ftr 0.7.0

A fast, parallel ICMP traceroute with ASN lookup, reverse DNS, and ISP detection
Documentation 
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//! Tests for the new handle pattern API
//!
//! These tests verify that the new Ftr struct works correctly
//! and can coexist with the legacy global cache API during migration.

use ftr::{Ftr, TracerouteConfigBuilder};

#[tokio::test]
async fn test_ftr_instance_basic_trace() {
    // Skip on GitHub Actions where ICMP might not work
    if std::env::var("GITHUB_ACTIONS").is_ok() {
        let os = std::env::consts::OS;
        if os == "windows" || os == "linux" {
            eprintln!("Skipping test on GitHub Actions {} runner", os);
            return;
        }
    }

    let ftr = Ftr::new();
    let result = ftr.trace("127.0.0.1").await;

    assert!(result.is_ok(), "Failed to trace localhost: {:?}", result);
    let trace_result = result.unwrap();
    assert!(
        !trace_result.hops.is_empty(),
        "Should have at least one hop"
    );
}

#[tokio::test]
async fn test_ftr_instance_with_config() {
    // Skip on GitHub Actions where ICMP might not work
    if std::env::var("GITHUB_ACTIONS").is_ok() {
        let os = std::env::consts::OS;
        if os == "windows" || os == "linux" {
            eprintln!("Skipping test on GitHub Actions {} runner", os);
            return;
        }
    }

    let ftr = Ftr::new();
    let config = TracerouteConfigBuilder::new()
        .target("127.0.0.1")
        .max_hops(5)
        .queries(1)
        .build()
        .expect("Failed to build config");

    let result = ftr.trace_with_config(config).await;

    assert!(result.is_ok(), "Failed to trace with config: {:?}", result);
    let trace_result = result.unwrap();
    assert!(
        !trace_result.hops.is_empty(),
        "Should have at least one hop"
    );
}

#[tokio::test]
async fn test_multiple_ftr_instances() {
    // This test verifies that multiple Ftr instances can coexist
    // In the future, this will test cache isolation
    let ftr1 = Ftr::new();
    let ftr2 = Ftr::new();

    // For now, both instances use the global caches
    // After Phase 2, they will have isolated caches
    assert!(ftr1.trace("127.0.0.1").await.is_ok());
    assert!(ftr2.trace("127.0.0.1").await.is_ok());
}

#[tokio::test]
async fn test_ftr_with_custom_caches() {
    // Test creating an Ftr instance with pre-initialized caches
    let asn_cache = ftr::asn::cache::AsnCache::new();
    let rdns_cache = ftr::dns::cache::RdnsCache::with_default_ttl();
    let stun_cache = ftr::public_ip::stun_cache::StunCache::new();

    let ftr = Ftr::with_caches(Some(asn_cache), Some(rdns_cache), Some(stun_cache));

    // Verify it works
    let result = ftr.trace("127.0.0.1").await;
    assert!(result.is_ok(), "Failed with custom caches: {:?}", result);
}

#[tokio::test]
async fn test_ftr_default_impl() {
    let ftr = Ftr::default();
    assert!(ftr.trace("127.0.0.1").await.is_ok());
}

#[tokio::test]
async fn test_ftr_uses_injected_caches() {
    // This test verifies that Ftr uses its own caches, not global ones
    // We can't fully test cache isolation until Phase 5 removes global caches,
    // but we can verify the plumbing works

    // Create custom caches
    let asn_cache = ftr::asn::cache::AsnCache::new();
    let rdns_cache = ftr::dns::cache::RdnsCache::with_default_ttl();
    let stun_cache = ftr::public_ip::stun_cache::StunCache::new();

    // Create Ftr with custom caches
    let ftr = Ftr::with_caches(Some(asn_cache), Some(rdns_cache), Some(stun_cache));

    // Configure a trace with enrichment enabled to exercise the caches
    let config = ftr::TracerouteConfigBuilder::new()
        .target("127.0.0.1")
        .max_hops(3)
        .queries(1)
        .enable_asn_lookup(true)
        .enable_rdns(true)
        .build()
        .expect("Failed to build config");

    let result = ftr.trace_with_config(config).await;
    assert!(
        result.is_ok(),
        "Trace with custom caches failed: {:?}",
        result
    );

    // Once Phase 5 is complete, we can add assertions to verify
    // cache isolation between instances
}