blob: d9036d69c8b8d9d63c2d6cc16a07f7e068ff522c [file] [log] [blame]
// Copyright 2020 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//! Typesafe wrappers around verifying the board file.
use {fidl_fuchsia_io::DirectoryProxy, fuchsia_zircon::Status, thiserror::Error};
/// An error encountered while verifying the board.
#[derive(Debug, Error)]
#[allow(missing_docs)]
pub enum VerifyBoardError {
#[error("while opening the file: {0}")]
OpenFile(#[from] io_util::node::OpenError),
#[error("while reading the file: {0}")]
ReadFile(#[from] io_util::file::ReadError),
#[error("expected board name {} found {}", expected, found)]
VerifyContents { expected: String, found: String },
}
pub(crate) async fn verify_board(
proxy: &DirectoryProxy,
expected_contents: &str,
) -> Result<(), VerifyBoardError> {
let file =
match io_util::directory::open_file(proxy, "board", fidl_fuchsia_io::OPEN_RIGHT_READABLE)
.await
{
Ok(file) => Ok(file),
Err(io_util::node::OpenError::OpenError(Status::NOT_FOUND)) => return Ok(()),
Err(e) => Err(e),
}
.map_err(VerifyBoardError::OpenFile)?;
let contents =
io_util::file::read_to_string(&file).await.map_err(VerifyBoardError::ReadFile)?;
if expected_contents != contents {
return Err(VerifyBoardError::VerifyContents {
expected: expected_contents.to_string(),
found: contents,
});
}
Ok(())
}
#[cfg(test)]
mod tests {
use {super::*, crate::TestUpdatePackage, fuchsia_async as fasync, matches::assert_matches};
#[fasync::run_singlethreaded(test)]
async fn verify_board_success_file_exists() {
let p = TestUpdatePackage::new().add_file("board", "kourtney").await;
assert_matches!(p.verify_board("kourtney").await, Ok(()));
}
#[fasync::run_singlethreaded(test)]
async fn verify_board_success_file_does_not_exist() {
let p = TestUpdatePackage::new();
assert_matches!(p.verify_board("kim").await, Ok(()));
}
#[fasync::run_singlethreaded(test)]
async fn verify_board_failure_verify_contents() {
let p = TestUpdatePackage::new().add_file("board", "khloe").await;
assert_matches!(
p.verify_board("kendall").await,
Err(VerifyBoardError::VerifyContents { expected, found })
if expected=="kendall" && found=="khloe"
);
}
}