make system connected to remove warning from test run

f710a507 · Joseph Weston · b82c77bf · f710a507
Commit f710a507 authored Nov 26, 2019 by Joseph Weston
--- a/kwant/tests/test_builder.py
+++ b/kwant/tests/test_builder.py
@@ -752,7 +752,8 @@ def test_vectorized_requires_norbs(sym):
        lat = kwant.lattice.chain()

    syst = builder.Builder(sym, vectorize=True)
-    syst[lat(0)] = 1
+    syst[lat(0)] = syst[lat(1)] = 2
+    syst[lat(1), lat(0)] = -1

    raises(ValueError, syst.finalized)