Merge #20267: Disable and fix tests for when BDB is not compiled

49797c3ccf tests: Disable bdb dump test when no bdb (Andrew Chow)
1194cf9269 Fix wallet_send.py wallet setup to work with descriptors (Andrew Chow)
fbaea7bfe4 Require legacy wallet for wallet_upgradewallet.py (Andrew Chow)
b1b679e0ab Explicitly mark legacy wallet tests as such (Andrew Chow)
09514e1bef Setup wallets for interface_zmq.py (Andrew Chow)
4d03ef9a73 Use MiniWallet in rpc_net.py (Andrew Chow)
4de23824b0 Setup wallets for interface_bitcoin_cli.py (Andrew Chow)
7c71c627d2 Setup wallets with descriptors for feature_notifications (Andrew Chow)
1f1bef8dba Have feature_filelock.py test both bdb and sqlite, depending on compiled (Andrew Chow)
c77975abc0 Disable upgrades tests that require BDB if BDB is not compiled (Andrew Chow)
1f20cac9d4 Disable wallet_descriptor.py bdb format check if BDB is not compiled (Andrew Chow)
3641597d7e tests: Don't make any wallets unless wallet is required (Andrew Chow)
b9b88f57a9 Skip legacy wallet reliant tests if BDB is not compiled (Andrew Chow)
6f36242389 tests: Set descriptors default based on compilation (Andrew Chow)

Pull request description:

  This PR fixes tests for when BDB is not compiled. Tests which rely on or test legacy wallet behavior are disabled and skipped when BDB is not compiled. For the components of some tests that are for legacy wallet things, those parts of the tests are skipped.

  For the majority of tests, changes are made so that they can be run with either legacy wallets or descriptor wallets without materially effecting the test. Most tests only need the wallet for balance and transactions, so the type of wallet is not an important part of those tests. Additionally, some tests are wallet agnostic and modified to instead use the test framework's MiniWallet.

ACKs for top commit:
  laanwj:
    ACK 49797c3ccf
  ryanofsky:
    Code review ACK 49797c3ccf. Only change since last review is dropping last commit. Previous review w/ suggestions for future followup is https://github.com/bitcoin/bitcoin/pull/20267#pullrequestreview-581508843

Tree-SHA512: 69659f8a81fb437ecbca962f4082c12835282dbf1fba7d9952f727a49e01981d749af9b09feda1c8ca737516c7d7a08ef17e782795df3fa69892d5021b41c1ed

test/functional/test_framework/test_framework.py

@@ -108,6 +108,9 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
         # skipped. If list is truncated, wallet creation is skipped and keys
         # are not imported.
         self.wallet_names = None
+        # By default the wallet is not required. Set to true by skip_if_no_wallet().
+        # When False, we ignore wallet_names regardless of what it is.
+        self.requires_wallet = False
         self.set_test_params()
         assert self.wallet_names is None or len(self.wallet_names) <= self.num_nodes
         if self.options.timeout_factor == 0 :
@@ -184,15 +187,30 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
         parser.add_argument('--timeout-factor', dest="timeout_factor", type=float, default=1.0, help='adjust test timeouts by a factor. Setting it to 0 disables all timeouts')
 
         group = parser.add_mutually_exclusive_group()
-        group.add_argument("--descriptors", default=False, action="store_true",
+        group.add_argument("--descriptors", action='store_const', const=True,
                             help="Run test using a descriptor wallet", dest='descriptors')
-        group.add_argument("--legacy-wallet", default=False, action="store_false",
+        group.add_argument("--legacy-wallet", action='store_const', const=False,
                             help="Run test using legacy wallets", dest='descriptors')
 
         self.add_options(parser)
         self.options = parser.parse_args()
         self.options.previous_releases_path = previous_releases_path
 
+        config = configparser.ConfigParser()
+        config.read_file(open(self.options.configfile))
+        self.config = config
+
+        if self.options.descriptors is None:
+            # Prefer BDB unless it isn't available
+            if self.is_bdb_compiled():
+                self.options.descriptors = False
+            elif self.is_sqlite_compiled():
+                self.options.descriptors = True
+            else:
+                # If neither are compiled, tests requiring a wallet will be skipped and the value of self.options.descriptors won't matter
+                # It still needs to exist and be None in order for tests to work however.
+                self.options.descriptors = None
+
     def setup(self):
         """Call this method to start up the test framework object with options set."""
 
@@ -202,9 +220,8 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
 
         self.options.cachedir = os.path.abspath(self.options.cachedir)
 
-        config = configparser.ConfigParser()
-        config.read_file(open(self.options.configfile))
-        self.config = config
+        config = self.config
+
         fname_bitcoind = os.path.join(
             config["environment"]["BUILDDIR"],
             "src",
@@ -377,7 +394,7 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
             extra_args = self.extra_args
         self.add_nodes(self.num_nodes, extra_args)
         self.start_nodes()
-        if self.is_wallet_compiled():
+        if self.requires_wallet:
             self.import_deterministic_coinbase_privkeys()
         if not self.setup_clean_chain:
             for n in self.nodes:
@@ -769,10 +786,13 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
 
     def skip_if_no_wallet(self):
         """Skip the running test if wallet has not been compiled."""
+        self.requires_wallet = True
         if not self.is_wallet_compiled():
             raise SkipTest("wallet has not been compiled.")
         if self.options.descriptors:
             self.skip_if_no_sqlite()
+        else:
+            self.skip_if_no_bdb()
 
     def skip_if_no_sqlite(self):
         """Skip the running test if sqlite has not been compiled."""