From 14e2cf6c181658a283abb3ae83104717afb9403d Mon Sep 17 00:00:00 2001
From: Pablo Piskunow <pablo.perez.piskunow@gmail.com>
Date: Thu, 25 Jun 2020 15:30:11 +0200
Subject: [PATCH] test for special and general cases
---
kwant/tests/test_builder.py | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)
diff --git a/kwant/tests/test_builder.py b/kwant/tests/test_builder.py
index fc9a052f..46b3faee 100644
--- a/kwant/tests/test_builder.py
+++ b/kwant/tests/test_builder.py
@@ -863,18 +863,20 @@ def test_dangling():
sorted(site.tag for site in syst1.sites()))
def test_dangling_with_symmetry():
- length = 3
- symm = kwant.TranslationalSymmetry((length, 0))
- lat = kwant.lattice.square(norbs=1)
- syst = kwant.Builder(symmetry=symm)
- for x in range(length):
- syst[lat(x, 0)] = 0
- syst[lat(x, 1)] = 0
- syst[lat.neighbors()] = -1
- # remove neighbors of site at (lenght-1, 0), dangling across symm
- del syst[lat(length - 2, 0)]
- del syst[lat(length - 1, 1)]
- syst.eradicate_dangling()
+ # lenght = 3 is the special case that gives all dangling bonds
+ # lenght = 4 is the standard case of dangling bonds across the symmetry
+ for length in [3, 4]:
+ symm = kwant.TranslationalSymmetry((length, 0))
+ lat = kwant.lattice.square(norbs=1)
+ syst = kwant.Builder(symmetry=symm)
+ for x in range(length):
+ syst[lat(x, 0)] = 0
+ syst[lat(x, 1)] = 0
+ syst[lat.neighbors()] = -1
+ # remove neighbors of site at (lenght-1, 0), dangling across symm
+ del syst[lat(length - 2, 0)]
+ del syst[lat(length - 1, 1)]
+ syst.eradicate_dangling()
def test_builder_with_symmetry():
g = kwant.lattice.general(ta.identity(3), norbs=1)
--
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