core/integration/src/harness/fixture.rs

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use crate::harness::error::TestBinaryError;
use crate::harness::seeds::SeedError;
use async_trait::async_trait;
use iggy::prelude::IggyClient;
use std::collections::HashMap;

/// Trait for test fixtures that manage external dependencies.
///
/// Fixtures are set up before the harness, provide environment variables
/// for connector configuration, and optionally seed data after harness start.
#[async_trait]
pub trait TestFixture: Sized + Send {
    /// Set up the fixture (e.g., start containers, create database connections).
    async fn setup() -> Result<Self, TestBinaryError>;

    /// Environment variables to pass to the connector configuration.
    fn connectors_runtime_envs(&self) -> HashMap<String, String>;

    /// Optional seed function to run after harness start.
    async fn seed(&self, _client: &IggyClient) -> Result<(), SeedError> {
        Ok(())
    }

    /// Whether this fixture has a seed function that should be called.
    fn has_seed(&self) -> bool {
        false
    }
}