diff --git a/src/runtime/tests.rs b/src/runtime/tests.rs
index 660e6da4fef7a9dd59b1ff8b040ff9bd66e741d9..e758c82a34f270a78d78d1574f131a6c9a574246 100644
--- a/src/runtime/tests.rs
+++ b/src/runtime/tests.rs
@@ -1059,65 +1059,65 @@ fn sequencer3_prim() {
     }
 }
 
-// #[test]
-// fn sequencer3_comp() {
-//     let test_log_path = Path::new("./logs/sequencer3_comp");
-//     let pdl = b"
-//     primitive fifo1_init(msg m, in a, out b) {
-//         while(true) synchronous {
-//             if(m != null && fires(b)) {
-//                 put(b, m);
-//                 m = null;
-//             } else if (m == null && fires(a)) {
-//                 m = get(a);
-//             }
-//         }
-//     }
-//     composite fifo1_full(in a, out b) {
-//         new fifo1_init(create(0), a, b);
-//     }
-//     composite fifo1(in a, out b) {
-//         new fifo1_init(null, a, b);
-//     }
-//     composite seq3composite(out a, out b, out c) {
-//         channel d -> e;
-//         channel f -> g;
-//         channel h -> i;
-//         channel j -> k;
-//         channel l -> m;
-//         channel n -> o;
+#[test]
+fn sequencer3_comp() {
+    let test_log_path = Path::new("./logs/sequencer3_comp");
+    let pdl = b"
+    primitive fifo1_init(msg m, in a, out b) {
+        while(true) synchronous {
+            if(m != null && fires(b)) {
+                put(b, m);
+                m = null;
+            } else if (m == null && fires(a)) {
+                m = get(a);
+            }
+        }
+    }
+    composite fifo1_full(in a, out b) {
+        new fifo1_init(create(0), a, b);
+    }
+    composite fifo1(in a, out b) {
+        new fifo1_init(null, a, b);
+    }
+    composite seq3composite(out a, out b, out c) {
+        channel d -> e;
+        channel f -> g;
+        channel h -> i;
+        channel j -> k;
+        channel l -> m;
+        channel n -> o;
 
-//         new fifo1_full(o, d);
-//         new replicator2(e, f, a);
-//         new fifo1(g, h);
-//         new replicator2(i, j, b);
-//         new fifo1(k, l);
-//         new replicator2(m, n, c);
-//     }
-//     ";
-//     let pd = reowolf::ProtocolDescription::parse(pdl).unwrap();
-//     let mut c = file_logged_configured_connector(0, test_log_path, Arc::new(pd));
+        new fifo1_full(o, d);
+        new replicator2(e, f, a);
+        new fifo1(g, h);
+        new replicator2(i, j, b);
+        new fifo1(k, l);
+        new replicator2(m, n, c);
+    }
+    ";
+    let pd = reowolf::ProtocolDescription::parse(pdl).unwrap();
+    let mut c = file_logged_configured_connector(0, test_log_path, Arc::new(pd));
 
-//     // setup a session between (a) native, and (b) composite sequencer3, connected by 3 ports.
-//     let [p0, g0] = c.new_port_pair();
-//     let [p1, g1] = c.new_port_pair();
-//     let [p2, g2] = c.new_port_pair();
-//     c.add_component(b"seq3composite", &[p0, p1, p2]).unwrap();
-//     c.connect(None).unwrap();
+    // setup a session between (a) native, and (b) composite sequencer3, connected by 3 ports.
+    let [p0, g0] = c.new_port_pair();
+    let [p1, g1] = c.new_port_pair();
+    let [p2, g2] = c.new_port_pair();
+    c.add_component(b"seq3composite", &[p0, p1, p2]).unwrap();
+    c.connect(None).unwrap();
 
-//     let mut which_of_three = move || {
-//         // setup three sync batches. sync. return which succeeded
-//         c.get(g0).unwrap();
-//         c.next_batch().unwrap();
-//         c.get(g1).unwrap();
-//         c.next_batch().unwrap();
-//         c.get(g2).unwrap();
-//         c.sync(None).unwrap()
-//     };
+    let mut which_of_three = move || {
+        // setup three sync batches. sync. return which succeeded
+        c.get(g0).unwrap();
+        c.next_batch().unwrap();
+        c.get(g1).unwrap();
+        c.next_batch().unwrap();
+        c.get(g2).unwrap();
+        c.sync(None).unwrap()
+    };
 
-//     const TEST_ROUNDS: usize = 50;
-//     // check that the batch index for rounds 0..TEST_ROUNDS are [0, 1, 2, 0, 1, 2, ...]
-//     for expected_batch_idx in (0..=2).cycle().take(TEST_ROUNDS) {
-//         assert_eq!(expected_batch_idx, which_of_three());
-//     }
-// }
+    const TEST_ROUNDS: usize = 50;
+    // check that the batch index for rounds 0..TEST_ROUNDS are [0, 1, 2, 0, 1, 2, ...]
+    for expected_batch_idx in (0..=2).cycle().take(TEST_ROUNDS) {
+        assert_eq!(expected_batch_idx, which_of_three());
+    }
+}