fix(core/config/xml): prompt error when config format is incorrect

core/config/xml/xml.go

@@ -70,7 +70,17 @@ func (xc *Config) ParseData(data []byte) (config.Configer, error) {
 		return nil, err
 	}
 
-	x.data = config.ExpandValueEnvForMap(d["config"].(map[string]interface{}))
+	v := d["config"]
+	if v == nil {
+		return nil, fmt.Errorf("xml parse should incluce in <config></config> tags")
+	}
+
+	confVal, ok := v.(map[string]interface{})
+	if !ok {
+		return nil, fmt.Errorf("xml parse <config></config> tags should incluce sub tags")
+	}
+
+	x.data = config.ExpandValueEnvForMap(confVal)
 
 	return x, nil
 }

core/config/xml/xml_test.go

@@ -150,6 +150,25 @@ func TestXML(t *testing.T) {
 	assert.Equal(t, "MySection", sec.Name)
 }
 
+func TestXMLMissConfig(t *testing.T) {
+	xmlcontext1 := `
+	<?xml version="1.0" encoding="UTF-8"?>
+	<appname>beeapi</appname>
+	`
+
+	c := &Config{}
+	_, err := c.ParseData([]byte(xmlcontext1))
+	assert.Equal(t, "xml parse should incluce in <config></config> tags", err.Error())
+
+	xmlcontext2 := `
+	<?xml version="1.0" encoding="UTF-8"?>
+	<config></config>
+	`
+
+	_, err = c.ParseData([]byte(xmlcontext2))
+	assert.Equal(t, "xml parse <config></config> tags should incluce sub tags", err.Error())
+}
+
 type Section struct {
 	Name string `xml:"name"`
 }