CI: add docker ipv4 tests on debian to GH action

.github/workflows/rust.yml

@@ -20,6 +20,15 @@ jobs:
 
     - name: Run tests
       run: cargo test --verbose
+
+  test-linux-ipv4:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build
+      run: docker build -t sacn-tests -f docker-linux/Dockerfile .
+    - name: Run tests
+      run: docker run --cap-add=NET_ADMIN sacn-tests
 
   test-windows:
     runs-on: windows-latest

docker-linux/Dockerfile

@@ -22,5 +22,4 @@ RUN chmod +x run_tests.sh
 # RUN cargo test
 
 # default command runs your multicast suite; tweak if needed
-CMD ["./run_tests.sh"]
-
+CMD ["./run_tests.sh"]

docker-linux/run_tests.sh

@@ -22,4 +22,4 @@ ip a show dev lo
 # sysctl -p
 
 cargo test
-cargo test ipv4 -- --ignored --nocapture
+cargo test --test ipv4_tests -- --ignored --nocapture --test-threads=1

tests/ipv4_tests.rs

@@ -37,7 +37,6 @@ use socket2::{Socket, Domain, Type};
 /// For some tests to work multiple instances of the protocol must be on the same network with the same port for example to test multiple simultaneous receivers, this means multiple IP's are needed.
 /// This is achieved by assigning multiple static IP's to the test machine and theses IP's are specified below.
 /// Theses must be changed depending on the network that the test machine is on.
-// pub const TEST_NETWORK_INTERFACE_IPV4: [&'static str; 3] = ["192.168.0.6", "192.168.0.7", "192.168.0.8"];
 pub const TEST_NETWORK_INTERFACE_IPV4: [&'static str; 3] = ["192.168.0.6", "192.168.0.7", "192.168.0.8"];