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-rw-r--r--qa/rpc-tests/test_framework/util.py33
1 files changed, 20 insertions, 13 deletions
diff --git a/qa/rpc-tests/test_framework/util.py b/qa/rpc-tests/test_framework/util.py
index 6784177aaa..0e522e78d4 100644
--- a/qa/rpc-tests/test_framework/util.py
+++ b/qa/rpc-tests/test_framework/util.py
@@ -182,24 +182,28 @@ def wait_for_bitcoind_start(process, url, i):
raise # unkown JSON RPC exception
time.sleep(0.25)
-def initialize_chain(test_dir):
+def initialize_chain(test_dir, num_nodes):
"""
- Create (or copy from cache) a 200-block-long chain and
- 4 wallets.
+ Create a cache of a 200-block-long chain (with wallet) for MAX_NODES
+ Afterward, create num_nodes copies from the cache
"""
- if (not os.path.isdir(os.path.join("cache","node0"))
- or not os.path.isdir(os.path.join("cache","node1"))
- or not os.path.isdir(os.path.join("cache","node2"))
- or not os.path.isdir(os.path.join("cache","node3"))):
+ assert num_nodes <= MAX_NODES
+ create_cache = False
+ for i in range(MAX_NODES):
+ if not os.path.isdir(os.path.join('cache', 'node'+str(i))):
+ create_cache = True
+ break
+
+ if create_cache:
#find and delete old cache directories if any exist
- for i in range(4):
+ for i in range(MAX_NODES):
if os.path.isdir(os.path.join("cache","node"+str(i))):
shutil.rmtree(os.path.join("cache","node"+str(i)))
# Create cache directories, run bitcoinds:
- for i in range(4):
+ for i in range(MAX_NODES):
datadir=initialize_datadir("cache", i)
args = [ os.getenv("BITCOIND", "bitcoind"), "-server", "-keypool=1", "-datadir="+datadir, "-discover=0" ]
if i > 0:
@@ -212,15 +216,18 @@ def initialize_chain(test_dir):
print("initialize_chain: RPC succesfully started")
rpcs = []
- for i in range(4):
+ for i in range(MAX_NODES):
try:
rpcs.append(get_rpc_proxy(rpc_url(i), i))
except:
sys.stderr.write("Error connecting to "+url+"\n")
sys.exit(1)
- # Create a 200-block-long chain; each of the 4 nodes
+ # Create a 200-block-long chain; each of the 4 first nodes
# gets 25 mature blocks and 25 immature.
+ # Note: To preserve compatibility with older versions of
+ # initialize_chain, only 4 nodes will generate coins.
+ #
# blocks are created with timestamps 10 minutes apart
# starting from 2010 minutes in the past
enable_mocktime()
@@ -238,13 +245,13 @@ def initialize_chain(test_dir):
stop_nodes(rpcs)
wait_bitcoinds()
disable_mocktime()
- for i in range(4):
+ for i in range(MAX_NODES):
os.remove(log_filename("cache", i, "debug.log"))
os.remove(log_filename("cache", i, "db.log"))
os.remove(log_filename("cache", i, "peers.dat"))
os.remove(log_filename("cache", i, "fee_estimates.dat"))
- for i in range(4):
+ for i in range(num_nodes):
from_dir = os.path.join("cache", "node"+str(i))
to_dir = os.path.join(test_dir, "node"+str(i))
shutil.copytree(from_dir, to_dir)