async fn start_branch() -> Result<ScopedInstance, Error> {
    let event_source = EventSource::new()?;
    let event_stream = event_source
        .subscribe(vec![EventSubscription::new(vec![Started::NAME], EventMode::Async)])
        .await
        .context("failed to subscribe to EventSource")?;
    event_source.start_component_tree().await;

    // Create a branch component instance.
    let branch =
        ScopedInstance::new(BRANCHES_COLLECTION.to_string(), BRANCH_COMPONENT_URL.to_string())
            .await
            .context("failed to create branch component instance")?;
    branch.start_with_binder_sync().await?;

    // Wait for the account providers in the branch to start.
    //
    // This ensures that the aggregated BankAccount service contains service instances from
    // all account providers started by the branch.
    EventSequence::new()
        .has_subset(
            vec![
                EventMatcher::ok().r#type(Started::TYPE).moniker(format!(
                    "./{}:{}:\\d+",
                    BRANCHES_COLLECTION,
                    branch.child_name()
                )),
                EventMatcher::ok().r#type(Started::TYPE).moniker(format!(
                    "./{}:{}:\\d+/{}:a:\\d+",
                    BRANCHES_COLLECTION,
                    branch.child_name(),
                    ACCOUNT_PROVIDERS_COLLECTION
                )),
                EventMatcher::ok().r#type(Started::TYPE).moniker(format!(
                    "./{}:{}:\\d+/{}:b:\\d+",
                    BRANCHES_COLLECTION,
                    branch.child_name(),
                    ACCOUNT_PROVIDERS_COLLECTION
                )),
            ],
            Ordering::Unordered,
        )
        .expect(event_stream)
        .await
        .context("event sequence did not match expected")?;

    Ok(branch)
}
/// Starts a branch child component.
Starts a branch child component.
Starts a branch child component .
async fn start_branch() -> Result<ScopedInstance, Error> {
    let event_source = EventSource::new()?;
    let event_stream = event_source
        .subscribe(vec![EventSubscription::new(vec![Started::NAME], EventMode::Async)])
        .await
        .context("failed to subscribe to EventSource")?;
    event_source.start_component_tree().await;
    // Create a branch component instance.
    let branch =
        ScopedInstance::new(BRANCHES_COLLECTION.to_string(), BRANCH_COMPONENT_URL.to_string())
            .await
            .context("failed to create branch component instance")?;
    branch.start_with_binder_sync().await?;
    // Wait for the account providers in the branch to start.
    //
    // This ensures that the aggregated BankAccount service contains service instances from
    // all account providers started by the branch.
    EventSequence::new()
        .has_subset(
            vec![
                EventMatcher::ok().r#type(Started::TYPE).moniker(format!(
                    "./{}:{}:\\d+",
                    BRANCHES_COLLECTION,
                    branch.child_name()
                )),
                EventMatcher::ok().r#type(Started::TYPE).moniker(format!(
                    "./{}:{}:\\d+/{}:a:\\d+",
                    BRANCHES_COLLECTION,
                    branch.child_name(),
                    ACCOUNT_PROVIDERS_COLLECTION
                )),
                EventMatcher::ok().r#type(Started::TYPE).moniker(format!(
                    "./{}:{}:\\d+/{}:b:\\d+",
                    BRANCHES_COLLECTION,
                    branch.child_name(),
                    ACCOUNT_PROVIDERS_COLLECTION
                )),
            ],
            Ordering::Unordered,
        )
        .expect(event_stream)
        .await
        .context("event sequence did not match expected")?;
    Ok(branch)
}
async fn start_branch ( ) -> Result < ScopedInstance , Error > { let event_source = EventSource :: new ( ) ? ; let event_stream = event_source . subscribe ( vec ! [ EventSubscription new ( vec [ Started NAME ] EventMode Async ) ] ) . await . context ( " " ) ? ; event_source . start_component_tree ( ) . await ; // Create a branch component instance. let branch = ScopedInstance :: new ( BRANCHES_COLLECTION . to_string ( ) , BRANCH_COMPONENT_URL . to_string ( ) ) . await . context ( " " ) ? ; branch . start_with_binder_sync ( ) . await ? ; // Wait for the account providers in the branch to start. // // This ensures that the aggregated BankAccount service contains service instances from // all account providers started by the branch. EventSequence :: new ( ) . has_subset ( vec ! [ EventMatcher ok ( ) r#type ( Started TYPE ) moniker ( format ( " \\ " BRANCHES_COLLECTION branch child_name ( ) ) ) EventMatcher ok ( ) r#type ( Started TYPE ) moniker ( format ( " \\ \\ " BRANCHES_COLLECTION branch child_name ( ) ACCOUNT_PROVIDERS_COLLECTION ) ) EventMatcher ok ( ) r#type ( Started TYPE ) moniker ( format ( " \\ \\ " BRANCHES_COLLECTION branch child_name ( ) ACCOUNT_PROVIDERS_COLLECTION ) ) ] , Ordering :: Unordered , ) . expect ( event_stream ) . await . context ( " " ) ? ; Ok ( branch ) }
Starts a branch child component.
Starts a branch child component .