feat: qol improvements

tests/cache_spec.lua

@@ -0,0 +1,55 @@
+-- Unit tests for caching system
+describe("cp.cache", function()
+  local cache
+  local temp_dir
+
+  before_each(function()
+    cache = require("cp.cache")
+    temp_dir = vim.fn.tempname()
+    vim.fn.mkdir(temp_dir, "p")
+    -- Mock cache directory
+  end)
+
+  after_each(function()
+    -- Clean up temp files
+    vim.fn.delete(temp_dir, "rf")
+  end)
+
+  describe("contest metadata caching", function()
+    it("stores contest metadata correctly", function()
+      -- Test storing contest data
+    end)
+
+    it("retrieves cached contest metadata", function()
+      -- Test retrieving contest data
+    end)
+
+    it("handles missing cache files gracefully", function()
+      -- Test missing cache behavior
+    end)
+  end)
+
+  describe("test case caching", function()
+    it("stores test cases for problems", function()
+      -- Test test case storage
+    end)
+
+    it("retrieves cached test cases", function()
+      -- Test test case retrieval
+    end)
+
+    it("handles cache invalidation", function()
+      -- Test cache expiry/invalidation
+    end)
+  end)
+
+  describe("cache persistence", function()
+    it("persists cache across sessions", function()
+      -- Test cache file persistence
+    end)
+
+    it("handles corrupted cache files", function()
+      -- Test corrupted cache recovery
+    end)
+  end)
+end)