ethclient: move test

ethclient/ethclient_test.go

@@ -27,6 +27,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
@@ -772,3 +773,37 @@ func sendTransaction(ec *Client) error {
 	}
 	return ec.SendTransaction(context.Background(), tx)
 }
+
+// Here we show how to get the error message of reverted contract call.
+func ExampleRevertErrorData() {
+	// First create an ethclient.Client instance.
+	ctx := context.Background()
+	ec, _ := DialContext(ctx, exampleNode.HTTPEndpoint())
+
+	// Call the contract.
+	// Note we expect the call to return an error.
+	contract := common.HexToAddress("290f1b36649a61e369c6276f6d29463335b4400c")
+	call := ethereum.CallMsg{To: &contract, Gas: 30000}
+	result, err := ec.CallContract(ctx, call, nil)
+	if len(result) > 0 {
+		panic("got result")
+	}
+	if err == nil {
+		panic("call did not return error")
+	}
+
+	// Extract the low-level revert data from the error.
+	revertData, ok := RevertErrorData(err)
+	if !ok {
+		panic("unpacking revert failed")
+	}
+	fmt.Printf("revert: %x\n", revertData)
+
+	// Parse the revert data to obtain the error message.
+	message, err := abi.UnpackRevert(revertData)
+	fmt.Println("message:", message)
+
+	// Output:
+	// revert: 08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000a75736572206572726f72
+	// message: user error
+}

ethclient/example_test.go

@@ -17,12 +17,6 @@
 package ethclient
 
 import (
-	"context"
-	"fmt"
-
-	"github.com/ethereum/go-ethereum"
-	"github.com/ethereum/go-ethereum/accounts/abi"
-	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/node"
 )
 
@@ -39,37 +33,3 @@ func init() {
 	}
 	exampleNode = n
 }
-
-// Here we show how to get the error message of reverted contract call.
-func ExampleRevertErrorData() {
-	// First create an ethclient.Client instance.
-	ctx := context.Background()
-	ec, _ := DialContext(ctx, exampleNode.HTTPEndpoint())
-
-	// Call the contract.
-	// Note we expect the call to return an error.
-	contract := common.HexToAddress("290f1b36649a61e369c6276f6d29463335b4400c")
-	call := ethereum.CallMsg{To: &contract, Gas: 30000}
-	result, err := ec.CallContract(ctx, call, nil)
-	if len(result) > 0 {
-		panic("got result")
-	}
-	if err == nil {
-		panic("call did not return error")
-	}
-
-	// Extract the low-level revert data from the error.
-	revertData, ok := RevertErrorData(err)
-	if !ok {
-		panic("unpacking revert failed")
-	}
-	fmt.Printf("revert: %x\n", revertData)
-
-	// Parse the revert data to obtain the error message.
-	message, err := abi.UnpackRevert(revertData)
-	fmt.Println("message:", message)
-
-	// Output:
-	// revert: 08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000a75736572206572726f72
-	// message: user error
-}