test: Add tests

Author: MarcoFalke

test/functional/tool_wallet.py

@@ -188,6 +188,8 @@ def test_invalid_tool_commands_and_args(self):
         self.assert_raises_tool_error('Invalid command: help', 'help')
         self.assert_raises_tool_error('Error: two methods provided (info and create). Only one method should be provided.', 'info', 'create')
         self.assert_raises_tool_error('Error parsing command line arguments: Invalid parameter -foo', '-foo')
+        self.assert_raises_tool_error('No method provided. Run `bitcoin-wallet -help` for valid methods.')
+        self.assert_raises_tool_error('Wallet name must be provided when creating a new wallet.', 'create')
         locked_dir = os.path.join(self.options.tmpdir, "node0", "regtest", "wallets")
         error = 'Error initializing wallet database environment "{}"!'.format(locked_dir)
         if self.options.descriptors: