diff --git a/qbft/spectest/all_tests.go b/qbft/spectest/all_tests.go
index 484593f9e..3ec27c295 100644
--- a/qbft/spectest/all_tests.go
+++ b/qbft/spectest/all_tests.go
@@ -1,6 +1,8 @@
 package spectest
 
 import (
+	"testing"
+
 	"github.com/bloxapp/ssv-spec/qbft/spectest/tests"
 	"github.com/bloxapp/ssv-spec/qbft/spectest/tests/commit"
 	"github.com/bloxapp/ssv-spec/qbft/spectest/tests/controller/decided"
@@ -14,7 +16,6 @@ import (
 	"github.com/bloxapp/ssv-spec/qbft/spectest/tests/roundchange"
 	"github.com/bloxapp/ssv-spec/qbft/spectest/tests/startinstance"
 	"github.com/bloxapp/ssv-spec/qbft/spectest/tests/timeout"
-	"testing"
 )
 
 type SpecTest interface {
@@ -116,9 +117,9 @@ var AllTests = []SpecTest{
 	messages.CreateRoundChangePreviouslyPrepared(),
 	messages.RoundChangeDataEncoding(),
 	messages.SignedMessageSigner0(),
-	//messages.MarshaJustifications(),  // TODO: implement
-	//messages.MarshaJustificationsWithFullData(),  // TODO: implement
-	//messages.UnMarshaJustifications(),  // TODO: implement
+	messages.MarshalJustifications(),
+	messages.MarshalJustificationsWithFullData(),
+	messages.UnmarshalJustifications(),
 
 	tests.HappyFlow(),
 	tests.SevenOperators(),
diff --git a/qbft/spectest/tests/messages/marsha_justification.go b/qbft/spectest/tests/messages/marsha_justification.go
deleted file mode 100644
index 8b96613e5..000000000
--- a/qbft/spectest/tests/messages/marsha_justification.go
+++ /dev/null
@@ -1,8 +0,0 @@
-package messages
-
-import "github.com/bloxapp/ssv-spec/qbft/spectest/tests"
-
-// MarshaJustifications tests marshalling justifications
-func MarshaJustifications() *tests.MsgSpecTest {
-	panic("implement")
-}
diff --git a/qbft/spectest/tests/messages/marsha_justification_with_full_data.go b/qbft/spectest/tests/messages/marsha_justification_with_full_data.go
deleted file mode 100644
index 36bb1c10f..000000000
--- a/qbft/spectest/tests/messages/marsha_justification_with_full_data.go
+++ /dev/null
@@ -1,8 +0,0 @@
-package messages
-
-import "github.com/bloxapp/ssv-spec/qbft/spectest/tests"
-
-// MarshaJustificationsWithFullData tests marshalling justifications with full data (should omit it)
-func MarshaJustificationsWithFullData() *tests.MsgSpecTest {
-	panic("implement")
-}
diff --git a/qbft/spectest/tests/messages/marshal_justification.go b/qbft/spectest/tests/messages/marshal_justification.go
new file mode 100644
index 000000000..77c869ae4
--- /dev/null
+++ b/qbft/spectest/tests/messages/marshal_justification.go
@@ -0,0 +1,41 @@
+package messages
+
+import (
+	"github.com/bloxapp/ssv-spec/qbft"
+	"github.com/bloxapp/ssv-spec/qbft/spectest/tests"
+	"github.com/bloxapp/ssv-spec/types"
+	"github.com/bloxapp/ssv-spec/types/testingutils"
+)
+
+// MarshalJustifications tests marshalling justifications
+func MarshalJustifications() *tests.MsgSpecTest {
+	ks := testingutils.Testing4SharesSet()
+
+	rcMsgs := []*qbft.SignedMessage{
+		testingutils.TestingRoundChangeMessageWithRound(ks.Shares[1], 1, 2),
+	}
+
+	prepareMsgs := []*qbft.SignedMessage{
+		testingutils.TestingPrepareMessage(ks.Shares[1], types.OperatorID(1)),
+	}
+
+	msg := testingutils.TestingProposalMessageWithParams(
+		ks.Shares[1], types.OperatorID(1), 2, qbft.FirstHeight, testingutils.TestingQBFTRootData,
+		testingutils.MarshalJustifications(rcMsgs), testingutils.MarshalJustifications(prepareMsgs))
+
+	r, _ := msg.GetRoot()
+	b, _ := msg.Encode()
+
+	return &tests.MsgSpecTest{
+		Name: "marshal justifications",
+		Messages: []*qbft.SignedMessage{
+			msg,
+		},
+		EncodedMessages: [][]byte{
+			b,
+		},
+		ExpectedRoots: [][32]byte{
+			r,
+		},
+	}
+}
diff --git a/qbft/spectest/tests/messages/marshal_justification_with_full_data.go b/qbft/spectest/tests/messages/marshal_justification_with_full_data.go
new file mode 100644
index 000000000..e6e0b3d1e
--- /dev/null
+++ b/qbft/spectest/tests/messages/marshal_justification_with_full_data.go
@@ -0,0 +1,36 @@
+package messages
+
+import (
+	"github.com/bloxapp/ssv-spec/qbft"
+	"github.com/bloxapp/ssv-spec/qbft/spectest/tests"
+	"github.com/bloxapp/ssv-spec/types"
+	"github.com/bloxapp/ssv-spec/types/testingutils"
+)
+
+// MarshalJustificationsWithFullData tests marshalling justifications with full data (should omit it)
+func MarshalJustificationsWithFullData() *tests.MsgSpecTest {
+	ks := testingutils.Testing4SharesSet()
+
+	encodedRCMsg, _ := testingutils.TestingRoundChangeMessageWithRound(ks.Shares[1], 1, 2).MarshalSSZ()
+	encodedPrepareMsg, _ := testingutils.TestingPrepareMessage(ks.Shares[1], types.OperatorID(1)).MarshalSSZ()
+
+	msg := testingutils.TestingProposalMessageWithParams(
+		ks.Shares[1], types.OperatorID(1), 2, qbft.FirstHeight, testingutils.TestingQBFTRootData,
+		[][]byte{encodedRCMsg}, [][]byte{encodedPrepareMsg})
+
+	r, _ := msg.GetRoot()
+	b, _ := msg.Encode()
+
+	return &tests.MsgSpecTest{
+		Name: "marshal justifications with full data",
+		Messages: []*qbft.SignedMessage{
+			msg,
+		},
+		EncodedMessages: [][]byte{
+			b,
+		},
+		ExpectedRoots: [][32]byte{
+			r,
+		},
+	}
+}
diff --git a/qbft/spectest/tests/messages/unmarsha_justification.go b/qbft/spectest/tests/messages/unmarsha_justification.go
deleted file mode 100644
index b20ee0ce7..000000000
--- a/qbft/spectest/tests/messages/unmarsha_justification.go
+++ /dev/null
@@ -1,8 +0,0 @@
-package messages
-
-import "github.com/bloxapp/ssv-spec/qbft/spectest/tests"
-
-// UnMarshaJustifications tests unmarshalling justifications
-func UnMarshaJustifications() *tests.MsgSpecTest {
-	panic("implement")
-}
diff --git a/qbft/spectest/tests/messages/unmarshal_justification.go b/qbft/spectest/tests/messages/unmarshal_justification.go
new file mode 100644
index 000000000..cc3ac062e
--- /dev/null
+++ b/qbft/spectest/tests/messages/unmarshal_justification.go
@@ -0,0 +1,38 @@
+package messages
+
+import (
+	"encoding/hex"
+
+	"github.com/bloxapp/ssv-spec/qbft"
+	"github.com/bloxapp/ssv-spec/qbft/spectest/tests"
+	"github.com/bloxapp/ssv-spec/types"
+	"github.com/bloxapp/ssv-spec/types/testingutils"
+)
+
+// UnmarshalJustifications tests unmarshalling justifications
+func UnmarshalJustifications() *tests.MsgSpecTest {
+	ks := testingutils.Testing4SharesSet()
+
+	encodedRCMsg, _ := hex.DecodeString("b77c035c1d1d9c6c7cc22810c50a85c9e560ad791509055061dfe07d403edaa1304161466d49f64844b6e5cf4b09709f069debfd91438f97d414a4f64cdcb4f8cf1e9703f8da141be9f74509087e2f84492314b0341966c4b8fc16d931f6ba086c00000074000000c400000001000000000000000300000000000000000000000000000002000000000000004c000000be956fb7df4ef37531682d588320084fc914c3f0fed335263e5b44062e6c29b40000000000000000500000005000000001020304")
+	encodedPrepareMsg, _ := hex.DecodeString("8129e6862a5120bd085e1936b4efb5a55fc7d19c0d0fda0e9ec576d18abd4a17ab3a033f5296b74c5fdaf85cb7b3da3201b63feca76b883613e3b1ca137e763a342e3b1dddbce016f8ca3cbce32c8b125dd8c25a7639819c20b539e9e7c6c5796c00000074000000c400000001000000000000000100000000000000000000000000000001000000000000004c000000be956fb7df4ef37531682d588320084fc914c3f0fed335263e5b44062e6c29b40000000000000000500000005000000001020304")
+
+	msg := testingutils.TestingProposalMessageWithParams(
+		ks.Shares[1], types.OperatorID(1), 2, qbft.FirstHeight, testingutils.TestingQBFTRootData,
+		[][]byte{encodedRCMsg}, [][]byte{encodedPrepareMsg})
+
+	r, _ := msg.GetRoot()
+	b, _ := msg.Encode()
+
+	return &tests.MsgSpecTest{
+		Name: "unmarshal justifications",
+		Messages: []*qbft.SignedMessage{
+			msg,
+		},
+		EncodedMessages: [][]byte{
+			b,
+		},
+		ExpectedRoots: [][32]byte{
+			r,
+		},
+	}
+}