ladybird/Tests/LibC/TestLibCInodeWatcher.cpp
Ali Mohammad Pur 5e1499d104 Everywhere: Rename {Deprecated => Byte}String
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).

This commit is auto-generated:
  $ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
    Meta Ports Ladybird Tests Kernel)
  $ perl -pie 's/\bDeprecatedString\b/ByteString/g;
    s/deprecated_string/byte_string/g' $xs
  $ clang-format --style=file -i \
    $(git diff --name-only | grep \.cpp\|\.h)
  $ gn format $(git ls-files '*.gn' '*.gni')
2023-12-17 18:25:10 +03:30

170 lines
4.2 KiB
C++

/*
* Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/NumericLimits.h>
#include <Kernel/API/InodeWatcherEvent.h>
#include <Kernel/API/InodeWatcherFlags.h>
#include <LibTest/TestCase.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <utime.h>
u8 buffer[MAXIMUM_EVENT_SIZE];
InodeWatcherEvent* event = reinterpret_cast<InodeWatcherEvent*>(buffer);
static int read_event(int fd)
{
int rc = read(fd, &buffer, MAXIMUM_EVENT_SIZE);
return rc;
}
static ByteString get_event_name()
{
if (event->name_length == 0)
return ByteString();
return ByteString { event->name, event->name_length - 1 };
}
TEST_CASE(inode_watcher_metadata_modified_event)
{
int fd = create_inode_watcher(0);
EXPECT_NE(fd, -1);
int test_fd = creat("/tmp/testfile", 0777);
EXPECT_NE(test_fd, -1);
int wd = inode_watcher_add_watch(fd, "/tmp/testfile", 13, static_cast<unsigned>(InodeWatcherEvent::Type::MetadataModified));
EXPECT_NE(wd, -1);
// "touch" the file
int rc = utime("/tmp/testfile", nullptr);
EXPECT_NE(rc, -1);
rc = read_event(fd);
EXPECT_EQ(event->watch_descriptor, wd);
EXPECT_EQ(event->type, InodeWatcherEvent::Type::MetadataModified);
close(fd);
close(test_fd);
unlink("/tmp/testfile");
}
TEST_CASE(inode_watcher_content_modified_event)
{
int fd = create_inode_watcher(0);
EXPECT_NE(fd, -1);
int test_fd = creat("/tmp/testfile", 0777);
EXPECT_NE(test_fd, -1);
int wd = inode_watcher_add_watch(fd, "/tmp/testfile", 13, static_cast<unsigned>(InodeWatcherEvent::Type::ContentModified));
EXPECT_NE(wd, -1);
int rc = write(test_fd, "test", 4);
EXPECT_NE(rc, -1);
rc = read_event(fd);
EXPECT_NE(rc, -1);
EXPECT_EQ(event->watch_descriptor, wd);
EXPECT_EQ(event->type, InodeWatcherEvent::Type::ContentModified);
close(fd);
close(test_fd);
unlink("/tmp/testfile");
}
TEST_CASE(inode_watcher_deleted_event)
{
int fd = create_inode_watcher(0);
EXPECT_NE(fd, -1);
int test_fd = creat("/tmp/testfile", 0777);
EXPECT_NE(test_fd, -1);
int wd = inode_watcher_add_watch(fd, "/tmp/testfile", 13, static_cast<unsigned>(InodeWatcherEvent::Type::Deleted));
EXPECT_NE(wd, -1);
int rc = unlink("/tmp/testfile");
EXPECT_NE(rc, -1);
rc = read_event(fd);
EXPECT_NE(rc, -1);
EXPECT_EQ(event->watch_descriptor, wd);
EXPECT_EQ(event->type, InodeWatcherEvent::Type::Deleted);
close(fd);
close(test_fd);
}
TEST_CASE(inode_watcher_child_events)
{
int fd = create_inode_watcher(0);
EXPECT_NE(fd, -1);
int wd = inode_watcher_add_watch(fd, "/tmp/", 5, static_cast<unsigned>(InodeWatcherEvent::Type::ChildCreated | InodeWatcherEvent::Type::ChildDeleted));
EXPECT_NE(fd, -1);
int rc = creat("/tmp/testfile", 0777);
EXPECT_NE(rc, -1);
rc = read_event(fd);
EXPECT_NE(rc, -1);
EXPECT_EQ(event->watch_descriptor, wd);
EXPECT_EQ(event->type, InodeWatcherEvent::Type::ChildCreated);
VERIFY(event->name_length > 0);
EXPECT_EQ(get_event_name(), "testfile");
rc = unlink("/tmp/testfile");
EXPECT_NE(rc, -1);
rc = read_event(fd);
EXPECT_NE(rc, -1);
EXPECT_EQ(event->watch_descriptor, wd);
EXPECT_EQ(event->type, InodeWatcherEvent::Type::ChildDeleted);
VERIFY(event->name_length > 0);
EXPECT_EQ(get_event_name(), "testfile");
close(fd);
}
TEST_CASE(inode_watcher_closes_children_on_close)
{
int fd = create_inode_watcher(0);
EXPECT_NE(fd, -1);
int test_fd = creat("/tmp/testfile", 0777);
EXPECT_NE(test_fd, -1);
int wd = inode_watcher_add_watch(fd, "/tmp/testfile", 13, static_cast<unsigned>(InodeWatcherEvent::Type::MetadataModified));
EXPECT_NE(wd, -1);
int rc = utime("/tmp/testfile", nullptr);
EXPECT_NE(rc, -1);
close(fd);
rc = read_event(fd);
EXPECT_EQ(rc, -1);
EXPECT_EQ(errno, EBADF);
close(test_fd);
unlink("/tmp/testfile");
}
TEST_CASE(inode_watcher_nonblock)
{
int fd = create_inode_watcher(static_cast<unsigned>(InodeWatcherFlags::Nonblock));
EXPECT_NE(fd, -1);
int rc = read_event(fd);
EXPECT_EQ(rc, -1);
EXPECT_EQ(errno, EAGAIN);
close(fd);
}