pytest: Remove directories of successful tests

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

tests/fixtures.py

@@ -5,6 +5,7 @@ import logging
 import os
 import pytest
 import re
+import shutil
 import tempfile
 import utils
 
@@ -99,6 +100,8 @@ def node_factory(directory, test_name, bitcoind, executor):
     if not ok:
         raise Exception("At least one lightning exited with unexpected non-zero return code")
 
+    shutil.rmtree(nf.directory)
+
 
 def getValgrindErrors(node):
     for error_file in os.listdir(node.daemon.lightning_dir):

tests/test_lightningd.py

@@ -337,6 +337,8 @@ class BaseLightningDTests(unittest.TestCase):
         if not ok:
             raise Exception("At least one lightning exited with unexpected non-zero return code")
 
+        shutil.rmtree(self.node_factory.directory)
+
 
 class LightningDTests(BaseLightningDTests):
     def connect(self, may_reconnect=False):