- all stacks (de)serialization

stacks/arraystack/arraystack_test.go

@@ -5,6 +5,7 @@
 package arraystack
 
 import (
+	"fmt"
 	"testing"
 )
 
@@ -231,6 +232,34 @@ func TestStackIteratorLast(t *testing.T) {
 	}
 }
 
+func TestStackSerialization(t *testing.T) {
+	stack := New()
+	stack.Push("a")
+	stack.Push("b")
+	stack.Push("c")
+
+	var err error
+	assert := func() {
+		if actualValue, expectedValue := fmt.Sprintf("%s%s%s", stack.Values()...), "cba"; actualValue != expectedValue {
+			t.Errorf("Got %v expected %v", actualValue, expectedValue)
+		}
+		if actualValue, expectedValue := stack.Size(), 3; actualValue != expectedValue {
+			t.Errorf("Got %v expected %v", actualValue, expectedValue)
+		}
+		if err != nil {
+			t.Errorf("Got error %v", err)
+		}
+	}
+
+	assert()
+
+	json, err := stack.ToJSON()
+	assert()
+
+	err = stack.FromJSON(json)
+	assert()
+}
+
 func benchmarkPush(b *testing.B, stack *Stack, size int) {
 	for i := 0; i < b.N; i++ {
 		for n := 0; n < size; n++ {