Add encode benchmarks

encoding/gsm7_test.go

@@ -217,4 +217,38 @@ func TestDeletesLastValue(t *testing.T) {
 	if !bytes.Equal(data, expected) {
 		t.Errorf("expected %v, got %v", expected, data)
 	}
+}
+
+// benchmark
+func BenchmarkGSM7EncodeSimpleASCIIString(b *testing.B) {
+	coder := &GSM7Coder{}
+	var buf bytes.Buffer
+	input := "Sunshine"
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		coder.Encode(input, &buf)
+	}
+}
+
+func BenchmarkGSM7EncodeComplexASCIIString(b *testing.B) {
+	coder := &GSM7Coder{}
+	var buf bytes.Buffer
+	input := "Golden rays play, Chasing night away."
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		coder.Encode(input, &buf)
+	}
+}
+
+func BenchmarkGSM7EncodeComplex8nASCIIString(b *testing.B) {
+	coder := &GSM7Coder{}
+	var buf bytes.Buffer
+	input := "Ducks are fucking great, they quacks, O quackers, what the fuck."
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		coder.Encode(input, &buf)
+	}
 }