Add StructHasStringValue, StructHasProperty

struct_test.go

@@ -4,6 +4,22 @@ import (
   "testing"
 )
 
+func TestStructHasProperty(t *testing.T) {
+  type O struct {
+    Name string
+    Age int
+  }
+
+  o := &O{
+    Name: "Nick",
+    Age: 15,
+  }
+
+  if !StructHasProperty(o, "Name") {
+    t.Fatal("Should have property name")
+  }
+}
+
 func TestStructSetValue(t *testing.T) {
   type O struct {
     Name string