remove debug prints. fix contract linking test condition

accounts/abi/bind/v2/contract_linking_test.go

@@ -7,7 +7,6 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"golang.org/x/exp/rand"
-	"runtime/debug"
 	"testing"
 )
 
@@ -107,14 +106,16 @@ func testLinkCase(t *testing.T, tcInput linkTestCaseInput) {
 		contractAddr := crypto.CreateAddress(testAddr, testAddrNonce)
 		testAddrNonce++
 
+		if len(deployer) >= 20 {
 			// assert that this contract only references libs that are known to be deployed or in the override set
-		for i := 0; i < len(deployer)/20; i += 20 {
+			for i := 0; i < len(deployer); i += 20 {
 				var dep common.Address
 				dep.SetBytes(deployer[i : i+20])
 				if _, ok := overridesAddrs[dep]; !ok {
 					t.Fatalf("reference to dependent contract that has not yet been deployed: %x\n", dep)
 				}
 			}
+		}
 		overridesAddrs[contractAddr] = struct{}{}
 		// we don't care about the txs themselves for the sake of the linking tests.  so we can return nil for them in the mock deployer
 		return contractAddr, nil, nil
@@ -145,7 +146,6 @@ func testLinkCase(t *testing.T, tcInput linkTestCaseInput) {
 	}
 
 	if len(res.Addrs) != len(tcInput.expectDeployed) {
-		debug.PrintStack()
 		t.Fatalf("got %d deployed contracts.  expected %d.\n", len(res.Addrs), len(tcInput.expectDeployed))
 	}
 	for contract, _ := range tcInput.expectDeployed {
@@ -166,7 +166,6 @@ func TestContractLinking(t *testing.T) {
 		},
 	})
 
-	fmt.Println("2")
 	testLinkCase(t, linkTestCaseInput{
 		map[rune][]rune{
 			'a': {'b', 'c', 'd', 'e'},

accounts/abi/bind/v2/lib.go

@@ -208,8 +208,6 @@ func LinkAndDeploy(deployParams DeploymentParams, deploy func(input, deployer []
 
 	deps := treeBuilder.BuildDepTrees()
 	for _, tr := range deps {
-		// TODO: instantiate deployer with its tree?
-
 		deployer := treeDeployer{
 			deploy:        deploy,
 			deployedAddrs: make(map[string]common.Address),