Fix bug in --builder-proposals (#5151)

* Fix bug in `--builder-proposals`

* Add tests

* More sensible test order

* Fix duplicate builder-boost test case

* Cargo fmt and rename

validator_client/src/http_api/tests.rs

@@ -1177,6 +1177,58 @@ async fn validator_derived_builder_boost_factor_with_process_defaults() {
         .await;
 }
 
+#[tokio::test]
+async fn validator_builder_boost_factor_global_builder_proposals_true() {
+    let config = Config {
+        builder_proposals: true,
+        prefer_builder_proposals: false,
+        builder_boost_factor: None,
+        ..Config::default()
+    };
+    ApiTester::new_with_config(config)
+        .await
+        .assert_default_builder_boost_factor(None);
+}
+
+#[tokio::test]
+async fn validator_builder_boost_factor_global_builder_proposals_false() {
+    let config = Config {
+        builder_proposals: false,
+        prefer_builder_proposals: false,
+        builder_boost_factor: None,
+        ..Config::default()
+    };
+    ApiTester::new_with_config(config)
+        .await
+        .assert_default_builder_boost_factor(Some(0));
+}
+
+#[tokio::test]
+async fn validator_builder_boost_factor_global_prefer_builder_proposals_true() {
+    let config = Config {
+        builder_proposals: true,
+        prefer_builder_proposals: true,
+        builder_boost_factor: None,
+        ..Config::default()
+    };
+    ApiTester::new_with_config(config)
+        .await
+        .assert_default_builder_boost_factor(Some(u64::MAX));
+}
+
+#[tokio::test]
+async fn validator_builder_boost_factor_global_prefer_builder_proposals_true_override() {
+    let config = Config {
+        builder_proposals: false,
+        prefer_builder_proposals: true,
+        builder_boost_factor: None,
+        ..Config::default()
+    };
+    ApiTester::new_with_config(config)
+        .await
+        .assert_default_builder_boost_factor(Some(u64::MAX));
+}
+
 #[tokio::test]
 async fn prefer_builder_proposals_validator() {
     ApiTester::new()

validator_client/src/validator_store.rs

@@ -572,7 +572,7 @@ impl<T: SlotClock + 'static, E: EthSpec> ValidatorStore<T, E> {
             return Some(u64::MAX);
         }
         self.builder_boost_factor.or({
-            if self.builder_proposals {
+            if !self.builder_proposals {
                 Some(0)
             } else {
                 None