Added more base components to mutable state.

Chopping through the list.

datamodel/high/base/xml_test.go

@@ -7,7 +7,10 @@ import (
 	"fmt"
 	lowmodel "github.com/pb33f/libopenapi/datamodel/low"
 	lowbase "github.com/pb33f/libopenapi/datamodel/low/base"
+	"github.com/stretchr/testify/assert"
 	"gopkg.in/yaml.v3"
+	"strings"
+	"testing"
 )
 
 func ExampleNewXML() {
@@ -16,7 +19,10 @@ func ExampleNewXML() {
 	// this can be either JSON or YAML.
 	yml := `
 namespace: https://pb33f.io/schema
-prefix: sample`
+name: something
+attribute: true
+prefix: sample
+wrapped: true`
 
 	// unmarshal raw bytes
 	var node yaml.Node
@@ -34,3 +40,35 @@ prefix: sample`
 	fmt.Print(highXML.Namespace)
 	// Output: https://pb33f.io/schema
 }
+
+func TestContact_Render(t *testing.T) {
+
+	// create an example schema object
+	// this can be either JSON or YAML.
+	yml := `namespace: https://pb33f.io/schema
+name: something
+attribute: true
+prefix: sample
+wrapped: true`
+
+	// unmarshal raw bytes
+	var node yaml.Node
+	_ = yaml.Unmarshal([]byte(yml), &node)
+
+	// build out the low-level model
+	var lowXML lowbase.XML
+	_ = lowmodel.BuildModel(node.Content[0], &lowXML)
+	_ = lowXML.Build(node.Content[0], nil)
+
+	// build the high level tag
+	highXML := NewXML(&lowXML)
+
+	// print out the XML doc
+	highXMLBytes, _ := highXML.Render()
+	assert.Equal(t, yml, strings.TrimSpace(string(highXMLBytes)))
+
+	highXML.Attribute = false
+	highXMLBytes, _ = highXML.Render()
+	assert.NotEqual(t, yml, strings.TrimSpace(string(highXMLBytes)))
+
+}