feat: base testing files

problem_spec.lua

@@ -0,0 +1,81 @@
+-- Unit tests for problem context and file management
+describe('cp.problem', function()
+  local problem
+  local temp_dir
+
+  before_each(function()
+    problem = require('cp.problem')
+    temp_dir = vim.fn.tempname()
+    vim.fn.mkdir(temp_dir, 'p')
+    -- Change to temp directory for testing
+    vim.api.nvim_set_current_dir(temp_dir)
+  end)
+
+  after_each(function()
+    vim.fn.delete(temp_dir, 'rf')
+  end)
+
+  describe('context creation', function()
+    it('creates context for Codeforces problems', function()
+      -- Test context creation with proper paths
+    end)
+
+    it('creates context for CSES problems', function()
+      -- Test CSES-specific context
+    end)
+
+    it('generates correct file paths', function()
+      -- Test source file path generation
+    end)
+
+    it('generates correct build paths', function()
+      -- Test build directory structure
+    end)
+  end)
+
+  describe('template handling', function()
+    it('applies language templates correctly', function()
+      -- Test template application
+    end)
+
+    it('handles custom templates', function()
+      -- Test user-defined templates
+    end)
+
+    it('supports snippet integration', function()
+      -- Test LuaSnip integration
+    end)
+  end)
+
+  describe('file operations', function()
+    it('creates directory structure', function()
+      -- Test directory creation (build/, io/)
+    end)
+
+    it('handles existing files gracefully', function()
+      -- Test behavior when files exist
+    end)
+
+    it('sets up input/output files', function()
+      -- Test I/O file creation
+    end)
+  end)
+
+  describe('language support', function()
+    it('supports C++ compilation', function()
+      -- Test C++ setup and compilation
+    end)
+
+    it('supports Python execution', function()
+      -- Test Python setup
+    end)
+
+    it('supports Rust compilation', function()
+      -- Test Rust setup
+    end)
+
+    it('supports custom language configurations', function()
+      -- Test user-defined language support
+    end)
+  end)
+end)