diff --git a/test/core/augmented_form_test.dart b/test/core/augmented_form_test.dart
index dbb2c7e2..c807bb0e 100644
--- a/test/core/augmented_form_test.dart
+++ b/test/core/augmented_form_test.dart
@@ -11,16 +11,22 @@ import "package:test/test.dart";
 void main() {
   group("AugmentedForm should", () {
     test("be able to be instantiated", () {
+      const id = "urn:foobar";
       const href = "http://example.org";
+      const href2 = "coap://example.org";
       final thingDescription = ThingDescription.fromJson(
         const {
           "@context": "https://www.w3.org/2022/wot/td/v1.1",
           "title": "Test TD",
+          "id": id,
           "properties": {
             "test": {
               "forms": [
                 {
                   "href": href,
+                  "contentCoding": "gzip",
+                  "scopes": ["hi"],
+                  "subprotocol": "Hyper Text Coffee Pot Control Protocol",
                   "additionalResponses": [
                     {
                       "contentType": "application/json",
@@ -29,7 +35,15 @@ void main() {
                 }
               ],
             },
+            "test2": {
+              "forms": [
+                {
+                  "href": "/test",
+                },
+              ],
+            },
           },
+          "base": href2,
           "security": ["nosec_sc"],
           "securityDefinitions": {
             "nosec_sc": {
@@ -50,11 +64,28 @@ void main() {
       expect(augmentedForm.href, Uri.parse(href));
       expect(augmentedForm.security, ["nosec_sc"]);
       expect(augmentedForm.securityDefinitions.first, isA<NoSecurityScheme>());
-      expect(augmentedForm.tdIdentifier, "Test TD");
+      expect(augmentedForm.tdIdentifier, id);
       expect(
         augmentedForm.additionalResponses?.first.contentType,
         "application/json",
       );
+      expect(augmentedForm.contentCoding, "gzip");
+      expect(augmentedForm.contentType, "application/json");
+      expect(augmentedForm.scopes, ["hi"]);
+      expect(
+        augmentedForm.subprotocol,
+        "Hyper Text Coffee Pot Control Protocol",
+      );
+
+      final affordance2 = thingDescription.properties?["test2"];
+
+      final augmentedForm2 = AugmentedForm(
+        affordance2!.forms[0],
+        affordance2,
+        thingDescription,
+        const {},
+      );
+      expect(augmentedForm2.href, Uri.parse("$href2/test"));
     });
   });
 }