Update covered? method to also check include?

doc/development/namespaces.md

@@ -229,7 +229,7 @@ trie = Namespaces::Traversal::TrieNode.build(traversal_ids)
 trie.prefix_search([9970]) # returns [[9970, 123], [9970, 456]] 
 
 trie.covered?([9970]) # returns false
-trie.covered?([9970, 123]) # returns false
+trie.covered?([9970, 123]) # returns true
 trie.covered?([9970, 123, 789]) # returns true
 ```
 

lib/namespaces/traversal/trie_node.rb

@@ -46,10 +46,10 @@ def prefix_search(traversal_ids)
         end
       end
 
-      # Check if traversal ID is already covered by a broader prefix
+      # Check if traversal ID is already covered by a broader prefix or included in trie
       # If trie contains [9970, 123] and [9970, 456]
       # covered?([9970]) returns false
-      # covered?([9970, 123]) returns false
+      # covered?([9970, 123]) returns true
       # covered?([9970, 123, 789]) returns true
       def covered?(traversal_ids)
         current_node = self
@@ -64,8 +64,7 @@ def covered?(traversal_ids)
           current_node = current_node.children[traversal_id]
         end
 
-        # It's not covered by a broader permission
-        false
+        current_node.end
       end
 
       def to_a

spec/lib/namespaces/traversal/trie_node_spec.rb

@@ -55,6 +55,10 @@
       expect(trie.covered?([1, 2, 3])).to be true
     end
 
+    it 'returns true for included traversal ID' do
+      expect(trie.covered?([1, 2])).to be true
+    end
+
     it 'returns false for non-covered traversal ID' do
       expect(trie.covered?([1, 3])).to be false
     end