Fix block_producer naming to match attester

eth2/block_producer/src/test_utils/simulated_beacon_node.rs

@@ -0,0 +1,65 @@
+use crate::traits::{BeaconNode, BeaconNodeError, PublishOutcome};
+use std::sync::RwLock;
+use types::{BeaconBlock, PublicKey, Signature};
+
+type NonceResult = Result<u64, BeaconNodeError>;
+type ProduceResult = Result<Option<BeaconBlock>, BeaconNodeError>;
+type PublishResult = Result<PublishOutcome, BeaconNodeError>;
+
+/// A test-only struct used to simulate a Beacon Node.
+#[derive(Default)]
+pub struct SimulatedBeaconNode {
+    pub nonce_input: RwLock<Option<PublicKey>>,
+    pub nonce_result: RwLock<Option<NonceResult>>,
+
+    pub produce_input: RwLock<Option<(u64, Signature)>>,
+    pub produce_result: RwLock<Option<ProduceResult>>,
+
+    pub publish_input: RwLock<Option<BeaconBlock>>,
+    pub publish_result: RwLock<Option<PublishResult>>,
+}
+
+impl SimulatedBeaconNode {
+    /// Set the result to be returned when `produce_beacon_block` is called.
+    pub fn set_next_nonce_result(&self, result: NonceResult) {
+        *self.nonce_result.write().unwrap() = Some(result);
+    }
+
+    /// Set the result to be returned when `produce_beacon_block` is called.
+    pub fn set_next_produce_result(&self, result: ProduceResult) {
+        *self.produce_result.write().unwrap() = Some(result);
+    }
+
+    /// Set the result to be returned when `publish_beacon_block` is called.
+    pub fn set_next_publish_result(&self, result: PublishResult) {
+        *self.publish_result.write().unwrap() = Some(result);
+    }
+}
+
+impl BeaconNode for SimulatedBeaconNode {
+    fn proposer_nonce(&self, pubkey: &PublicKey) -> NonceResult {
+        *self.nonce_input.write().unwrap() = Some(pubkey.clone());
+        match *self.nonce_result.read().unwrap() {
+            Some(ref r) => r.clone(),
+            None => panic!("SimulatedBeaconNode: nonce_result == None"),
+        }
+    }
+
+    /// Returns the value specified by the `set_next_produce_result`.
+    fn produce_beacon_block(&self, slot: u64, randao_reveal: &Signature) -> ProduceResult {
+        *self.produce_input.write().unwrap() = Some((slot, randao_reveal.clone()));
+        match *self.produce_result.read().unwrap() {
+            Some(ref r) => r.clone(),
+            None => panic!("SimulatedBeaconNode: produce_result == None"),
+        }
+    }
+
+    /// Returns the value specified by the `set_next_publish_result`.
+    fn publish_beacon_block(&self, block: BeaconBlock) -> PublishResult {
+        *self.publish_input.write().unwrap() = Some(block);
+        match *self.publish_result.read().unwrap() {
+            Some(ref r) => r.clone(),
+            None => panic!("SimulatedBeaconNode: publish_result == None"),
+        }
+    }
+}