fix: issue where custom-networks defaulted to forked-providers when t…

…hey were not forked networks. (ApeWorX#2239)

src/ape/api/networks.py

@@ -1017,15 +1017,26 @@ def providers(self):  # -> dict[str, Partial[ProviderAPI]]
         from ape.plugins._utils import clean_plugin_name
 
         providers = {}
-        for _, plugin_tuple in self.plugin_manager.providers:
+        for _, plugin_tuple in self._get_plugin_providers():
             ecosystem_name, network_name, provider_class = plugin_tuple
             provider_name = clean_plugin_name(provider_class.__module__.split(".")[0])
-
+            is_custom_with_config = self._is_custom and self.default_provider_name == provider_name
             # NOTE: Custom networks that are NOT from config must work with any provider.
+            #    Also, ensure we are only adding forked providers for forked networks and
+            #    non-forking providers for non-forked networks. For custom networks, it
+            #    can be trickier (see last condition).
+            # TODO: In 0.9, add a better way for class-level ForkedProviders to define
+            #   themselves as "Fork" providers.
             if (
                 self.is_adhoc
                 or (self.ecosystem.name == ecosystem_name and self.name == network_name)
-                or (self._is_custom and self.default_provider_name == provider_name)
+                or (
+                    is_custom_with_config
+                    and (
+                        (self.is_fork and "Fork" in provider_class.__name__)
+                        or (not self.is_fork and "Fork" not in provider_class.__name__)
+                    )
+                )
             ):
                 # NOTE: Lazily load provider config
                 providers[provider_name] = partial(
@@ -1037,6 +1048,10 @@ def providers(self):  # -> dict[str, Partial[ProviderAPI]]
 
         return providers
 
+    def _get_plugin_providers(self):
+        # NOTE: Abstracted for testing purposes.
+        return self.plugin_manager.providers
+
     def get_provider(
         self,
         provider_name: Optional[str] = None,
@@ -1080,7 +1095,6 @@ def get_provider(
         # If it can fork Ethereum (and we are asking for it) assume it can fork this one.
         # TODO: Refactor this approach to work for custom-forked non-EVM networks.
         common_forking_providers = self.network_manager.ethereum.mainnet_fork.providers
-
         if provider_name in self.providers:
             provider = self.providers[provider_name](provider_settings=provider_settings)
             return _set_provider(provider)

tests/functional/test_cli.py

@@ -315,9 +315,13 @@ def cmd(network):
             click.echo(f"Value is '{getattr(network, 'name', network)}'")
 
         result = runner.invoke(cmd, ("--network", f"ethereum:{network_name}:node"))
+        assert result.exit_code == 0
         assert f"Value is '{network_name}'" in result.output
+
+        # Fails because node is not a fork provider.
         result = runner.invoke(cmd, ("--network", f"ethereum:{network_name}-fork:node"))
-        assert f"Value is '{network_name}-fork'" in result.output
+        assert result.exit_code != 0
+        assert f"No provider named 'node' in network '{network_name}-fork'" in result.output
 
 
 def test_account_option(runner, keyfile_account):

tests/functional/test_network_api.py

@@ -195,3 +195,44 @@ def test_create_network_type_fork():
     actual = create_network_type(chain_id, chain_id, is_fork=True)
     assert issubclass(actual, NetworkAPI)
     assert issubclass(actual, ForkedNetworkAPI)
+
+
+def test_providers(ethereum):
+    network = ethereum.local
+    providers = network.providers
+    assert "test" in providers
+    assert "node" in providers
+
+
+def test_providers_custom_network(project, custom_networks_config_dict, ethereum):
+    with project.temp_config(**custom_networks_config_dict):
+        network = ethereum.apenet
+        actual = network.providers
+        assert "node" in actual
+
+
+def test_providers_custom_non_fork_network_does_not_use_fork_provider(
+    mocker, project, custom_networks_config_dict, ethereum
+):
+    # NOTE: Have to a mock a Fork provider since none ship with Ape core.
+    with project.temp_config(**custom_networks_config_dict):
+        network = ethereum.apenet
+        network.__dict__.pop("providers", None)  # de-cache
+
+        # Setup mock fork provider.
+        orig = network._get_plugin_providers
+        network._get_plugin_providers = mocker.MagicMock()
+        name = "foobar"
+
+        class MyForkProvider:
+            __module__ = "foobar.test"
+
+        network._get_plugin_providers.return_value = iter(
+            [(name, ("ethereum", "local", MyForkProvider))]
+        )
+        try:
+            actual = network.providers
+            assert name not in actual
+        finally:
+            network._get_plugin_providers = orig
+            network.__dict__.pop("providers", None)  # de-cache