get spec tests working and fix json serialization

consensus/types/src/blobs_sidecar.rs

@@ -12,8 +12,9 @@ use tree_hash_derive::TreeHash;
 pub struct BlobsSidecar<T: EthSpec> {
     pub beacon_block_root: Hash256,
     pub beacon_block_slot: Slot,
+    #[serde(with = "ssz_types::serde_utils::list_of_hex_fixed_vec")]
     pub blobs: VariableList<Blob<T>, T::MaxBlobsPerBlock>,
-    pub kzg_aggregate_proof: KzgProof,
+    pub kzg_aggregated_proof: KzgProof,
 }
 
 impl<T: EthSpec> SignedRoot for BlobsSidecar<T> {}

consensus/types/src/eth_spec.rs

@@ -254,11 +254,6 @@ pub trait EthSpec: 'static + Default + Sync + Send + Clone + Debug + PartialEq +
         Self::MaxBlobsPerBlock::to_usize()
     }
 
-    /// FIXME: why is this called chunks_per_blob??
-    fn chunks_per_blob() -> usize {
-        Self::FieldElementsPerBlob::to_usize()
-    }
-
     /// Returns the `BYTES_PER_BLOB` constant for the specification.
     fn bytes_per_blob() -> usize {
         Self::BytesPerBlob::to_usize()
@@ -339,6 +334,7 @@ impl EthSpec for MinimalEthSpec {
     type SlotsPerEth1VotingPeriod = U32; // 4 epochs * 8 slots per epoch
     type MaxWithdrawalsPerPayload = U4;
     type FieldElementsPerBlob = U4; //FIXME(sean) this is spec'd out currently but will likely change
+    type BytesPerBlob = U128; //FIXME(sean) this is spec'd out currently but will likely change
 
     params_from_eth_spec!(MainnetEthSpec {
         JustificationBitsLength,
@@ -361,8 +357,7 @@ impl EthSpec for MinimalEthSpec {
         MaxExtraDataBytes,
         MaxBlsToExecutionChanges,
         MaxBlobsPerBlock,
-        BytesPerFieldElement,
-        BytesPerBlob
+        BytesPerFieldElement
     });
 
     fn default_spec() -> ChainSpec {

consensus/types/src/lib.rs

@@ -170,8 +170,9 @@ pub use crate::signed_beacon_block::{
     SignedBlindedBeaconBlock,
 };
 pub use crate::signed_beacon_block_header::SignedBeaconBlockHeader;
-pub use crate::signed_bls_to_execution_change::SignedBlsToExecutionChange;
 pub use crate::signed_block_and_blobs::SignedBeaconBlockAndBlobsSidecar;
+pub use crate::signed_block_and_blobs::SignedBeaconBlockAndBlobsSidecarDecode;
+pub use crate::signed_bls_to_execution_change::SignedBlsToExecutionChange;
 pub use crate::signed_contribution_and_proof::SignedContributionAndProof;
 pub use crate::signed_voluntary_exit::SignedVoluntaryExit;
 pub use crate::signing_data::{SignedRoot, SigningData};