diff --git a/tests/block_test.go b/tests/block_test.go
index 8b1f76a92..79e3335b1 100644
--- a/tests/block_test.go
+++ b/tests/block_test.go
@@ -44,6 +44,10 @@ func TestBcForkBlockTests(t *testing.T) {
 	runBlockTestsInFile("files/BlockTests/bcForkBlockTest.json", []string{}, t)
 }
 
+func TestBcTotalDifficulty(t *testing.T) {
+	runBlockTestsInFile("files/BlockTests/bcTotalDifficultyTest.json", []string{}, t)
+}
+
 func runBlockTestsInFile(filepath string, snafus []string, t *testing.T) {
 	bt, err := LoadBlockTests(filepath)
 	if err != nil {
diff --git a/tests/transaction_test.go b/tests/transaction_test.go
index 60296f679..7ae1c8788 100644
--- a/tests/transaction_test.go
+++ b/tests/transaction_test.go
@@ -9,9 +9,7 @@ func TestTransactions(t *testing.T) {
 
 	// TODO: all these tests should work! remove them from the array when they work
 	snafus := []string{
-		"TransactionWithHihghNonce", // fails due to testing upper bound of 256 bit nonce
-		"TransactionWithSvalueHigh", // fails due to C++ wrong ECDSA r,s ranges. see https://github.com/ethereum/yellowpaper/pull/112
-		"TransactionWithSvalue0",    // Invalid, 0 < s according to YP eq 205. probably typo/copy-paste error
+		"TransactionWithHihghNonce256", // fails due to testing upper bound of 256 bit nonce
 	}
 
 	for _, name := range snafus {
@@ -36,9 +34,7 @@ func TestWrongRLPTransactions(t *testing.T) {
 	}
 }
 
-//Not working until it's fields are in HEX
 func Test10MBtx(t *testing.T) {
-	t.Skip("Skipped in lieu of HEX encoding fix in this file.")
 	notWorking := make(map[string]bool, 100)
 	var err error
 	err = RunTransactionTests("./files/TransactionTests/tt10mbDataField.json",
diff --git a/tests/transaction_test_util.go b/tests/transaction_test_util.go
index 0f5790642..82038c3e8 100644
--- a/tests/transaction_test_util.go
+++ b/tests/transaction_test_util.go
@@ -58,7 +58,7 @@ func runTest(txTest TransactionTest) (err error) {
 			return nil
 		} else {
 			// RLP decoding failed but is expected to succeed (test FAIL)
-			return errors.New("RLP decoding failed when expected to succeed")
+			return fmt.Errorf("RLP decoding failed when expected to succeed: ", err)
 		}
 	}