tank-tests

Reusable integration test suite for the for Tank: the Rust data layer. Instead of duplicating many nearly identical tests inside every driver crate, tank-tests centralizes them with feature flags so each driver can opt out gracefully skipping unsupported features.

Purpose

• Ensures consistency: all drivers pass the same baseline CRUD, query, join, multi‑statement and type coverage.
• Reduces maintenance: add a new scenario once, every driver benefits.
• Accelerates new driver development: run the suite early, disable what you have not implemented yet, iterate.

Each module focuses on a distinct aspect of Tank functionality. They are orchestrated by execute_tests in src/lib.rs.

Feature Flags

The crate exposes opt-out feature flags ("disable-*") that skip entire capability families when a driver cannot yet support them.

Use them from the driver crate's Cargo.toml:

[dev-dependencies]
tank-tests = { version = "1", features = ["disable-arrays", "disable-lists", "disable-maps"] }

Setup

1. Add as a dev-dependency and invoke execute_tests in a tokio::test.
2. Call init_logs() to get structured output.
3. Wrap with a mutex to ensure effects do not overlap if the same test is executed twice against the same db.

#[cfg(test)]
mod tests {
    use std::sync::Mutex;
    use tank_core::Driver;
    use tank_mydb::{MyDBConnection, MyDBDriver};
    use tank_tests::{execute_tests, init_logs};
    static MUTEX: Mutex<()> = Mutex::new(());
    #[tokio::test]
    async fn mydb() {
        init_logs();
        let _guard = MUTEX.lock().unwrap();
        let driver = MyDBDriver::new();
        let connection = driver.connect("mydb://localhost:5555".into())
            .await
            .expect("Could not connect to MyDB");
        execute_tests(connection).await; // Runs all enabled modules sequentially
    }
}

Logging control

• init_logs() sets a test-friendly format and default WARN level (override via RUST_LOG).
• silent_logs! { ... } macro temporarily mutes logging for false positive error logs when they are expected.