Add validation for move action in SnippetInputAction

app/models/snippet_input_action.rb

@@ -18,6 +18,7 @@ class SnippetInputAction
   validates :file_path, presence: true
   validates :content, presence: true, if: -> (action) { action.create_action? || action.update_action? }
   validate :ensure_same_file_path_and_previous_path, if: :update_action?
+  validate :ensure_different_file_path_and_previous_path, if: :move_action?
   validate :ensure_allowed_action
 
   def initialize(action: nil, previous_path: nil, file_path: nil, content: nil, allowed_actions: nil)
@@ -52,6 +53,12 @@ class SnippetInputAction
     errors.add(:file_path, "can't be different from the previous_path attribute")
   end
 
+  def ensure_different_file_path_and_previous_path
+    return if previous_path != file_path
+
+    errors.add(:file_path, 'must be different from the previous_path attribute')
+  end
+
   def ensure_allowed_action
     return if @allowed_actions.empty?
 

changelogs/unreleased/fj-218516-add-validation-to-move-action.yml

+---
+title: Add validation for move action in SnippetInputAction
+merge_request: 34911
+author:
+type: other

spec/models/snippet_input_action_spec.rb

@@ -8,12 +8,12 @@ describe SnippetInputAction do
 
     where(:action, :file_path, :content, :previous_path, :allowed_actions, :is_valid, :invalid_field) do
       :create  | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
-      :move    | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
+      :move    | 'foobar'  | 'foobar' | 'foo1'   | nil                | true  | nil
       :delete  | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
       :update  | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
       :foo     | 'foobar'  | 'foobar' | 'foobar' | nil                | false | :action
       'create' | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
-      'move'   | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
+      'move'   | 'foobar'  | 'foobar' | 'foo1'   | nil                | true  | nil
       'delete' | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
       'update' | 'foobar'  | 'foobar' | 'foobar' | nil                | true  | nil
       'foo'    | 'foobar'  | 'foobar' | 'foobar' | nil                | false | :action
@@ -21,6 +21,12 @@ describe SnippetInputAction do
       ''       | 'foobar'  | 'foobar' | 'foobar' | nil                | false | :action
       :move    | 'foobar'  | 'foobar' | nil      | nil                | false | :previous_path
       :move    | 'foobar'  | 'foobar' | ''       | nil                | false | :previous_path
+      :move    | 'foobar'  | 'foobar' | 'foobar' | nil                | false | :file_path
+      :move    | nil       | 'foobar' | 'foobar' | nil                | false | :file_path
+      :move    | ''        | 'foobar' | 'foobar' | nil                | false | :file_path
+      :move    | nil       | 'foobar' | 'foo1'   | nil                | false | :file_path
+      :move    | 'foobar'  | nil      | 'foo1'   | nil                | true  | nil
+      :move    | 'foobar'  | ''       | 'foo1'   | nil                | true  | nil
       :create  | 'foobar'  | nil      | 'foobar' | nil                | false | :content
       :create  | 'foobar'  | ''       | 'foobar' | nil                | false | :content
       :create  | nil       | 'foobar' | 'foobar' | nil                | false | :file_path