increase spec robustness (#4498)

spec/features/work_packages/table/switch_types_spec.rb

@@ -70,6 +70,11 @@ describe 'Switching types in work package table', js: true do
     wp_table.expect_notification(
       message: 'Successful update. Click here to open this work package in fullscreen view.'
     )
+    # safegurards
+    wp_table.dismiss_notification!
+    wp_table.expect_no_notification(
+      message: 'Successful update. Click here to open this work package in fullscreen view.'
+    )
 
     # Switch type
     type_field.activate!
@@ -80,6 +85,12 @@ describe 'Switching types in work package table', js: true do
       type:    :error,
       message: "#{cf_req_text.name} can't be blank."
     )
+    # safegurards
+    wp_table.dismiss_notification!
+    wp_table.expect_no_notification(
+      type:    :error,
+      message: "#{cf_req_text.name} can't be blank."
+    )
 
     # Old text field should disappear
     text_field.expect_state_text '-'
@@ -92,6 +103,11 @@ describe 'Switching types in work package table', js: true do
     wp_table.expect_notification(
       message: 'Successful update. Click here to open this work package in fullscreen view.'
     )
+    # safegurards
+    wp_table.dismiss_notification!
+    wp_table.expect_no_notification(
+      message: 'Successful update. Click here to open this work package in fullscreen view.'
+    )
 
     expect(text_field).not_to be_editable
 
@@ -102,6 +118,11 @@ describe 'Switching types in work package table', js: true do
     wp_table.expect_notification(
       message: 'Successful update. Click here to open this work package in fullscreen view.'
     )
+    # safegurards
+    wp_table.dismiss_notification!
+    wp_table.expect_no_notification(
+      message: 'Successful update. Click here to open this work package in fullscreen view.'
+    )
 
     req_text_field.expect_state_text '-'
   end