fputc('E', f));
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flockfile(f);
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flockfile(f);
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EZBENCH2("fputc_unlocked", donothing, fputc_unlocked('E', f));
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funlockfile(f);
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funlockfile(f);
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fclose(f);
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}
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