diff --git a/tests/node_comb.rs b/tests/node_comb.rs
index 7c4c304..2d394ca 100644
--- a/tests/node_comb.rs
+++ b/tests/node_comb.rs
@@ -48,3 +48,43 @@ fn check_node_comb_1() {
         (2993, 1420), (3004, 1775), (3994, 1297), (4005, 1485)
     ]);
 }
+
+#[test]
+fn check_node_comb_time() {
+    let (node_conf, mut node_exec) = new_node_engine();
+    let mut matrix = Matrix::new(node_conf, 3, 3);
+
+    let test    = NodeId::Test(0);
+    let comb_1  = NodeId::Comb(0);
+    let out_1   = NodeId::Out(0);
+    matrix.place(0, 1,
+        Cell::empty(test)
+        .input(None, None, None)
+        .out(None, test.out("tsig"), None));
+    matrix.place(1, 1,
+        Cell::empty(comb_1)
+        .input(None, comb_1.inp("inp"), None)
+        .out(None, comb_1.out("sig"), None));
+    matrix.place(2, 2,
+        Cell::empty(out_1)
+        .input(None, out_1.inp("ch1"), out_1.inp("ch1"))
+        .out(None, None, None));
+
+    pset_n(&mut matrix, comb_1, "g", 0.75);
+    pset_d(&mut matrix, comb_1, "time", 100.0);
+    matrix.sync().unwrap();
+
+    pset_n(&mut matrix, test, "trig", 1.0);
+
+    let (out_l, _) = run_for_ms(&mut node_exec, 300.0);
+    let rms_mimax = calc_rms_mimax_each_ms(&out_l[..], 25.0);
+    assert_minmax_of_rms!(rms_mimax[0], (0.0, 1.0));
+    assert_minmax_of_rms!(rms_mimax[1], (0.0, 0.0));
+    assert_minmax_of_rms!(rms_mimax[2], (0.0, 0.0));
+    assert_minmax_of_rms!(rms_mimax[3], (0.0, 0.0));
+    assert_minmax_of_rms!(rms_mimax[4], (-0.0001, 0.7502));
+    assert_minmax_of_rms!(rms_mimax[5], (0.0, 0.0));
+    assert_minmax_of_rms!(rms_mimax[6], (0.0, 0.0));
+    assert_minmax_of_rms!(rms_mimax[7], (0.0, 0.0));
+    assert_minmax_of_rms!(rms_mimax[8], (-0.00027, 0.56277));
+}