elements: Skip DB migration tests if we're not running in regtest

Signed-off-by: Christian Decker <decker.christian@gmail.com>

tests/fixtures.py

@@ -15,6 +15,7 @@ with open('config.vars') as configfile:
     config = dict([(line.rstrip().split('=', 1)) for line in configfile])
 
 VALGRIND = os.getenv("VALGRIND", config['VALGRIND']) == "1"
+TEST_NETWORK = os.getenv("TEST_NETWORK", config['TEST_NETWORK'])
 DEVELOPER = os.getenv("DEVELOPER", config['DEVELOPER']) == "1"
 TEST_DEBUG = os.getenv("TEST_DEBUG", "0") == "1"
 

tests/test_db.py

@@ -1,10 +1,12 @@
 from fixtures import *  # noqa: F401,F403
 from utils import wait_for, sync_blockheight, COMPAT
+from fixtures import TEST_NETWORK
 
 import os
 import unittest
 
 
+@unittest.skipIf(TEST_NETWORK != 'regtest', "The DB migration is network specific due to the chain var.")
 def test_db_dangling_peer_fix(node_factory):
     # This was taken from test_fail_unconfirmed() node.
     l1 = node_factory.get_node(dbfile='dangling-peer.sqlite3.xz')