diff --git a/mod/assign/tests/behat/assign_group_override.feature b/mod/assign/tests/behat/assign_group_override.feature
index 9fe42080e40..eba652c4017 100644
--- a/mod/assign/tests/behat/assign_group_override.feature
+++ b/mod/assign/tests/behat/assign_group_override.feature
@@ -257,3 +257,102 @@ Feature: Assign group override
     And I should see "Only visible to members/Non-Participation" in the "Override group" "select"
     And I should see "Only see own membership" in the "Override group" "select"
     And I should not see "Not visible" in the "Override group" "select"
+
+  @javascript
+  Scenario: Assign activity group overrides are displayed on the timeline block
+    Given the following "group members" exist:
+      | user     | group |
+      | student1 | G2    |
+    And I am on the "Test assignment name" "assign activity editing" page logged in as teacher1
+    And I set the following fields to these values:
+      | allowsubmissionsfromdate[enabled]  | 1            |
+      | duedate[enabled]                   | 1            |
+      | allowsubmissionsfromdate           | ##today##    |
+      | duedate                            | ##tomorrow## |
+    And I press "Save and display"
+    When I log in as "student1"
+    Then I should see "##tomorrow##%A, %d %B %Y##" in the "Timeline" "block"
+    And I am on the "Test assignment name" "assign activity" page logged in as teacher1
+    And I navigate to "Overrides" in current page administration
+    And I select "Group overrides" from the "jump" singleselect
+    And I press "Add group override"
+    And I set the following fields to these values:
+      | Override group         | Group 1            |
+      | Allow submissions from | ##tomorrow##       |
+      | Due date               | ##tomorrow +1day## |
+    And I press "Save"
+    And I log in as "student1"
+    And I should see "##tomorrow +1day##%A, %d %B %Y##" in the "Timeline" "block"
+    And I am on the "Test assignment name" "assign activity" page logged in as teacher1
+    And I navigate to "Overrides" in current page administration
+    And I select "Group overrides" from the "jump" singleselect
+    And I press "Add group override"
+    And I set the following fields to these values:
+      | Override group         | Group 2             |
+      | Allow submissions from | ##tomorrow +1day##  |
+      | Due date               | ##tomorrow +3days## |
+    And I press "Save"
+    And I click on "Move up" "link" in the "Group 2" "table_row"
+    And I log in as "student1"
+    And I should see "##tomorrow +3days##%A, %d %B %Y##" in the "Timeline" "block"
+
+  @javascript
+  Scenario: Assign activity user override is displayed even if group override exists on the timeline block
+    Given the following "group members" exist:
+      | user     | group |
+      | student1 | G2    |
+    And I am on the "Test assignment name" "assign activity editing" page logged in as teacher1
+    And I set the following fields to these values:
+      | allowsubmissionsfromdate[enabled]  | 1            |
+      | duedate[enabled]                   | 1            |
+      | allowsubmissionsfromdate           | ##today##    |
+      | duedate                            | ##tomorrow## |
+    And I press "Save and display"
+    And I navigate to "Overrides" in current page administration
+    And I select "Group overrides" from the "jump" singleselect
+    And I press "Add group override"
+    And I set the following fields to these values:
+      | Override group         | Group 1            |
+      | Allow submissions from | ##tomorrow##       |
+      | Due date               | ##tomorrow +1day## |
+    And I press "Save"
+    And I press "Add group override"
+    And I set the following fields to these values:
+      | Override group         | Group 2             |
+      | Allow submissions from | ##tomorrow +1day##  |
+      | Due date               | ##tomorrow +3days## |
+    And I navigate to "Overrides > Add user override" in current page administration
+    And I set the following fields to these values:
+      | Override user            | Sam1 Student1     |
+      | allowsubmissionsfromdate | ##tomorrow##      |
+      | duedate                  | ##tomorrow noon## |
+    And I press "Save"
+    When I log in as "student1"
+    Then I should see "##tomorrow noon##%A, %d %B %Y##" in the "Timeline" "block"
+
+  @javascript
+  Scenario: Assign activity override are not visible on timeline block when student is unenrolled
+    Given the following "group members" exist:
+      | user     | group |
+      | student1 | G2    |
+    And I am on the "Test assignment name" "assign activity" page logged in as teacher1
+    And I navigate to "Overrides" in current page administration
+    And I select "Group overrides" from the "jump" singleselect
+    And I press "Add group override"
+    And I set the following fields to these values:
+      | Override group         | Group 2             |
+      | Allow submissions from | ##tomorrow +1day##  |
+      | Due date               | ##tomorrow +3days## |
+    And I navigate to "Overrides > Add user override" in current page administration
+    And I set the following fields to these values:
+      | Override user            | Sam1 Student1     |
+      | allowsubmissionsfromdate | ##tomorrow##      |
+      | duedate                  | ##tomorrow noon## |
+    And I press "Save"
+    And I am on "Course 1" course homepage
+    And I navigate to course participants
+    And I click on "Unenrol" "icon" in the "student1" "table_row"
+    And I click on "Unenrol" "button" in the "Unenrol" "dialogue"
+    When I log in as "student1"
+    Then "Test assignment name" "link" should not exist in the "Timeline" "block"
+    And I should not see "##tomorrow noon##%A, %d %B %Y##" in the "Timeline" "block"