config: add UnitTestNet configuration to embed configs

Tests should use embed config too.

Signed-off-by: Ekaterina Pavlova <ekt@morphbits.io>

config/config_embed.go

@@ -30,3 +30,8 @@ var MainNetNeoFS []byte
 //
 //go:embed protocol.testnet.neofs.yml
 var TestNetNeoFS []byte
+
+// UnitTestNet is the unit test network configuration.
+//
+//go:embed protocol.unit_testnet.yml
+var UnitTestNet []byte

pkg/config/config.go

@@ -137,6 +137,8 @@ func getEmbeddedConfig(configPath string) ([]byte, error) {
 		return config.MainNetNeoFS, nil
 	case fmt.Sprintf("%s/protocol.%s.yml", DefaultConfigPath, netmode.TestNetNeoFS):
 		return config.TestNetNeoFS, nil
+	case fmt.Sprintf("%s/protocol.%s.yml", DefaultConfigPath, netmode.UnitTestNet):
+		return config.UnitTestNet, nil
 	default:
 		return nil, fmt.Errorf("config '%s' doesn't exist and no matching embedded config was found", configPath)
 	}