functional_tests: add save_bc

tests/functional_tests/blockchain.py

@@ -330,6 +330,9 @@ class BlockchainTest():
         for txid in [alt_blocks[0], alt_blocks[2], alt_blocks[4]]:
           assert len([chain for chain in res.chains if chain.block_hash == txid]) == 1
 
+        print('Saving blockchain explicitely')
+        daemon.save_bc()
+
 
 if __name__ == '__main__':
     BlockchainTest().run_test()

utils/python-rpc/framework/daemon.py

@@ -350,3 +350,8 @@ class Daemon(object):
             'key_images': key_images,
         }
         return self.rpc.send_request('/is_key_image_spent', is_key_image_spent)
+
+    def save_bc(self):
+        save_bc = {
+        }
+        return self.rpc.send_request('/save_bc', save_bc)