diff --git a/example/example.go b/example/example.go
index 92788f7..60112f8 100644
--- a/example/example.go
+++ b/example/example.go
@@ -15,14 +15,12 @@ type writer interface {
 }
 
 func writeToWriter(w writer) {
-	w.Write([]string{"userId", "secret", "comment"})
-	w.Write([]string{"-21+63", "=A1", "foo, bar"})
-	w.Write([]string{"+42", "\tsecret", "\nplop"})
-	w.Write([]string{"123", "blablabla", "@foobar"})
+	must(w.Write([]string{"userId", "secret", "comment"}))
+	must(w.Write([]string{"-21+63", "=A1", "foo, bar"}))
+	must(w.Write([]string{"+42", "\tsecret", "\nplop"}))
+	must(w.Write([]string{"123", "blablabla", "@foobar"}))
 	w.Flush()
-	if err := w.Error(); err != nil {
-		panic(err)
-	}
+	must(w.Error())
 }
 
 func unsafe() string {
diff --git a/example/utils.go b/example/utils.go
new file mode 100644
index 0000000..6f6f7dc
--- /dev/null
+++ b/example/utils.go
@@ -0,0 +1,7 @@
+package main
+
+func must(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
diff --git a/writer_test.go b/writer_test.go
index d1260e4..3ec545e 100644
--- a/writer_test.go
+++ b/writer_test.go
@@ -7,6 +7,12 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func must(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
 func buildTest(forceDoubleQuotes bool, escapeCharEqual bool, escapeCharPlus bool, escapeCharMinus bool, escapeCharAt bool, escapeCharTab bool, escapeCharCR bool) string {
 	var buff strings.Builder
 
@@ -22,14 +28,12 @@ func buildTest(forceDoubleQuotes bool, escapeCharEqual bool, escapeCharPlus bool
 			EscapeCharCR:      escapeCharCR,
 		},
 	)
-	writer.Write([]string{"userId", "secret", "comment"})
-	writer.Write([]string{"-21+63", "=A1", "foo, bar"})
-	writer.Write([]string{"+42", "\tsecret", "\nplop"})
-	writer.Write([]string{"123", "blablabla", "@foobar"})
+	must(writer.Write([]string{"userId", "secret", "comment"}))
+	must(writer.Write([]string{"-21+63", "=A1", "foo, bar"}))
+	must(writer.Write([]string{"+42", "\tsecret", "\nplop"}))
+	must(writer.Write([]string{"123", "blablabla", "@foobar"}))
 	writer.Flush()
-	if err := writer.Error(); err != nil {
-		panic(err)
-	}
+	must(writer.Error())
 
 	return buff.String()
 }