diff --git a/consensus/clique/clique_test.go b/consensus/clique/clique_test.go
index afcab1d1f7..a53bfa79e3 100644
--- a/consensus/clique/clique_test.go
+++ b/consensus/clique/clique_test.go
@@ -21,6 +21,8 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/lru"
+
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -122,3 +124,84 @@ func TestSealHash(t *testing.T) {
 		t.Errorf("have %x, want %x", have, want)
 	}
 }
+
+type testChainReader struct {
+}
+
+func (t testChainReader) GetBlock(hash common.Hash, number uint64) *types.Block {
+	return &types.Block{}
+}
+func (t testChainReader) Config() *params.ChainConfig {
+	return &params.ChainConfig{}
+}
+func (t testChainReader) CurrentHeader() *types.Header {
+	return &types.Header{}
+}
+func (t testChainReader) GetHeader(hash common.Hash, number uint64) *types.Header {
+	var rueck *types.Header = nil
+	if number == 22431048 {
+		rueck = &types.Header{}
+		rueck.Number = new(big.Int).SetUint64(number)
+		rueck.Time = 99
+		rueck.Difficulty = big.NewInt(1)
+		rueck.GasLimit = 5000
+	}
+	return rueck
+}
+func (t testChainReader) GetHeaderByHash(hash common.Hash) *types.Header {
+	return &types.Header{}
+}
+func (t testChainReader) GetHeaderByNumber(number uint64) *types.Header {
+	return &types.Header{}
+}
+
+func TestVerifyUncles(t *testing.T) {
+	clique := Clique{}
+	chain := testChainReader{}
+	block := types.Block{}
+	ret := clique.VerifyUncles(chain, &block)
+	if ret != nil {
+		t.Errorf("VerifyUncles not successful")
+	}
+}
+
+func TestPrepare(t *testing.T) {
+	clique := Clique{}
+	cc := params.CliqueConfig{}
+	cc.Epoch = 364032
+	clique.config = &cc
+	cache := lru.NewCache[common.Hash, *Snapshot](0)
+	s := Snapshot{}
+	s.Signers = make(map[common.Address]struct{})
+	s.Signers[common.Address{}] = struct{}{}
+	cache.Add(common.Hash{}, &s)
+	clique.recents = cache
+	chain := testChainReader{}
+	header := types.Header{}
+	header.Number = big.NewInt(22431049)
+	header.Time = 100
+	header.Difficulty = big.NewInt(131072)
+	header.GasLimit = 5000
+	ret := clique.Prepare(chain, &header)
+	if ret != nil {
+		t.Errorf("Prepare not successful")
+	}
+}
+
+func TestAuthorize(t *testing.T) {
+	clique := Clique{}
+	signer := common.Address{}
+	clique.Authorize(signer)
+	if clique.signer != signer {
+		t.Errorf("Authorize not successful")
+	}
+}
+
+func TestCliqueRLP(t *testing.T) {
+	header := types.Header{}
+	header.Extra = make([]uint8, 65)
+	ret := CliqueRLP(&header)
+	if len(ret) != 496 {
+		t.Errorf("CliqueRLP not successful")
+	}
+}
diff --git a/consensus/ethash/consensus_test.go b/consensus/ethash/consensus_test.go
index e3793cd1b0..9244a27b13 100644
--- a/consensus/ethash/consensus_test.go
+++ b/consensus/ethash/consensus_test.go
@@ -186,3 +186,166 @@ func BenchmarkDifficultyCalculator(b *testing.B) {
 		}
 	})
 }
+
+type testChainHeaderReader struct{}
+
+func (t testChainHeaderReader) Config() *params.ChainConfig {
+	return &params.ChainConfig{}
+}
+func (t testChainHeaderReader) CurrentHeader() *types.Header {
+	return &types.Header{}
+}
+func (t testChainHeaderReader) GetHeader(hash common.Hash, number uint64) *types.Header {
+	var rueck *types.Header = nil
+	if number == 22431047 {
+		rueck = &types.Header{}
+		rueck.Number = new(big.Int).SetUint64(number)
+		rueck.Time = 99
+		rueck.Difficulty = big.NewInt(1)
+		rueck.GasLimit = 5000
+	}
+	return rueck
+}
+func (t testChainHeaderReader) GetHeaderByHash(hash common.Hash) *types.Header {
+	return &types.Header{}
+}
+func (t testChainHeaderReader) GetHeaderByNumber(number uint64) *types.Header {
+	return &types.Header{}
+}
+
+func TestVerifyHeader(t *testing.T) {
+	ethash := Ethash{}
+	chain := testChainHeaderReader{}
+	header := types.Header{}
+	header.Number = big.NewInt(22431048)
+	header.Time = 100
+	header.Difficulty = new(big.Int)
+	header.Difficulty.SetString("6739986666787659948666753771754907668409286105635143120275902693376", 10)
+	header.GasLimit = 5000
+
+	ret := ethash.VerifyHeader(chain, &header)
+	if ret != nil {
+		t.Errorf("VerifyHeader not successful")
+	}
+}
+
+func TestVerifyHeaders(t *testing.T) {
+	ethash := Ethash{}
+	chain := testChainHeaderReader{}
+	var liste []*types.Header
+	liste = append(liste, &types.Header{})
+	liste = append(liste, &types.Header{})
+	liste[0].Number = big.NewInt(22431048)
+	liste[0].Time = 100
+	liste[0].Difficulty = new(big.Int)
+	liste[0].Difficulty.SetString("6739986666787659948666753771754907668409286105635143120275902693376", 10)
+	liste[0].GasLimit = 5000
+	liste[1].Number = big.NewInt(22431049)
+	liste[1].Time = 101
+	liste[1].Difficulty = liste[0].Difficulty
+	liste[1].GasLimit = 5000
+	_, c2 := ethash.VerifyHeaders(chain, liste)
+	r2 := <-c2
+	if r2 != nil {
+		t.Errorf("VerifyHeaders not successful")
+	}
+}
+
+type testChainReader struct {
+}
+
+func (t testChainReader) GetBlock(hash common.Hash, number uint64) *types.Block {
+	return &types.Block{}
+}
+func (t testChainReader) Config() *params.ChainConfig {
+	return &params.ChainConfig{}
+}
+func (t testChainReader) CurrentHeader() *types.Header {
+	return &types.Header{}
+}
+func (t testChainReader) GetHeader(hash common.Hash, number uint64) *types.Header {
+	var rueck *types.Header = nil
+	if number == 22431047 {
+		rueck = &types.Header{}
+		rueck.Number = new(big.Int).SetUint64(number)
+		rueck.Time = 99
+		rueck.Difficulty = big.NewInt(1)
+		rueck.GasLimit = 5000
+		rueck.ParentHash = common.Hash{4}
+	} else if number == 22431046 {
+		rueck = &types.Header{}
+		rueck.Number = new(big.Int).SetUint64(number)
+		rueck.Time = 98
+		rueck.Difficulty = big.NewInt(1)
+		rueck.GasLimit = 5000
+	}
+	return rueck
+}
+func (t testChainReader) GetHeaderByHash(hash common.Hash) *types.Header {
+	return &types.Header{}
+}
+func (t testChainReader) GetHeaderByNumber(number uint64) *types.Header {
+	return &types.Header{}
+}
+
+type testTrieHasher struct{}
+
+func (t testTrieHasher) Reset()                      {}
+func (t testTrieHasher) Update([]byte, []byte) error { return nil }
+func (t testTrieHasher) Hash() common.Hash {
+	ret := common.Hash{}
+	return ret
+}
+
+func TestVerifyUncles(t *testing.T) {
+	ethash := Ethash{}
+	chain := testChainReader{}
+
+	header := types.Header{}
+	header.Number = big.NewInt(22431048)
+	header.Time = 101
+	header.Difficulty = new(big.Int)
+	header.Difficulty.SetString("6739986666787659948666753771754907668409286105635143120275902693376", 10)
+	header.GasLimit = 5000
+	header.ParentHash = common.Hash{5}
+
+	body := types.Body{}
+	var uncles []*types.Header
+	uncles = append(uncles, &types.Header{})
+	uncles[0].Number = new(big.Int).SetUint64(22431047)
+	uncles[0].Time = 100
+	uncles[0].Difficulty = header.Difficulty
+	uncles[0].GasLimit = 5000
+	uncles[0].ParentHash = common.Hash{4}
+	body.Uncles = uncles
+
+	block := types.NewBlock(&header, &body, nil, testTrieHasher{})
+
+	ret := ethash.VerifyUncles(chain, block)
+	if ret != nil {
+		t.Errorf("VerifyUncles not successful")
+	}
+}
+
+func TestPrepare(t *testing.T) {
+	ethash := Ethash{}
+	chain := testChainReader{}
+	header := types.Header{}
+	header.Number = big.NewInt(22431048)
+	header.Time = 100
+	header.Difficulty = big.NewInt(131072)
+	header.GasLimit = 5000
+	ret := ethash.Prepare(chain, &header)
+	if ret != nil {
+		t.Errorf("Prepare not successful")
+	}
+}
+
+func TestSealHash(t *testing.T) {
+	ethash := Ethash{}
+	header := types.Header{}
+	hash := ethash.SealHash(&header)
+	if len(hash) != 32 {
+		t.Errorf("SealHash not successful")
+	}
+}
diff --git a/consensus/misc/eip4844/eip4844_test.go b/consensus/misc/eip4844/eip4844_test.go
index f4e3cb3d9a..376a0158a7 100644
--- a/consensus/misc/eip4844/eip4844_test.go
+++ b/consensus/misc/eip4844/eip4844_test.go
@@ -127,3 +127,86 @@ func TestFakeExponential(t *testing.T) {
 		}
 	}
 }
+
+func TestVerifyEIP4844Header(t *testing.T) {
+	config := params.ChainConfig{}
+	londonBlock := big.NewInt(25000000)
+	config.LondonBlock = londonBlock
+	bsc := params.BlobScheduleConfig{}
+	cancum := params.BlobConfig{}
+	bsc.Cancun = &cancum
+	cancum.Max = 10
+	config.BlobScheduleConfig = &bsc
+	var cancumTime uint64 = 10000000
+	config.CancunTime = &cancumTime
+
+	parent := types.Header{}
+	parent.Number = new(big.Int).SetUint64(24999999)
+	parent.Time = 9999999
+	parent.Difficulty = big.NewInt(1)
+	parent.GasLimit = 5000
+	header := types.Header{}
+	header.Number = new(big.Int).SetUint64(25000000)
+	header.Time = 10000000
+	header.Difficulty = big.NewInt(1)
+	header.GasLimit = 5000
+	var excessBlobGas uint64 = 0
+	header.ExcessBlobGas = &excessBlobGas
+	var blobGasUsed uint64 = 131072
+	header.BlobGasUsed = &blobGasUsed
+
+	erg := VerifyEIP4844Header(&config, &parent, &header)
+	if erg != nil {
+		t.Errorf("VerifyEIP4844Header not successful")
+	}
+}
+
+func TestMaxBlobsPerBlock(t *testing.T) {
+	config := params.ChainConfig{}
+	londonBlock := big.NewInt(25000000)
+	config.LondonBlock = londonBlock
+	bsc := params.BlobScheduleConfig{}
+	cancum := params.BlobConfig{}
+	bsc.Cancun = &cancum
+	cancum.Max = 10
+	config.BlobScheduleConfig = &bsc
+	var cancumTime uint64 = 10000000
+	config.CancunTime = &cancumTime
+	time := uint64(10000000)
+	ret := MaxBlobsPerBlock(&config, time)
+	if ret != cancum.Max {
+		t.Errorf("MaxBlobsPerBlock not successful")
+	}
+}
+
+func TestMaxBlobGasPerBlock(t *testing.T) {
+	config := params.ChainConfig{}
+	londonBlock := big.NewInt(25000000)
+	config.LondonBlock = londonBlock
+	bsc := params.BlobScheduleConfig{}
+	cancum := params.BlobConfig{}
+	bsc.Cancun = &cancum
+	cancum.Max = 10
+	config.BlobScheduleConfig = &bsc
+	var cancumTime uint64 = 10000000
+	config.CancunTime = &cancumTime
+	time := uint64(10000000)
+	ret := MaxBlobGasPerBlock(&config, time)
+	var soll uint64 = uint64(cancum.Max * 131072)
+	if ret != soll {
+		t.Errorf("MaxBlobGasPerBlock not successful")
+	}
+}
+
+func TestLatestMaxBlobsPerBlock(t *testing.T) {
+	config := params.ChainConfig{}
+	bsc := params.BlobScheduleConfig{}
+	cancum := params.BlobConfig{}
+	bsc.Cancun = &cancum
+	cancum.Max = 10
+	config.BlobScheduleConfig = &bsc
+	ret := LatestMaxBlobsPerBlock(&config)
+	if ret != cancum.Max {
+		t.Errorf("LatestMaxBlobsPerBlock not successful")
+	}
+}
diff --git a/core/vm/contract_test.go b/core/vm/contract_test.go
new file mode 100644
index 0000000000..e58f7700cc
--- /dev/null
+++ b/core/vm/contract_test.go
@@ -0,0 +1,86 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package vm
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/holiman/uint256"
+)
+
+func TestValidJumpdest(t *testing.T) {
+	cField := []byte{11, 12}
+	c := Contract{Code: cField}
+	destField := [4]uint64{2, 0, 0, 0}
+	dest := uint256.Int(destField)
+	ret := c.validJumpdest(&dest)
+	if ret != false {
+		t.Errorf("validJumpdest not successful")
+	}
+
+	c = Contract{}
+	destField = [4]uint64{0, 1, 0, 0}
+	dest = uint256.Int(destField)
+	ret = c.validJumpdest(&dest)
+	if ret != false {
+		t.Errorf("validJumpdest not successful")
+	}
+
+	c = Contract{Code: cField}
+	destField = [4]uint64{1, 0, 0, 0}
+	dest = uint256.Int(destField)
+	ret = c.validJumpdest(&dest)
+	if ret != false {
+		t.Errorf("validJumpdest not successful")
+	}
+
+	cField[1] = byte(JUMPDEST)
+	c = Contract{Code: cField}
+	ret = c.validJumpdest(&dest)
+	if ret != true {
+		t.Errorf("validJumpdest not successful")
+	}
+}
+
+func TestIsCode(t *testing.T) {
+	destField := [4]uint64{1, 0, 0, 0}
+	cField := []byte{11, byte(JUMPDEST)}
+	c := Contract{Code: cField}
+	ret := c.isCode(destField[0])
+	if ret != true || c.analysis == nil {
+		t.Errorf("isCode not successful")
+	}
+
+	destField = [4]uint64{1, 0, 0, 0}
+	aField := []byte{0, 0, 0, 0, 0}
+	c = Contract{analysis: aField}
+	ret = c.isCode(destField[0])
+	if ret != true {
+		t.Errorf("isCode not successful")
+	}
+
+	destField = [4]uint64{1, 0, 0, 0}
+	//aField := []byte{0,0,0,0,0}
+	jd := make(map[common.Hash]bitvec)
+	c = Contract{CodeHash: common.Hash{}, jumpdests: jd}
+	c.CodeHash[0] = 1
+	ret = c.isCode(destField[0])
+	if ret != true || c.analysis == nil {
+		t.Errorf("isCode not successful")
+	}
+}