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示例1: CreateSlaveFlags
// This test verifies the case where we don't need a bind mount for
// slave's working directory because the mount containing it is
// already a shared mount in its own peer group.
TEST_F(LinuxFilesystemIsolatorTest, ROOT_WorkDirMountNotNeeded)
{
Try<string> directory = environment->mkdtemp();
ASSERT_SOME(directory);
// Make 'sandbox' a shared mount in its own peer group.
ASSERT_SOME(os::shell(
"mount --bind %s %s && "
"mount --make-private %s &&"
"mount --make-shared %s",
directory->c_str(),
directory->c_str(),
directory->c_str(),
directory->c_str()));
// Slave's working directory is under 'sandbox'.
slave::Flags flags = CreateSlaveFlags();
flags.work_dir = path::join(directory.get(), "slave");
ASSERT_SOME(os::mkdir(flags.work_dir));
Try<Isolator*> isolator = LinuxFilesystemIsolatorProcess::create(flags);
ASSERT_SOME(isolator);
Try<fs::MountInfoTable> table = fs::MountInfoTable::read();
ASSERT_SOME(table);
// Verifies that there's no mount for slave's working directory.
bool mountFound = false;
foreach (const fs::MountInfoTable::Entry& entry, table->entries) {
if (entry.target == flags.work_dir) {
mountFound = true;
}
}
EXPECT_FALSE(mountFound);
delete isolator.get();
}