We do not need the Content to be innerxml. cdata is enough.

Fixes #110

stanza/error_test.go

@@ -0,0 +1,31 @@
+package stanza
+
+import (
+	"encoding/xml"
+	"testing"
+)
+
+func TestErr_UnmarshalXML(t *testing.T) {
+	packet := `
+ <iq from='pubsub.example.com'
+       id='kj4vz31m'
+       to='romeo@example.net/foo'
+       type='error'>
+  <error type='wait'>
+    <resource-constraint
+        xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
+    <text xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>System overloaded, please retry</text>
+  </error>
+ </iq>`
+
+	parsedIQ := IQ{}
+	data := []byte(packet)
+	if err := xml.Unmarshal(data, &parsedIQ); err != nil {
+		t.Errorf("Unmarshal(%s) returned error", data)
+	}
+
+	xmppError := parsedIQ.Error
+	if xmppError.Text != "System overloaded, please retry" {
+		t.Errorf("Could not extract error text: '%s'", xmppError.Text)
+	}
+}