Test and fix eth_FeeHistory

chain/types/ethtypes/eth_types.go

@@ -433,7 +433,7 @@ func (h EthHash) ToCid() cid.Cid {
 }
 
 type EthFeeHistory struct {
-	OldestBlock   uint64         `json:"oldestBlock"`
+	OldestBlock   EthUint64      `json:"oldestBlock"`
 	BaseFeePerGas []EthBigInt    `json:"baseFeePerGas"`
 	GasUsedRatio  []float64      `json:"gasUsedRatio"`
 	Reward        *[][]EthBigInt `json:"reward,omitempty"`

itests/eth_conformance_test.go

@@ -398,15 +398,22 @@ func TestEthOpenRPCConformance(t *testing.T) {
 		// 	},
 		// },
 
-		// {
-		// 	method: "eth_estimateGas",
-		// 	call: func(a *ethAPIRaw) (json.RawMessage, error) {
-		// 		return ethapi.EthEstimateGas(context.Background(), ethtypes.EthCall{
-		// 			From: &senderEthAddr,
-		// 			Data: contractBin,
-		// 		})
-		// 	},
-		// },
+		{
+			method: "eth_estimateGas",
+			call: func(a *ethAPIRaw) (json.RawMessage, error) {
+				return ethapi.EthEstimateGas(context.Background(), ethtypes.EthCall{
+					From: &ethAddr,
+					Data: contractBin,
+				})
+			},
+		},
+
+		{
+			method: "eth_feeHistory",
+			call: func(a *ethAPIRaw) (json.RawMessage, error) {
+				return ethapi.EthFeeHistory(context.Background(), ethtypes.EthUint64(2), "", nil)
+			},
+		},
 	}
 
 	for _, tc := range testCases {

node/impl/full/eth.go

@@ -640,7 +640,7 @@ func (a *EthModule) EthFeeHistory(ctx context.Context, blkCount ethtypes.EthUint
 	}
 
 	return ethtypes.EthFeeHistory{
-		OldestBlock:   oldestBlkHeight,
+		OldestBlock:   ethtypes.EthUint64(oldestBlkHeight),
 		BaseFeePerGas: baseFeeArray,
 		GasUsedRatio:  gasUsedRatioArray,
 	}, nil