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https://github.com/jart/cosmopolitan.git
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53 lines
2.7 KiB
C
53 lines
2.7 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/dce.h"
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#include "libc/errno.h"
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#include "libc/stdio/stdio.h"
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#include "libc/testlib/testlib.h"
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char testlib_enable_tmp_setup_teardown;
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TEST(fwrite, test) {
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FILE *f;
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char buf[512];
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ASSERT_NE(NULL, (f = fopen("hog", "wb")));
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EXPECT_EQ(-1, fgetc(f));
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EXPECT_EQ(5, fwrite("hello", 1, 5, f));
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EXPECT_EQ(5, ftell(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(-1, fwrite("hello", 1, 5, f));
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EXPECT_EQ(EBADF, ferror(f));
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EXPECT_NE(-1, fclose(f));
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ASSERT_NE(NULL, (f = fopen("hog", "a+b")));
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EXPECT_EQ(5, fwrite("hello", 1, 5, f));
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EXPECT_NE(-1, fclose(f));
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/* TODO(jart): O_APPEND on Windows */
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if (!IsWindows()) {
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ASSERT_NE(NULL, (f = fopen("hog", "r")));
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EXPECT_EQ(10, fread(buf, 1, 10, f));
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EXPECT_TRUE(!memcmp(buf, "hellohello", 10));
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EXPECT_NE(-1, fclose(f));
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}
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}
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