pytest: test Bitcoin plugin registration and the bcli plugin

tests/plugins/bitcoin/part1.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+"""
+This registers part of the Bitcoin backend methods.
+We only use it for testing startup and we don't care about the actual values.
+"""
+import time
+
+from pyln.client import Plugin
+
+
+plugin = Plugin()
+
+
+@plugin.method("getfeerate")
+def getfeerate(plugin, **kwargs):
+    time.sleep(1)
+    return {}
+
+
+@plugin.method("getrawblockbyheight")
+def getblock(plugin, **kwargs):
+    time.sleep(1)
+    return {}
+
+
+@plugin.method("getchaininfo")
+def getchaininfo(plugin, **kwargs):
+    time.sleep(1)
+    return {}
+
+
+# We don't use these options, but it allows us to get to the expected failure.
+plugin.add_option("bitcoin-rpcuser", "", "")
+plugin.add_option("bitcoin-rpcpassword", "", "")
+plugin.add_option("bitcoin-rpcport", "", "")
+
+plugin.run()