public void CanSetContents()
{
FileSystem fs = new FileSystem();
Assert.IsNotNull(fs);
EditableFile f = fs.createFile("test.txt");
Assert.AreEqual(f.getContents(), "");
f.setContents("hello world");
Assert.AreEqual(f.getContents(), "hello world");
}
public void CanNonadminUsersModifyRightPermissions()
{
FileSystem fs = new FileSystem();
EditableFile fi = fs.createFile("hello.txt");
fs.setPermissions(fi, 000);
// Make a nonadmin user
fs.addUser("meow", "pass", SECURITY_LEVEL.NONADMIN);
Assert.AreEqual(2, fs.allUsers.Count);
fs.changeUser("meow", "pass");
// Can't read
Assert.Throws(typeof(InvalidUserException), delegate {
fi.getContents();
});
// Can't write
Assert.Throws(typeof(InvalidUserException), delegate {
fi.setContents("hello world!");
});
// Can't set root permissions
Assert.Throws(typeof(InvalidUserException), delegate {
fs.setPermissions(fi, 700);
});
// Can't set admin permissions
Assert.Throws(typeof(InvalidUserException), delegate {
fs.setPermissions(fi, 070);
});
// Can set nonadmin permissions
fs.setPermissions(fi, 007);
fi.setContents("meowmeow");
Assert.AreEqual("meowmeow", fi.getContents());
}
public void CanRootUsersModifyRightPermissions()
{
FileSystem fs = new FileSystem();
// We are root user, so we can change all permissions.
// Try making something we can't read or write to.
EditableFile fi = fs.createFile("hello.txt");
fs.setPermissions(fi, 000);
Assert.AreEqual(000, fi.getPermissions());
// Can't read
Assert.Throws(typeof(InvalidUserException), delegate {
fi.getContents();
});
// Can't write
Assert.Throws(typeof(InvalidUserException), delegate {
fi.setContents("hello world!");
});
// Can set any permissions
fs.setPermissions(fi, 700);
Assert.AreEqual(700, fi.getPermissions());
fs.setPermissions(fi, 770);
Assert.AreEqual(770, fi.getPermissions());
fs.setPermissions(fi, 777);
Assert.AreEqual(777, fi.getPermissions());
fs.setPermissions(fi, 700);
Assert.AreEqual(700, fi.getPermissions());
// Can read + write now
Assert.AreEqual("", fi.getContents());
fi.setContents("hello!");
Assert.AreEqual("hello!", fi.getContents());
}