Struct TestHarness 

pub struct TestHarness { /* private fields */ }

Test harness that can run the full test suite against any connector.

Loads credentials from .env at construction time and provides helpers to create public or authenticated connectors, query registry metadata, and look up default test symbols.

Example

let harness = TestHarness::new();

for id in harness.available_exchanges() {
    let connector = harness.create_authenticated(id).await
        .expect("creds found")
        .expect("connector created");
    // run suite...
}

Implementations

impl TestHarness

pub fn new() -> Self

Create a new harness, loading credentials from .env.

pub fn available_exchanges(&self) -> Vec<ExchangeId>

Get the list of exchanges that have API keys available in .env.

pub fn all_exchanges() -> Vec<ExchangeId>

Get the list of ALL registered exchanges (for public-only tests).

Uses the static ConnectorRegistry to enumerate every known connector.

pub async fn create_public( &self, id: ExchangeId, testnet: bool, ) -> ExchangeResult<Arc<dyn CoreConnector>>

Create a public (unauthenticated) connector for id.

Pass testnet: true to use the exchange’s testnet/sandbox environment.

pub async fn create_authenticated( &self, id: ExchangeId, ) -> Option<ExchangeResult<Arc<dyn CoreConnector>>>

Create an authenticated connector for id, if credentials are available.

Returns None if no credentials are present for this exchange. Returns Some(Err(_)) if credentials exist but connector creation fails.

pub fn test_symbol(id: ExchangeId) -> &'static str

Get a default, liquid test symbol for an exchange.

Returns a safe symbol appropriate for the exchange category:

• Crypto CEX/DEX derivatives → "BTC/USDT" or perpetual equivalent
• US stocks → "AAPL"
• Forex → "EUR/USD"
• Data aggregators → "BTC/USD"

Trait Implementations

impl Default for TestHarness

fn default() -> Self

Returns the “default value” for a type.