garnet/bin/setui/src/tests/device_tests.rs

// Copyright 2019 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.

use {
    crate::base::SettingType, crate::handler::device_storage::testing::InMemoryStorageFactory,
    crate::EnvironmentBuilder, fidl_fuchsia_settings::DeviceMarker, std::sync::Arc,
};

const ENV_NAME: &str = "settings_service_device_test_environment";

/// Tests that the FIDL calls for the device service result in appropriate commands
/// sent to the service.
#[fuchsia_async::run_until_stalled(test)]
async fn test_device() {
    let env = EnvironmentBuilder::new(Arc::new(InMemoryStorageFactory::new()))
        .settings(&[SettingType::Device])
        .spawn_and_get_nested_environment(ENV_NAME)
        .await
        .unwrap();

    let device_proxy = env.connect_to_service::<DeviceMarker>().expect("connected to service");

    let settings = device_proxy.watch().await.expect("watch completed");

    // The tag could be in different formats based on whether it's a release build or not,
    // just check that it is nonempty.
    match settings.build_tag {
        Some(tag) => assert!(tag.len() > 0),
        None => panic!("Build tag not loaded from file"),
    }
}