feat(ci): test boilerplates

spec/cache_spec.lua

@@ -0,0 +1,108 @@
+describe('cp.cache', function()
+  local cache
+
+  before_each(function()
+    cache = require('cp.cache')
+    cache.load()
+  end)
+
+  after_each(function()
+    cache.clear_contest_data('atcoder', 'test_contest')
+    cache.clear_contest_data('codeforces', 'test_contest')
+    cache.clear_contest_data('cses', 'test_contest')
+  end)
+
+  describe('load and save', function()
+    it('loads without error when cache file exists', function()
+      assert.has_no_errors(function()
+        cache.load()
+      end)
+    end)
+
+    it('saves and persists data', function()
+      local problems = { { id = 'A', name = 'Problem A' } }
+
+      assert.has_no_errors(function()
+        cache.set_contest_data('atcoder', 'test_contest', problems)
+      end)
+
+      local result = cache.get_contest_data('atcoder', 'test_contest')
+      assert.is_not_nil(result)
+      assert.equals('A', result.problems[1].id)
+    end)
+  end)
+
+  describe('contest data', function()
+    it('stores and retrieves contest data', function()
+      local problems = {
+        { id = 'A', name = 'First Problem' },
+        { id = 'B', name = 'Second Problem' }
+      }
+
+      cache.set_contest_data('codeforces', 'test_contest', problems)
+      local result = cache.get_contest_data('codeforces', 'test_contest')
+
+      assert.is_not_nil(result)
+      assert.equals(2, #result.problems)
+      assert.equals('A', result.problems[1].id)
+      assert.equals('Second Problem', result.problems[2].name)
+    end)
+
+    it('returns nil for missing contest', function()
+      local result = cache.get_contest_data('atcoder', 'nonexistent_contest')
+      assert.is_nil(result)
+    end)
+
+    it('clears contest data', function()
+      local problems = { { id = 'A' } }
+      cache.set_contest_data('atcoder', 'test_contest', problems)
+
+      cache.clear_contest_data('atcoder', 'test_contest')
+      local result = cache.get_contest_data('atcoder', 'test_contest')
+
+      assert.is_nil(result)
+    end)
+
+    it('handles cses expiry correctly', function()
+      local problems = { { id = 'A' } }
+      cache.set_contest_data('cses', 'test_contest', problems)
+
+      local result = cache.get_contest_data('cses', 'test_contest')
+      assert.is_not_nil(result)
+      assert.is_not_nil(result.expires_at)
+    end)
+  end)
+
+  describe('test cases', function()
+    it('stores and retrieves test cases', function()
+      local test_cases = {
+        { index = 1, input = '1 2', expected = '3' },
+        { index = 2, input = '4 5', expected = '9' }
+      }
+
+      cache.set_test_cases('atcoder', 'test_contest', 'A', test_cases)
+      local result = cache.get_test_cases('atcoder', 'test_contest', 'A')
+
+      assert.is_not_nil(result)
+      assert.equals(2, #result)
+      assert.equals('1 2', result[1].input)
+      assert.equals('9', result[2].expected)
+    end)
+
+    it('handles contest-level test cases', function()
+      local test_cases = { { input = 'test', expected = 'output' } }
+
+      cache.set_test_cases('cses', 'test_contest', nil, test_cases)
+      local result = cache.get_test_cases('cses', 'test_contest', nil)
+
+      assert.is_not_nil(result)
+      assert.equals(1, #result)
+      assert.equals('test', result[1].input)
+    end)
+
+    it('returns nil for missing test cases', function()
+      local result = cache.get_test_cases('atcoder', 'nonexistent', 'A')
+      assert.is_nil(result)
+    end)
+  end)
+end)