Extra Args encoding/decoding (#42)

* feat: implement EVM Extra Args V2 encoding and decoding

* feat: Add SVM Extra Args V1 encoding and decoding functionality

* fix: Remove unnecessary blank lines in decodeEVMExtraArgsV2 function

* chore: refactor extraArgs tests to jest from vitest by keeping the 100% coverage. Add prettier and eslint

* feat: add hex utility functions

* refactor: introduce minimum length constants for EVM and SVM Extra Args, updating related tests and error messages

Author: andrejrakic

.gitignore

@@ -9,3 +9,6 @@ dist/
 *.tsbuildinfo
 bin
 .codegpt
+
+# jest coverage
+coverage/

packages/ccip-svm/.prettierignore

@@ -0,0 +1,2 @@
+node_modules/
+dist/

packages/ccip-svm/.prettierrc

@@ -0,0 +1,7 @@
+{
+    "singleQuote": true,
+    "trailingComma": "all",
+    "tabWidth": 2,
+    "semi": false,
+    "printWidth": 120
+}

packages/ccip-svm/eslint.config.js

@@ -0,0 +1,69 @@
+import js from '@eslint/js'
+import tseslint from '@typescript-eslint/eslint-plugin'
+import tsparser from '@typescript-eslint/parser'
+import prettier from 'eslint-plugin-prettier'
+import prettierConfig from 'eslint-config-prettier'
+
+export default [
+  js.configs.recommended,
+  {
+    files: ['**/*.{js,ts}'],
+    languageOptions: {
+      parser: tsparser,
+      parserOptions: {
+        ecmaVersion: 'latest',
+        sourceType: 'module',
+      },
+      globals: {
+        console: 'readonly',
+        process: 'readonly',
+        Buffer: 'readonly',
+        __dirname: 'readonly',
+        __filename: 'readonly',
+        global: 'readonly',
+        module: 'readonly',
+        require: 'readonly',
+        exports: 'readonly',
+      },
+    },
+    plugins: {
+      '@typescript-eslint': tseslint,
+      prettier: prettier,
+    },
+    rules: {
+      ...tseslint.configs.recommended.rules,
+      ...prettierConfig.rules,
+      'prettier/prettier': 'error',
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/ban-ts-comment': 'off',
+      '@typescript-eslint/no-non-null-assertion': 'off',
+      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
+      '@typescript-eslint/explicit-module-boundary-types': 'off',
+    },
+  },
+  {
+    files: ['**/*.test.{js,ts}', '**/__tests__/**/*.{js,ts}'],
+    languageOptions: {
+      globals: {
+        describe: 'readonly',
+        it: 'readonly',
+        test: 'readonly',
+        expect: 'readonly',
+        beforeEach: 'readonly',
+        afterEach: 'readonly',
+        beforeAll: 'readonly',
+        afterAll: 'readonly',
+        jest: 'readonly',
+      },
+    },
+  },
+  {
+    ignores: [
+      'node_modules/**',
+      'dist/**',
+      'coverage/**',
+      '*.config.js',
+      '*.config.json',
+    ],
+  },
+]

packages/ccip-svm/jest.config.json

@@ -0,0 +1,22 @@
+{
+    "preset": "ts-jest",
+    "testEnvironment": "node",
+    "testMatch": [
+        "**/__tests__/**/*.test.ts"
+    ],
+    "collectCoverageFrom": [
+        "src/**/*.ts",
+        "!src/**/*.d.ts",
+        "!src/__tests__/**/*"
+    ],
+    "moduleFileExtensions": [
+        "ts",
+        "js",
+        "json"
+    ],
+    "transform": {
+        "^.+\\.ts$": "ts-jest"
+    },
+    "workerThreads": true,
+    "testTimeout": 180000
+}