philipstanislaus · September 3, 2019 16:03 · Sep 3, 2019
diff --git a/optional_values_with_empty_field_test.go b/optional_values_with_empty_field_test.go
@@ -0,0 +1,62 @@
+package playground_optional_values_with_nil_pointers
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/ChainSafe/gossamer/codec"
+)
+
+// Bool represents boolean values
+type Bool struct {
+	Value bool
+	Empty bool
+}
+
+// NewBool creates a new Bool
+func NewBool(v bool) Bool {
+	return Bool{v, false}
+}
+
+func NewEmptyBool() Bool {
+	return Bool{false, true}
+}
+
+func (b *Bool) Encode() ([]byte, error) {
+	return codec.Encode(b.Value)
+}
+
+func (b *Bool) String() string {
+	if b.Empty {
+		return fmt.Sprintf("nil")
+	}
+	return fmt.Sprintf("%t", b.Value)
+}
+
+func (b *Bool) Get() (empty bool, value bool) {
+	return b.Empty, b.Value
+}
+
+func (b *Bool) Set(v bool) {
+	b.Value = v
+	b.Empty = false
+}
+
+func (b *Bool) SetEmpty() {
+	b.Value = false
+	b.Empty = true
+}
+
+func TestNo3(t *testing.T) {
+	b := NewBool(true)
+	c := NewEmptyBool()
+
+	fmt.Println(b.String())
+	fmt.Println(c.String())
+
+	b.SetEmpty()
+	c.Set(false)
+
+	fmt.Println(b.String())
+	fmt.Println(c.String())
+}