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75 lines
2 KiB
C++
75 lines
2 KiB
C++
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/*
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibCore/System.h>
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#include <LibTest/TestCase.h>
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TEST_CASE(posix_fallocate_basics)
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{
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char pattern[] = "/tmp/posix_fallocate.XXXXXX";
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auto fd = MUST(Core::System::mkstemp(pattern));
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VERIFY(fd >= 0);
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{
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// Valid use, grows file to new size.
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auto result = Core::System::posix_fallocate(fd, 0, 1024);
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EXPECT_EQ(result.is_error(), false);
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auto stat = MUST(Core::System::fstat(fd));
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EXPECT_EQ(stat.st_size, 1024);
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}
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{
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// Invalid fd (-1)
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auto result = Core::System::posix_fallocate(-1, 0, 1024);
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EXPECT_EQ(result.is_error(), true);
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EXPECT_EQ(result.error().code(), EBADF);
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}
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{
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// Invalid length (-1)
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auto result = Core::System::posix_fallocate(fd, 0, -1);
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EXPECT_EQ(result.is_error(), true);
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EXPECT_EQ(result.error().code(), EINVAL);
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}
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{
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// Invalid length (0)
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auto result = Core::System::posix_fallocate(fd, 0, 0);
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EXPECT_EQ(result.is_error(), true);
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EXPECT_EQ(result.error().code(), EINVAL);
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}
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{
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// Invalid offset (-1)
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auto result = Core::System::posix_fallocate(fd, -1, 1024);
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EXPECT_EQ(result.is_error(), true);
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EXPECT_EQ(result.error().code(), EINVAL);
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}
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MUST(Core::System::close(fd));
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}
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TEST_CASE(posix_fallocate_on_device_file)
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{
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auto fd = MUST(Core::System::open("/dev/zero"sv, O_RDWR));
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VERIFY(fd >= 0);
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auto result = Core::System::posix_fallocate(fd, 0, 100);
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EXPECT_EQ(result.is_error(), true);
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EXPECT_EQ(result.error().code(), ENODEV);
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MUST(Core::System::close(fd));
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}
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TEST_CASE(posix_fallocate_on_pipe)
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{
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auto pipefds = MUST(Core::System::pipe2(0));
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auto result = Core::System::posix_fallocate(pipefds[1], 0, 100);
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EXPECT_EQ(result.is_error(), true);
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EXPECT_EQ(result.error().code(), ESPIPE);
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MUST(Core::System::close(pipefds[0]));
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MUST(Core::System::close(pipefds[1]));
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}
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