Add move tests, "builder-proposals" takes bool

validator_manager/src/validators/create_validators.rs

@@ -158,7 +158,9 @@ pub fn cli_app<'a, 'b>() -> App<'a, 'b> {
                     "When provided, all created validators will attempt to create \
                     blocks via builder rather than the local EL.",
                 )
-                .required(false),
+                .required(false)
+                .possible_values(&["true", "false"])
+                .takes_value(true),
         )
         .arg(
             Arg::with_name(BEACON_NODE_FLAG)
@@ -188,7 +190,7 @@ pub struct CreateConfig {
     pub disable_deposits: bool,
     pub specify_voting_keystore_password: bool,
     pub eth1_withdrawal_address: Option<Address>,
-    pub builder_proposals: bool,
+    pub builder_proposals: Option<bool>,
     pub fee_recipient: Option<Address>,
     pub gas_limit: Option<u64>,
     pub bn_url: Option<SensitiveUrl>,
@@ -211,7 +213,7 @@ impl CreateConfig {
                 matches,
                 ETH1_WITHDRAWAL_ADDRESS_FLAG,
             )?,
-            builder_proposals: matches.is_present(BUILDER_PROPOSALS_FLAG),
+            builder_proposals: clap_utils::parse_optional(matches, BUILDER_PROPOSALS_FLAG)?,
             fee_recipient: clap_utils::parse_optional(matches, FEE_RECIPIENT_FLAG)?,
             gas_limit: clap_utils::parse_optional(matches, GAS_LIMIT_FLAG)?,
             bn_url: clap_utils::parse_optional(matches, BEACON_NODE_FLAG)?,
@@ -433,8 +435,11 @@ impl ValidatorsAndDeposits {
                 slashing_protection: None,
                 fee_recipient,
                 gas_limit,
-                builder_proposals: Some(builder_proposals),
-                enabled: Some(true),
+                builder_proposals,
+                // Allow the VC to choose a default "enabled" state. Since "enabled" is not part of
+                // the standard API, leaving this as `None` means we are not forced to use the
+                // non-standard API.
+                enabled: None,
             };
 
             eprintln!(