@@ -6,6 +6,7 @@ "testing"
 )
 
 func TestWrite(t *testing.T) {
+	t.Parallel()
 	b := Buffer{}
 	data := []byte("test")
 
@@ -24,21 +25,27 @@ }
 }
 
 func TestRead(t *testing.T) {
+	t.Parallel()
 	b := NewBuffer([]byte("testdata"))
 	p := make([]byte, 3)
 	n, err := b.Read(p)
 
-	if n != 3 || string(p[:n]) != "tes" {
-		t.Errorf("Read returned incorrect data: expected 'tes', got '%s'", p[:n])
+	if n != 3 || string(p[:n]) != "tes" || err != nil {
+		t.Errorf("Read returned incorrect data: expected 'tes', got '%s', error: %v", p[:n], err)
 	}
 
 	b.Reset()
-	b.Write([]byte("abc"))
+	data := []byte("abc")
+	n, err = b.Write(data)
+	if n != 3 || err != nil {
+		t.Errorf("Write failed: expected %d bytes, got %d, error: %v", len(data), n, err)
+	}
+
 	p = make([]byte, 2)
 	n, err = b.Read(p)
 
-	if n != 2 || string(p) != "ab" {
-		t.Errorf("Read after reset failed: expected 'ab', got '%s'", p)
+	if n != 2 || string(p) != "ab" || err != nil {
+		t.Errorf("Read after reset failed: expected 'ab', got '%s', error: %v", p, err)
 	}
 
 	b.pos = b.len
@@ -49,8 +56,13 @@ }
 }
 
 func TestReset(t *testing.T) {
+	t.Parallel()
 	b := NewBuffer([]byte("test"))
-	b.Write([]byte("data"))
+	data := []byte("data")
+	n, err := b.Write(data)
+	if n != 4 || err != nil {
+		t.Errorf("Write failed: expected %d bytes, got %d, error: %v", len(data), n, err)
+	}
 
 	if b.Len() != 8 || b.pos != 0 {
 		t.Errorf("Initial buffer state incorrect: len=%d, pos=%d", b.Len(), b.pos)
@@ -63,6 +75,7 @@ }
 }
 
 func TestSeek(t *testing.T) {
+	t.Parallel()
 	b := NewBuffer([]byte("test"))
 	tests := []struct {
 		offset int64

@@ -44,6 +44,7 @@ }
 
 func copyRecursive(storage storage.Writer, src string) error {
 	buf := new(buffer.Buffer)
+
 	return filepath.WalkDir(src, func(path string, d fs.DirEntry, err error) error {
 		if err != nil {
 			return err
@@ -238,7 +239,9 @@ r.Hashes = append(r.Hashes, h)
 
 	log.Debug("rendering sitemap")
 	buf.Reset()
-	sitemap.WriteTo(buf)
+	if _, err := sitemap.WriteTo(buf); err != nil {
+		return nil, err
+	}
 	if err := storage.Write("/sitemap.xml", buf); err != nil {
 		return nil, err
 	}

@@ -14,8 +14,6 @@ "go.alanpearce.eu/website/internal/buffer"
 	"go.alanpearce.eu/website/internal/storage"
 )
 
-type Content io.ReadSeekCloser
-
 var encodings = map[string]string{
 	"br":   ".br",
 	"gzip": ".gz",
@@ -83,7 +81,7 @@ }
 
 func pathNameToFileName(pathname string) string {
 	if strings.HasSuffix(pathname, "/") {
-		pathname = pathname + "index.html"
+		pathname += "index.html"
 	}
 
 	return strings.TrimPrefix(pathname, "/")

@@ -80,6 +80,7 @@ var hash plumbing.Hash
 	for _, ref := range refs {
 		if ref.Name() == plumbing.Main {
 			hash = ref.Hash()
+
 			break
 		}
 	}

@@ -62,6 +62,7 @@ }
 		if entry.IsDir() {
 			if entry.Name() == ".git" {
 				l.Debug("skipping directory", "entry", entry.Name())
+
 				return fs.SkipDir
 			}
 			l.Debug("adding directory to watcher", "path", path)