diff --git a/node.go b/node.go
index 5972d05..e18df87 100644
--- a/node.go
+++ b/node.go
@@ -66,6 +66,15 @@ func (this *Node) GetValue() string {
return res
}
+// SetValue sets the value of the node to the given parameter.
+// It deletes all children of the node so the old data does not get back at node.GetValue
+func (this *Node) SetValue(val string) {
+ t := NewNode(NT_TEXT)
+ t.Value = val
+ t.Parent = this
+ this.Children = []*Node{t} // brutally replace all other children
+}
+
// Get node value as string
func (this *Node) S(namespace, name string) string {
foundNode := rec_SelectNode(this, namespace, name)
diff --git a/xmlx_test.go b/xmlx_test.go
index 1da420b..192aa20 100644
--- a/xmlx_test.go
+++ b/xmlx_test.go
@@ -4,7 +4,10 @@
package xmlx
-import "testing"
+import (
+ "testing"
+ "encoding/xml"
+)
func TestLoadLocal(t *testing.T) {
doc := New()
@@ -251,3 +254,117 @@ func TestElementNodeValueFetch(t *testing.T) {
t.Errorf("Failed to get availability using B, got: %v, wanted: true", v)
}
}
+
+// node.SetValue(x); x == node.GetValue
+func TestElementNodeValueFetchAndSetIdentity (t *testing.T) {
+ // Setup: xyzzy
+ // The xmlx parser creates a nameless NT_TEXT node containing the value 'xyzzy'
+ rootN := NewNode(NT_ROOT)
+ rootN.Name = xml.Name{Space: "", Local: "root"}
+ textN := NewNode(NT_ELEMENT)
+ textN.Name = xml.Name{Space: "", Local: "text"}
+ namelessN := NewNode(NT_TEXT)
+ namelessN.Value = "xyzzy"
+ rootN.AddChild(textN)
+ textN.AddChild(namelessN)
+
+ targetN := rootN.SelectNode("", "text") // selects textN
+ if (targetN != textN) {
+ t.Errorf("Failed to get the correct textN, got %#v", targetN)
+ }
+
+ // targetN.Value is empty (as the value lives in the childNode)
+ if (targetN.Value != "") {
+ t.Errorf("Failed to prepare correctly, TargetN.Value is not empty, it contains %#v", targetN.Value)
+ }
+
+ // Test correct retrieval
+ if v := rootN.S("", "text"); v != "xyzzy" {
+ t.Errorf("Failed to get value as string, got: '%s', wanted: 'xyzzy'", v)
+ }
+
+ // Set the value of the nameless child
+ targetN.SetValue("plugh")
+
+ // Test correct retrieval
+ if v := rootN.S("", "text"); v != "plugh" {
+ t.Errorf("Failed to get value as string, got: '%s', wanted: 'plugh'", v)
+ }
+}
+
+// Test as it could be used to read in a XML file, change some values and write it out again.
+// For example, a HTML/XML proxy service.
+func TestElementNodeValueFetchAndSet(t *testing.T) {
+ IndentPrefix = ""
+
+ data := `
+ r
+ edBMW50
+ .256
+ 2
+
+ Tr
+
+ ue`
+ doc := New()
+
+ if err := doc.LoadString(data, nil); nil != err {
+ t.Fatalf("LoadString(): %s", err)
+ }
+
+ carN := doc.SelectNode("", "car")
+ if carN == nil {
+ t.Fatalf("Failed to get the car, got nil, wanted Node{car}")
+ }
+
+ colorNode := carN.SelectNode("", "color")
+ if colorNode == nil {
+ t.Fatalf("Failed to get the color, got nil, wanted Node{color}")
+ }
+
+ colorVal := colorNode.GetValue()
+ if colorVal != "red" {
+ t.Fatalf("Failed to get the color, got %v, wanted 'red'", colorVal)
+ }
+
+ colorNode.SetValue("blue")
+
+ expected := `blueBMW50
+ .256
+ 2
+
+ Tr
+
+ ue`
+
+
+ if got := doc.Root.String(); got != expected {
+ t.Fatalf("expected: \n%s\ngot: \n%s\n", expected, got)
+ }
+
+ // now set the brand
+ brandNode := carN.SelectNode("", "brand")
+ if brandNode == nil {
+ t.Fatalf("Failed to get the color, got nil, wanted Node{brand}")
+ }
+
+ brandVal := brandNode.GetValue()
+ if brandVal != "BMW" {
+ t.Fatalf("Failed to get the brand, got %v, wanted 'BMW'", brandVal)
+ }
+
+ brandNode.SetValue("Trabant")
+
+ // Notice, we lose the tag in BMW, that's intentional
+ expected = `blueTrabant50
+ .256
+ 2
+
+ Tr
+
+ ue`
+
+ if got := doc.Root.String(); got != expected {
+ t.Fatalf("expected: \n%s\ngot: \n%s\n", expected, got)
+ }
+}