Add test for NET_RECEIVE{ INITIAL { ... }}.

test/usecases/net_receive/initsyn.mod

@@ -0,0 +1,14 @@
+NEURON {
+    POINT_PROCESS InitSyn
+    RANGE a0
+}
+
+ASSIGNED {
+    a0
+}
+
+NET_RECEIVE(w, a) {
+    INITIAL {
+        a = a0
+    }
+}

test/usecases/net_receive/test_initial.py

@@ -0,0 +1,27 @@
+import numpy as np
+
+from neuron import h, gui
+from neuron.units import ms
+
+
+def test_net_receive_initial():
+    nseg = 1
+
+    soma = h.Section()
+    soma.nseg = nseg
+
+    syn = h.InitSyn(soma(0.5))
+    syn.a0 = 329.012
+
+    stim = h.NetStim()
+    nc = h.NetCon(stim, syn, 0, 0.0, 0.1)
+
+    h.stdinit()
+
+    assert nc.wcnt() == 2
+    assert nc.weight[0] == 0.1
+    assert nc.weight[1] == syn.a0
+
+
+if __name__ == "__main__":
+    test_net_receive_initial()