test: add parser test

src/core/directives/define.ts

@@ -1,4 +1,5 @@
-import { DefineStatement, DefineToken, defineDirective } from "..";
+import { defineDirective } from "../directive";
+import { DefineStatement, DefineToken } from "../types";
 import { createProgramNode, simpleMatchToken } from "../utils";
 
 export const theDefineDirective = defineDirective<DefineToken, DefineStatement>((context) => ({

src/core/directives/message.ts

@@ -1,4 +1,5 @@
-import { MessageStatement, MessageToken, defineDirective } from "..";
+import { defineDirective } from "../directive";
+import { MessageToken, MessageStatement } from "../types";
 import { createProgramNode, simpleMatchToken } from "../utils";
 
 export const MessageDirective = defineDirective<MessageToken, MessageStatement>((context) => ({

test/parser.test.ts

@@ -0,0 +1,17 @@
+import { describe, expect, it } from 'vitest'
+import { Parser } from '../src'
+
+describe('Parser', () => {
+  it('should parse code statements', () => {
+    const tokens = [{ type: 'code', value: 'console.log("Hello, World!")' }]
+    const ast = Parser.parse(tokens)
+    expect(ast.body).toHaveLength(1)
+    expect(ast.body[0].type).toBe('CodeStatement')
+    expect(ast.body[0].value).toBe('console.log("Hello, World!")')
+  })
+
+  it('should throw an error for unknown token type', () => {
+    const tokens = [{ type: 'unknown', value: 'unknown token' }]
+    expect(() => Parser.parse(tokens)).toThrowError('Parser: Unknown token type: unknown')
+  })
+});