Add a view to see all books in a collection

internal/testutils/testutils.go

@@ -68,6 +68,23 @@ func TestBookPutCallWithDemoPayload(t *testing.T, payload string, bookId string,
 	}
 }
 
+func TestFetchOneModel[T any](t *testing.T, urlpath string, id string) (int, T) {
+	router := TestSetup()
+
+	token := ConnectDemoUser(router)
+	req, _ := http.NewRequest("GET", urlpath+"/"+id, nil)
+	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", token))
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	var result T
+	err := json.Unmarshal(w.Body.Bytes(), &result)
+	if err != nil {
+		t.Error(err)
+	}
+	return w.Code, result
+}
+
 func TestFetchModel[T any](t *testing.T, urlpath string, limit string, offset string) (int, T) {
 	router := TestSetup()