logos-blockchain-testing/examples/doc-snippets/src/testing_philosophy_determinism_first.rs

use std::time::Duration;

use testing_framework_core::scenario::ScenarioBuilder;
use testing_framework_workflows::{ChaosBuilderExt, ScenarioBuilderExt};

use crate::SnippetResult;

pub fn determinism_first() -> SnippetResult<()> {
    // Separate: functional test (deterministic)
    let _plan = ScenarioBuilder::topology_with(|t| t.network_star().validators(2).executors(1))
        .transactions_with(|txs| {
            txs.rate(5) // 5 transactions per block
        })
        .expect_consensus_liveness()
        .build()?;

    // Separate: chaos test (introduces randomness)
    let _chaos_plan =
        ScenarioBuilder::topology_with(|t| t.network_star().validators(3).executors(2))
            .enable_node_control()
            .chaos_with(|c| {
                c.restart()
                    .min_delay(Duration::from_secs(30))
                    .max_delay(Duration::from_secs(60))
                    .target_cooldown(Duration::from_secs(45))
                    .apply()
            })
            .transactions_with(|txs| {
                txs.rate(5) // 5 transactions per block
            })
            .expect_consensus_liveness()
            .build()?;
    Ok(())
}