feat(content): hidden test cases

backend/data/questions/online-stock-span.yaml

@@ -8,6 +8,32 @@ categories:
 patterns:
   - monotonic-stack
 
+function_signature: "class StockSpanner"
+
+test_cases:
+  visible:
+    - input:
+        operations: ["StockSpanner", "next", "next", "next", "next", "next", "next", "next"]
+        args: [[], [100], [80], [60], [70], [60], [75], [85]]
+      expected: [null, 1, 1, 1, 2, 1, 4, 6]
+  hidden:
+    - input:
+        operations: ["StockSpanner", "next", "next", "next"]
+        args: [[], [100], [100], [100]]
+      expected: [null, 1, 2, 3]
+    - input:
+        operations: ["StockSpanner", "next", "next", "next", "next"]
+        args: [[], [31], [41], [48], [59]]
+      expected: [null, 1, 2, 3, 4]
+    - input:
+        operations: ["StockSpanner", "next", "next", "next", "next"]
+        args: [[], [100], [90], [80], [70]]
+      expected: [null, 1, 1, 1, 1]
+    - input:
+        operations: ["StockSpanner", "next", "next", "next", "next", "next"]
+        args: [[], [28], [14], [28], [35], [46]]
+      expected: [null, 1, 1, 3, 4, 5]
+
 description: |
   Design an algorithm that collects daily price quotes for some stock and returns **the span** of that stock's price for the current day.