From 354de2d8da092064f728c54ffd51fe2059c6634f Mon Sep 17 00:00:00 2001
From: Vlad <13818348+walldiss@users.noreply.github.com>
Date: Wed, 5 Jun 2024 20:50:40 +0500
Subject: [PATCH] Err > Error

---
 share/shwap/row.go                | 2 +-
 share/shwap/row_namespace_data.go | 2 +-
 share/shwap/sample.go             | 6 +++---
 share/shwap/sample_test.go        | 8 ++++----
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/share/shwap/row.go b/share/shwap/row.go
index f1e3b8b019..f03c7366f5 100644
--- a/share/shwap/row.go
+++ b/share/shwap/row.go
@@ -93,7 +93,7 @@ func (r Row) Validate(dah *share.Root, idx int) error {
 	}
 
 	if err := r.verifyInclusion(dah, idx); err != nil {
-		return fmt.Errorf("%w: %w", ErrorFailedVerification, err)
+		return fmt.Errorf("%w: %w", ErrFailedVerification, err)
 	}
 	return nil
 }
diff --git a/share/shwap/row_namespace_data.go b/share/shwap/row_namespace_data.go
index 685005f0c5..2bbf4c06fa 100644
--- a/share/shwap/row_namespace_data.go
+++ b/share/shwap/row_namespace_data.go
@@ -127,7 +127,7 @@ func (rnd RowNamespaceData) Validate(dah *share.Root, namespace share.Namespace,
 	}
 
 	if !rnd.verifyInclusion(rowRoot, namespace) {
-		return fmt.Errorf("%w for row: %d", ErrorFailedVerification, rowIdx)
+		return fmt.Errorf("%w for row: %d", ErrFailedVerification, rowIdx)
 	}
 	return nil
 }
diff --git a/share/shwap/sample.go b/share/shwap/sample.go
index c1de9d66f3..c521410e35 100644
--- a/share/shwap/sample.go
+++ b/share/shwap/sample.go
@@ -12,9 +12,9 @@ import (
 	"github.com/celestiaorg/celestia-node/share/shwap/pb"
 )
 
-// ErrorFailedVerification is returned when inclusion proof verification fails. It is returned
+// ErrFailedVerification is returned when inclusion proof verification fails. It is returned
 // when the data and the proof do not match trusted data root.
-var ErrorFailedVerification = errors.New("failed to verify inclusion")
+var ErrFailedVerification = errors.New("failed to verify inclusion")
 
 // Sample represents a data share along with its Merkle proof, used to validate the share's
 // inclusion in a data square.
@@ -67,7 +67,7 @@ func (s Sample) Validate(dah *share.Root, rowIdx, colIdx int) error {
 		return fmt.Errorf("invalid SampleProofType: %d", s.ProofType)
 	}
 	if !s.verifyInclusion(dah, rowIdx, colIdx) {
-		return ErrorFailedVerification
+		return ErrFailedVerification
 	}
 	return nil
 }
diff --git a/share/shwap/sample_test.go b/share/shwap/sample_test.go
index 04189951cd..34fb4bfa9b 100644
--- a/share/shwap/sample_test.go
+++ b/share/shwap/sample_test.go
@@ -48,26 +48,26 @@ func TestSampleNegativeVerifyInclusion(t *testing.T) {
 
 	// incorrect row index
 	err = sample.Validate(root, 1, 0)
-	require.ErrorIs(t, err, shwap.ErrorFailedVerification)
+	require.ErrorIs(t, err, shwap.ErrFailedVerification)
 
 	// Corrupt the share
 	sample.Share[0] ^= 0xFF
 	err = sample.Validate(root, 0, 0)
-	require.ErrorIs(t, err, shwap.ErrorFailedVerification)
+	require.ErrorIs(t, err, shwap.ErrFailedVerification)
 
 	// incorrect proofType
 	sample, err = inMem.Sample(context.Background(), 0, 0)
 	require.NoError(t, err)
 	sample.ProofType = rsmt2d.Col
 	err = sample.Validate(root, 0, 0)
-	require.ErrorIs(t, err, shwap.ErrorFailedVerification)
+	require.ErrorIs(t, err, shwap.ErrFailedVerification)
 
 	// Corrupt the last root hash byte
 	sample, err = inMem.Sample(context.Background(), 0, 0)
 	require.NoError(t, err)
 	root.RowRoots[0][len(root.RowRoots[0])-1] ^= 0xFF
 	err = sample.Validate(root, 0, 0)
-	require.ErrorIs(t, err, shwap.ErrorFailedVerification)
+	require.ErrorIs(t, err, shwap.ErrFailedVerification)
 }
 
 func TestSampleProtoEncoding(t *testing.T) {