feat: base testing files

config_spec.lua

@@ -0,0 +1,46 @@
+-- Unit tests for configuration management
+describe('cp.config', function()
+  local config
+
+  before_each(function()
+    config = require('cp.config')
+  end)
+
+  describe('setup', function()
+    it('returns default config when no user config provided', function()
+      -- Test default configuration values
+    end)
+
+    it('merges user config with defaults', function()
+      -- Test config merging behavior
+    end)
+
+    it('validates contest configurations', function()
+      -- Test contest config validation
+    end)
+
+    it('handles invalid config gracefully', function()
+      -- Test error handling for bad configs
+    end)
+  end)
+
+  describe('platform validation', function()
+    it('accepts valid platforms', function()
+      -- Test platform validation
+    end)
+
+    it('rejects invalid platforms', function()
+      -- Test platform rejection
+    end)
+  end)
+
+  describe('language configurations', function()
+    it('provides correct file extensions for languages', function()
+      -- Test language -> extension mappings
+    end)
+
+    it('provides correct compile commands', function()
+      -- Test compile command generation
+    end)
+  end)
+end)