feat(content): more test cases

backend/data/questions/rotting-oranges.yaml

@@ -10,6 +10,24 @@ patterns:
   - bfs
   - matrix-traversal
 
+function_signature: "def oranges_rotting(grid: list[list[int]]) -> int:"
+
+test_cases:
+  visible:
+    - input: { grid: [[2, 1, 1], [1, 1, 0], [0, 1, 1]] }
+      expected: 4
+    - input: { grid: [[2, 1, 1], [0, 1, 1], [1, 0, 1]] }
+      expected: -1
+    - input: { grid: [[0, 2]] }
+      expected: 0
+  hidden:
+    - input: { grid: [[0]] }
+      expected: 0
+    - input: { grid: [[1]] }
+      expected: -1
+    - input: { grid: [[2, 1, 1], [1, 1, 1], [1, 1, 2]] }
+      expected: 2
+
 description: |
   You are given an `m x n` `grid` where each cell can have one of three values: