diff --git a/tests/acceptance/features/apiCollaboration/wopi.feature b/tests/acceptance/features/apiCollaboration/wopi.feature
index 4584b52594..6cefb26130 100644
--- a/tests/acceptance/features/apiCollaboration/wopi.feature
+++ b/tests/acceptance/features/apiCollaboration/wopi.feature
@@ -3,10 +3,12 @@ Feature: collaboration (wopi)
   I want to access files with collaboration service apps
   So that I can collaborate with other users
 
+  Background:
+    Given user "Alice" has been created with default attributes and without skeleton files
+
 
   Scenario Outline: open file with .odt extension
-    Given user "Alice" has been created with default attributes and without skeleton files
-    And user "Alice" has uploaded file "filesForUpload/simple.odt" to "simple.odt"
+    Given user "Alice" has uploaded file "filesForUpload/simple.odt" to "simple.odt"
     And we save it into "FILEID"
     When user "Alice" sends HTTP method "POST" to URL "<app-endpoint>"
     Then the HTTP status code should be "200"
@@ -49,3 +51,70 @@ Feature: collaboration (wopi)
       | app-endpoint                                     |
       | /app/open?file_id=<<FILEID>>&app_name=FakeOffice |
       | /app/open?file_id=<<FILEID>>                     |
+
+
+  Scenario: open text file with app name in url query (MIME type not registered in app-registry)
+    Given user "Alice" has uploaded file "filesForUpload/lorem.txt" to "lorem.txt"
+    And we save it into "FILEID"
+    When user "Alice" sends HTTP method "POST" to URL "/app/open?file_id=<<FILEID>>&app_name=FakeOffice"
+    Then the HTTP status code should be "200"
+    And the JSON data of the response should match
+      """
+      {
+        "type": "object",
+        "required": [
+          "app_url",
+          "method",
+          "form_parameters"
+        ],
+        "properties": {
+          "app_url": {
+            "type": "string",
+            "pattern": "^.*\\?WOPISrc=.*wopi%2Ffiles%2F[a-fA-F0-9]{64}$"
+          },
+          "method": {
+            "const": "POST"
+          },
+          "form_parameters": {
+            "type": "object",
+            "required": [
+              "access_token",
+              "access_token_ttl"
+            ],
+            "properties": {
+              "access_token": {
+                "type": "string"
+              },
+              "access_token_ttl": {
+                "type": "string"
+              }
+            }
+          }
+        }
+      }
+      """
+
+
+  Scenario: open text file without app name in url query (MIME type not registered in app-registry)
+    Given user "Alice" has uploaded file "filesForUpload/lorem.txt" to "lorem.txt"
+    And we save it into "FILEID"
+    When user "Alice" sends HTTP method "POST" to URL "/app/open?file_id=<<FILEID>>"
+    Then the HTTP status code should be "500"
+    And the JSON data of the response should match
+      """
+      {
+        "type": "object",
+        "required": [
+          "code",
+          "message"
+        ],
+        "properties": {
+          "code": {
+            "const": "SERVER_ERROR"
+          },
+          "message": {
+            "const": "Error contacting the requested application, please use a different one or try again later"
+          }
+        }
+      }
+      """