system_update_committer/metadata/
configuration_without_recovery.rs

1// Copyright 2020 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use fidl_fuchsia_paver as paver;
6
7/// We do not support the Recovery bootslot in verification and commits!
8/// Wrapper type so that it's very clear to humans and compilers.
9#[derive(Debug, Clone, PartialEq)]
10pub enum ConfigurationWithoutRecovery {
11    A,
12    B,
13}
14
15impl From<&ConfigurationWithoutRecovery> for paver::Configuration {
16    fn from(config: &ConfigurationWithoutRecovery) -> Self {
17        match *config {
18            ConfigurationWithoutRecovery::A => Self::A,
19            ConfigurationWithoutRecovery::B => Self::B,
20        }
21    }
22}
23
24impl ConfigurationWithoutRecovery {
25    pub fn to_alternate(&self) -> &Self {
26        match *self {
27            Self::A => &Self::B,
28            Self::B => &Self::A,
29        }
30    }
31}
32
33#[cfg(test)]
34impl TryFrom<&paver::Configuration> for ConfigurationWithoutRecovery {
35    type Error = ();
36    fn try_from(config: &paver::Configuration) -> Result<Self, Self::Error> {
37        match *config {
38            paver::Configuration::A => Ok(Self::A),
39            paver::Configuration::B => Ok(Self::B),
40            _ => Err(()),
41        }
42    }
43}
44
45#[cfg(test)]
46mod tests {
47    use super::*;
48
49    #[test]
50    fn to_alternate() {
51        assert_eq!(
52            ConfigurationWithoutRecovery::A.to_alternate(),
53            &ConfigurationWithoutRecovery::B
54        );
55        assert_eq!(
56            ConfigurationWithoutRecovery::B.to_alternate(),
57            &ConfigurationWithoutRecovery::A
58        );
59    }
60
61    #[test]
62    fn fidl_conversion() {
63        assert_eq!(
64            paver::Configuration::from(&ConfigurationWithoutRecovery::A),
65            paver::Configuration::A
66        );
67        assert_eq!(
68            paver::Configuration::from(&ConfigurationWithoutRecovery::B),
69            paver::Configuration::B
70        );
71    }
72}
system_update_committer/metadata/configuration_without_recovery.rs

system_update_committer/metadata/
configuration_without_recovery.rs
