hlsmultivariantsink: Serialise tests and increase channel timeout

Serialise the tests and increase the recv_timeout as it may
not be enough on the CI to do H264/H265 encoding for 1080p
streams which are we using for testing.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/2083>

Cargo.lock

@@ -2763,6 +2763,7 @@ dependencies = [
  "gstreamer-pbutils",
  "gstreamer-video",
  "m3u8-rs",
+ "serial_test",
  "thiserror 2.0.11",
 ]
 

net/hlsmultivariantsink/Cargo.toml

@@ -30,6 +30,7 @@ m3u8-rs = "5.0"
 anyhow = "1"
 gst-plugin-hlssink3 = { path = "../hlssink3" }
 gst-plugin-fmp4 = { path = "../../mux/fmp4" }
+serial_test = "3"
 
 [build-dependencies]
 gst-plugin-version-helper.workspace = true

net/hlsmultivariantsink/tests/hlsmultivariantsink.rs

@@ -14,6 +14,7 @@
 use gio::prelude::*;
 use gst::prelude::*;
 use gsthlsmultivariantsink::{HlsMultivariantSinkMuxerType, HlsMultivariantSinkPlaylistType};
+use serial_test::serial;
 use std::io::Write;
 use std::str::FromStr;
 use std::sync::mpsc::SyncSender;
@@ -323,6 +324,7 @@ fn setup_signals(
 }
 
 #[test]
+#[serial]
 fn hlsmultivariantsink_multiple_audio_rendition_multiple_video_variant() -> Result<(), ()> {
     init();
 
@@ -456,7 +458,7 @@ fn hlsmultivariantsink_multiple_audio_rendition_multiple_video_variant() -> Resu
     assert!(eos);
 
     let mut actual_events = Vec::new();
-    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
+    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_secs(30)) {
         actual_events.push(event);
     }
     let expected_events = {
@@ -509,6 +511,7 @@ low/video.m3u8
 }
 
 #[test]
+#[serial]
 fn hlsmultivariantsink_multiple_audio_rendition_single_video_variant() -> Result<(), ()> {
     init();
 
@@ -618,7 +621,7 @@ fn hlsmultivariantsink_multiple_audio_rendition_single_video_variant() -> Result
     assert!(eos);
 
     let mut actual_events = Vec::new();
-    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
+    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_secs(30)) {
         actual_events.push(event);
     }
     let expected_events = {
@@ -659,6 +662,7 @@ hi/video.m3u8
 }
 
 #[test]
+#[serial]
 fn hlsmultivariantsink_single_audio_rendition_multiple_video_variant() -> Result<(), ()> {
     init();
 
@@ -776,7 +780,7 @@ fn hlsmultivariantsink_single_audio_rendition_multiple_video_variant() -> Result
     assert!(eos);
 
     let mut actual_events = Vec::new();
-    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
+    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_secs(30)) {
         actual_events.push(event);
     }
     let expected_events = {
@@ -824,6 +828,7 @@ low/video.m3u8
 }
 
 #[test]
+#[serial]
 fn hlsmultivariantsink_multiple_audio_rendition_multiple_video_variant_with_mpegts(
 ) -> Result<(), ()> {
     init();
@@ -953,7 +958,7 @@ fn hlsmultivariantsink_multiple_audio_rendition_multiple_video_variant_with_mpeg
     assert!(eos);
 
     let mut actual_events = Vec::new();
-    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
+    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_secs(30)) {
         actual_events.push(event);
     }
     let expected_events = {
@@ -999,6 +1004,7 @@ low/video.m3u8
 }
 
 #[test]
+#[serial]
 fn hlsmultivariantsink_multiple_video_variant_with_mpegts_audio_video_muxed() -> Result<(), ()> {
     init();
 
@@ -1125,7 +1131,7 @@ fn hlsmultivariantsink_multiple_video_variant_with_mpegts_audio_video_muxed() ->
     assert!(eos);
 
     let mut actual_events = Vec::new();
-    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
+    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_secs(30)) {
         actual_events.push(event);
     }
     let expected_events = {
@@ -1164,6 +1170,7 @@ low-audio/audio-only.m3u8
 }
 
 #[test]
+#[serial]
 fn hlsmultivariantsink_multiple_audio_rendition_multiple_video_variant_with_mpegts_h265(
 ) -> Result<(), ()> {
     init();
@@ -1301,7 +1308,7 @@ fn hlsmultivariantsink_multiple_audio_rendition_multiple_video_variant_with_mpeg
     assert!(eos);
 
     let mut actual_events = Vec::new();
-    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
+    while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_secs(30)) {
         actual_events.push(event);
     }
     let expected_events = {