diff --git a/prover/proof_producer/dummty_producer_test.go b/prover/proof_producer/dummty_producer_test.go
new file mode 100644
index 000000000..10069f89a
--- /dev/null
+++ b/prover/proof_producer/dummty_producer_test.go
@@ -0,0 +1,53 @@
+package producer
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/stretchr/testify/require"
+	"github.com/taikoxyz/taiko-client/bindings"
+)
+
+func TestDummyProducerRequestProof(t *testing.T) {
+	producer := &DummyProofProducer{}
+
+	resCh := make(chan *ProofWithHeader, 1)
+
+	var tier uint16 = 1024
+
+	blockID := common.Big32
+	header := &types.Header{
+		ParentHash:  randHash(),
+		UncleHash:   randHash(),
+		Coinbase:    common.BytesToAddress(randHash().Bytes()),
+		Root:        randHash(),
+		TxHash:      randHash(),
+		ReceiptHash: randHash(),
+		Difficulty:  common.Big0,
+		Number:      common.Big256,
+		GasLimit:    1024,
+		GasUsed:     1024,
+		Time:        uint64(time.Now().Unix()),
+		Extra:       randHash().Bytes(),
+		MixDigest:   randHash(),
+		Nonce:       types.BlockNonce{},
+	}
+	require.Nil(t, producer.RequestProof(
+		context.Background(),
+		&ProofRequestOptions{},
+		blockID,
+		&bindings.TaikoDataBlockMetadata{},
+		header,
+		tier,
+		resCh,
+	))
+
+	res := <-resCh
+	require.Equal(t, res.BlockID, blockID)
+	require.Equal(t, res.Header, header)
+	require.Equal(t, tier, res.Tier)
+	require.NotEmpty(t, res.Proof)
+}
diff --git a/prover/proof_producer/guardian_producer_test.go b/prover/proof_producer/guardian_producer_test.go
new file mode 100644
index 000000000..e7d541fcb
--- /dev/null
+++ b/prover/proof_producer/guardian_producer_test.go
@@ -0,0 +1,51 @@
+package producer
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/stretchr/testify/require"
+	"github.com/taikoxyz/taiko-client/bindings"
+	"github.com/taikoxyz/taiko-client/bindings/encoding"
+)
+
+func TestGuardianProducerRequestProof(t *testing.T) {
+	producer := &GuardianProofProducer{}
+
+	resCh := make(chan *ProofWithHeader, 1)
+
+	blockID := common.Big32
+	header := &types.Header{
+		ParentHash:  randHash(),
+		UncleHash:   randHash(),
+		Coinbase:    common.BytesToAddress(randHash().Bytes()),
+		Root:        randHash(),
+		TxHash:      randHash(),
+		ReceiptHash: randHash(),
+		Difficulty:  common.Big0,
+		Number:      common.Big256,
+		GasLimit:    1024,
+		GasUsed:     1024,
+		Time:        uint64(time.Now().Unix()),
+		Extra:       randHash().Bytes(),
+		MixDigest:   randHash(),
+		Nonce:       types.BlockNonce{},
+	}
+	require.Nil(t, producer.RequestProof(
+		context.Background(),
+		&ProofRequestOptions{},
+		blockID,
+		&bindings.TaikoDataBlockMetadata{},
+		header,
+		resCh,
+	))
+
+	res := <-resCh
+	require.Equal(t, res.BlockID, blockID)
+	require.Equal(t, res.Header, header)
+	require.Equal(t, res.Tier, encoding.TierGuardianID)
+	require.NotEmpty(t, res.Proof)
+}
diff --git a/prover/proof_producer/optimistic_producer_test.go b/prover/proof_producer/optimistic_producer_test.go
index 8a4663c90..024358fd0 100644
--- a/prover/proof_producer/optimistic_producer_test.go
+++ b/prover/proof_producer/optimistic_producer_test.go
@@ -11,10 +11,11 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/stretchr/testify/require"
 	"github.com/taikoxyz/taiko-client/bindings"
+	"github.com/taikoxyz/taiko-client/bindings/encoding"
 )
 
-func TestRequestProof(t *testing.T) {
-	optimisticProofProducer := &OptimisticProofProducer{}
+func TestOptimisticRequestProof(t *testing.T) {
+	producer := &OptimisticProofProducer{}
 
 	resCh := make(chan *ProofWithHeader, 1)
 
@@ -22,7 +23,7 @@ func TestRequestProof(t *testing.T) {
 	header := &types.Header{
 		ParentHash:  randHash(),
 		UncleHash:   randHash(),
-		Coinbase:    common.HexToAddress("0x0000777735367b36bC9B61C50022d9D0700dB4Ec"),
+		Coinbase:    common.BytesToAddress(randHash().Bytes()),
 		Root:        randHash(),
 		TxHash:      randHash(),
 		ReceiptHash: randHash(),
@@ -35,7 +36,7 @@ func TestRequestProof(t *testing.T) {
 		MixDigest:   randHash(),
 		Nonce:       types.BlockNonce{},
 	}
-	require.Nil(t, optimisticProofProducer.RequestProof(
+	require.Nil(t, producer.RequestProof(
 		context.Background(),
 		&ProofRequestOptions{},
 		blockID,
@@ -47,6 +48,7 @@ func TestRequestProof(t *testing.T) {
 	res := <-resCh
 	require.Equal(t, res.BlockID, blockID)
 	require.Equal(t, res.Header, header)
+	require.Equal(t, res.Tier, encoding.TierOptimisticID)
 	require.NotEmpty(t, res.Proof)
 }
 
diff --git a/prover/proof_producer/sgx_producer_test.go b/prover/proof_producer/sgx_producer_test.go
new file mode 100644
index 000000000..14adcf36e
--- /dev/null
+++ b/prover/proof_producer/sgx_producer_test.go
@@ -0,0 +1,51 @@
+package producer
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/stretchr/testify/require"
+	"github.com/taikoxyz/taiko-client/bindings"
+	"github.com/taikoxyz/taiko-client/bindings/encoding"
+)
+
+func TestSGXProducerRequestProof(t *testing.T) {
+	producer := &SGXProofProducer{}
+
+	resCh := make(chan *ProofWithHeader, 1)
+
+	blockID := common.Big32
+	header := &types.Header{
+		ParentHash:  randHash(),
+		UncleHash:   randHash(),
+		Coinbase:    common.BytesToAddress(randHash().Bytes()),
+		Root:        randHash(),
+		TxHash:      randHash(),
+		ReceiptHash: randHash(),
+		Difficulty:  common.Big0,
+		Number:      common.Big256,
+		GasLimit:    1024,
+		GasUsed:     1024,
+		Time:        uint64(time.Now().Unix()),
+		Extra:       randHash().Bytes(),
+		MixDigest:   randHash(),
+		Nonce:       types.BlockNonce{},
+	}
+	require.Nil(t, producer.RequestProof(
+		context.Background(),
+		&ProofRequestOptions{},
+		blockID,
+		&bindings.TaikoDataBlockMetadata{},
+		header,
+		resCh,
+	))
+
+	res := <-resCh
+	require.Equal(t, res.BlockID, blockID)
+	require.Equal(t, res.Header, header)
+	require.Equal(t, res.Tier, encoding.TierSgxID)
+	require.NotEmpty(t, res.Proof)
+}
diff --git a/prover/proof_producer/zkevm_rpcd_producer_test.go b/prover/proof_producer/zkevm_rpcd_producer_test.go
index 87ae7af1d..2f0bcbba0 100644
--- a/prover/proof_producer/zkevm_rpcd_producer_test.go
+++ b/prover/proof_producer/zkevm_rpcd_producer_test.go
@@ -21,6 +21,7 @@ func TestNewZkevmRpcdProducer(t *testing.T) {
 		&bindings.TaikoDataConfig{},
 	)
 	require.Nil(t, err)
+	require.False(t, dummyZkevmRpcdProducer.Cancellable())
 
 	dummyZkevmRpcdProducer.CustomProofHook = func() ([]byte, uint64, error) {
 		return []byte{0}, CircuitsIdx, nil
@@ -59,4 +60,6 @@ func TestNewZkevmRpcdProducer(t *testing.T) {
 	require.Equal(t, res.BlockID, blockID)
 	require.Equal(t, res.Header, header)
 	require.NotEmpty(t, res.Proof)
+
+	require.Nil(t, dummyZkevmRpcdProducer.Cancel(context.Background(), common.Big1))
 }