enable DEBUG logging for a failed test in CI

.github/workflows/build.yml

@@ -30,5 +30,9 @@ jobs:
         run: cargo build
       - name: Run clippy and fail if any warnings
         run: cargo clippy -- -D warnings
-      - name: Run tests
+      - name: Run tests with debugs
+        if: matrix.os == 'ubuntu-20.04' || matrix.os == 'macos-latest'
+        run: RUST_LOG=debug cargo test
+      - name: Run tests on Windows
+        if: matrix.os == 'windows-latest'
         run: cargo test

src/dns_parser.rs

@@ -1270,7 +1270,7 @@ impl DnsIncoming {
             }
 
             if let Some(record) = rec {
-                debug!("{:?}", &record);
+                debug!("read_others: {:?}", &record);
                 self.answers.push(record);
             }
         }

src/service_daemon.rs

@@ -1526,7 +1526,7 @@ impl Zeroconf {
                     if info.is_ready() {
                         resolved.insert(ptr.alias.clone());
                         match sender.send(ServiceEvent::ServiceResolved(info)) {
-                            Ok(()) => debug!("sent service resolved"),
+                            Ok(()) => debug!("sent service resolved: {}", &ptr.alias),
                             Err(e) => error!("failed to send service resolved: {}", e),
                         }
                     } else {

tests/mdns_test.rs

@@ -7,7 +7,7 @@ use std::collections::{HashMap, HashSet};
 use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
 use std::thread::sleep;
 use std::time::{Duration, SystemTime};
-use test_log::test;
+// use test_log::test; // commented out for debugging a flaky test in CI.
 
 /// This test covers:
 /// register(announce), browse(query), response, unregister, shutdown.
@@ -1130,7 +1130,7 @@ fn hostname_resolution_timeout() {
     d.shutdown().unwrap();
 }
 
-#[test]
+#[test_log::test]
 fn test_cache_flush_record() {
     // Create a daemon
     let server = ServiceDaemon::new().expect("Failed to create server");