[Tests] Move assert_start_raises_init_error method to TestNode

Author: jnewbery

test/functional/feature_config_args.py

@@ -25,13 +25,13 @@ def run_test(self):
 
         # Check that using -datadir argument on non-existent directory fails
         self.nodes[0].datadir = new_data_dir
-        self.assert_start_raises_init_error(0, ['-datadir='+new_data_dir], 'Error: Specified data directory "' + new_data_dir + '" does not exist.')
+        self.nodes[0].assert_start_raises_init_error(['-datadir='+new_data_dir], 'Error: Specified data directory "' + new_data_dir + '" does not exist.')
 
         # Check that using non-existent datadir in conf file fails
         conf_file = os.path.join(default_data_dir, "bitcoin.conf")
         with open(conf_file, 'a', encoding='utf8') as f:
             f.write("datadir=" + new_data_dir + "\n")
-        self.assert_start_raises_init_error(0, ['-conf='+conf_file], 'Error reading configuration file: specified data directory "' + new_data_dir + '" does not exist.')
+        self.nodes[0].assert_start_raises_init_error(['-conf='+conf_file], 'Error reading configuration file: specified data directory "' + new_data_dir + '" does not exist.')
 
         # Create the directory and ensure the config file now works
         os.mkdir(new_data_dir)

test/functional/feature_logging.py

@@ -30,7 +30,7 @@ def run_test(self):
         invdir = os.path.join(self.nodes[0].datadir, "regtest", "foo")
         invalidname = os.path.join("foo", "foo.log")
         self.stop_node(0)
-        self.assert_start_raises_init_error(0, ["-debuglogfile=%s" % (invalidname)],
+        self.nodes[0].assert_start_raises_init_error(["-debuglogfile=%s" % (invalidname)],
                                                 "Error: Could not open debug log file")
         assert not os.path.isfile(os.path.join(invdir, "foo.log"))
 
@@ -44,7 +44,7 @@ def run_test(self):
         self.stop_node(0)
         invdir = os.path.join(self.options.tmpdir, "foo")
         invalidname = os.path.join(invdir, "foo.log")
-        self.assert_start_raises_init_error(0, ["-debuglogfile=%s" % invalidname],
+        self.nodes[0].assert_start_raises_init_error(["-debuglogfile=%s" % invalidname],
                                                "Error: Could not open debug log file")
         assert not os.path.isfile(os.path.join(invdir, "foo.log"))
 

test/functional/feature_uacomment.py

@@ -24,12 +24,12 @@ def run_test(self):
         self.log.info("test -uacomment max length")
         self.stop_node(0)
         expected = "exceeds maximum length (256). Reduce the number or size of uacomments."
-        self.assert_start_raises_init_error(0, ["-uacomment=" + 'a' * 256], expected)
+        self.nodes[0].assert_start_raises_init_error(["-uacomment=" + 'a' * 256], expected)
 
         self.log.info("test -uacomment unsafe characters")
         for unsafe_char in ['/', ':', '(', ')']:
             expected = "User Agent comment (" + unsafe_char + ") contains unsafe characters"
-            self.assert_start_raises_init_error(0, ["-uacomment=" + unsafe_char], expected)
+            self.nodes[0].assert_start_raises_init_error(["-uacomment=" + unsafe_char], expected)
 
 if __name__ == '__main__':
     UacommentTest().main()

test/functional/test_framework/test_framework.py

@@ -281,27 +281,6 @@ def restart_node(self, i, extra_args=None):
         self.stop_node(i)
         self.start_node(i, extra_args)
 
-    def assert_start_raises_init_error(self, i, extra_args=None, expected_msg=None, *args, **kwargs):
-        with tempfile.SpooledTemporaryFile(max_size=2**16) as log_stderr:
-            try:
-                self.start_node(i, extra_args, stderr=log_stderr, *args, **kwargs)
-                self.stop_node(i)
-            except Exception as e:
-                assert 'bitcoind exited' in str(e)  # node must have shutdown
-                self.nodes[i].running = False
-                self.nodes[i].process = None
-                if expected_msg is not None:
-                    log_stderr.seek(0)
-                    stderr = log_stderr.read().decode('utf-8')
-                    if expected_msg not in stderr:
-                        raise AssertionError("Expected error \"" + expected_msg + "\" not found in:\n" + stderr)
-            else:
-                if expected_msg is None:
-                    assert_msg = "bitcoind should have exited with an error"
-                else:
-                    assert_msg = "bitcoind should have exited with expected error " + expected_msg
-                raise AssertionError(assert_msg)
-
     def wait_for_node_exit(self, i, timeout):
         self.nodes[i].process.wait(timeout)
 

test/functional/test_framework/test_node.py

@@ -12,6 +12,7 @@
 import os
 import re
 import subprocess
+import tempfile
 import time
 
 from .authproxy import JSONRPCException
@@ -165,6 +166,33 @@ def is_node_stopped(self):
     def wait_until_stopped(self, timeout=BITCOIND_PROC_WAIT_TIMEOUT):
         wait_until(self.is_node_stopped, timeout=timeout)
 
+    def assert_start_raises_init_error(self, extra_args=None, expected_msg=None, *args, **kwargs):
+        """Attempt to start the node and expect it to raise an error.
+
+        Will throw if bitcoind starts without an error.
+        Will throw if an expected_msg is provided and it does not appear in bitcoind's stdout."""
+        with tempfile.SpooledTemporaryFile(max_size=2**16) as log_stderr:
+            try:
+                self.start(extra_args, stderr=log_stderr, *args, **kwargs)
+                self.wait_for_rpc_connection()
+                self.stop_node()
+                self.wait_util_stopped()
+            except Exception as e:
+                assert 'bitcoind exited' in str(e)  # node must have shutdown
+                self.running = False
+                self.process = None
+                if expected_msg is not None:
+                    log_stderr.seek(0)
+                    stderr = log_stderr.read().decode('utf-8')
+                    if expected_msg not in stderr:
+                        raise AssertionError("Expected error \"" + expected_msg + "\" not found in:\n" + stderr)
+            else:
+                if expected_msg is None:
+                    assert_msg = "bitcoind should have exited with an error"
+                else:
+                    assert_msg = "bitcoind should have exited with expected error " + expected_msg
+                raise AssertionError(assert_msg)
+
     def node_encrypt_wallet(self, passphrase):
         """"Encrypts the wallet.
 

test/functional/wallet_hd.py

@@ -23,7 +23,7 @@ def run_test (self):
 
         # Make sure can't switch off usehd after wallet creation
         self.stop_node(1)
-        self.assert_start_raises_init_error(1, ['-usehd=0'], 'already existing HD wallet')
+        self.nodes[1].assert_start_raises_init_error(['-usehd=0'], 'already existing HD wallet')
         self.start_node(1)
         connect_nodes_bi(self.nodes, 0, 1)
 

test/functional/wallet_multiwallet.py

@@ -62,27 +62,27 @@ def run_test(self):
         # should not initialize if wallet path can't be created
         self.assert_start_raises_init_error(0, ['-wallet=wallet.dat/bad'], 'Not a directory')
 
-        self.assert_start_raises_init_error(0, ['-walletdir=wallets'], 'Error: Specified -walletdir "wallets" does not exist')
-        self.assert_start_raises_init_error(0, ['-walletdir=wallets'], 'Error: Specified -walletdir "wallets" is a relative path', cwd=data_dir())
-        self.assert_start_raises_init_error(0, ['-walletdir=debug.log'], 'Error: Specified -walletdir "debug.log" is not a directory', cwd=data_dir())
+        self.nodes[0].assert_start_raises_init_error(['-walletdir=wallets'], 'Error: Specified -walletdir "wallets" does not exist')
+        self.nodes[0].assert_start_raises_init_error(['-walletdir=wallets'], 'Error: Specified -walletdir "wallets" is a relative path', cwd=data_dir())
+        self.nodes[0].assert_start_raises_init_error(['-walletdir=debug.log'], 'Error: Specified -walletdir "debug.log" is not a directory', cwd=data_dir())
 
         # should not initialize if there are duplicate wallets
-        self.assert_start_raises_init_error(0, ['-wallet=w1', '-wallet=w1'], 'Error loading wallet w1. Duplicate -wallet filename specified.')
+        self.nodes[0].assert_start_raises_init_error(['-wallet=w1', '-wallet=w1'], 'Error loading wallet w1. Duplicate -wallet filename specified.')
 
         # should not initialize if one wallet is a copy of another
         shutil.copyfile(wallet_dir('w8'), wallet_dir('w8_copy'))
-        self.assert_start_raises_init_error(0, ['-wallet=w8', '-wallet=w8_copy'], 'duplicates fileid')
+        self.nodes[0].assert_start_raises_init_error(['-wallet=w8', '-wallet=w8_copy'], 'duplicates fileid')
 
         # should not initialize if wallet file is a symlink
         os.symlink('w8', wallet_dir('w8_symlink'))
-        self.assert_start_raises_init_error(0, ['-wallet=w8_symlink'], 'Invalid -wallet path')
+        self.nodes[0].assert_start_raises_init_error(['-wallet=w8_symlink'], 'Invalid -wallet path')
 
         # should not initialize if the specified walletdir does not exist
-        self.assert_start_raises_init_error(0, ['-walletdir=bad'], 'Error: Specified -walletdir "bad" does not exist')
+        self.nodes[0].assert_start_raises_init_error(['-walletdir=bad'], 'Error: Specified -walletdir "bad" does not exist')
         # should not initialize if the specified walletdir is not a directory
         not_a_dir = wallet_dir('notadir')
         open(not_a_dir, 'a').close()
-        self.assert_start_raises_init_error(0, ['-walletdir=' + not_a_dir], 'Error: Specified -walletdir "' + not_a_dir + '" is not a directory')
+        self.nodes[0].assert_start_raises_init_error(['-walletdir=' + not_a_dir], 'Error: Specified -walletdir "' + not_a_dir + '" is not a directory')
 
         # if wallets/ doesn't exist, datadir should be the default wallet dir
         wallet_dir2 = data_dir('walletdir')
@@ -103,7 +103,7 @@ def run_test(self):
         competing_wallet_dir = os.path.join(self.options.tmpdir, 'competing_walletdir')
         os.mkdir(competing_wallet_dir)
         self.restart_node(0, ['-walletdir='+competing_wallet_dir])
-        self.assert_start_raises_init_error(1, ['-walletdir='+competing_wallet_dir], 'Error initializing wallet database environment')
+        self.nodes[1].assert_start_raises_init_error(['-walletdir='+competing_wallet_dir], 'Error initializing wallet database environment')
 
         self.restart_node(0, extra_args)