test(grammar): add first test

Author: char0n

test/runtime-expression.js test/grammar.jstest/runtime-expression.js renamed to test/grammar.js

@@ -2,18 +2,18 @@ import * as fs from 'node:fs';
 import * as path from 'node:path';
 import { assert } from 'chai';
 
-import { Grammar } from '../src/index.js'
+import { Grammar } from '../src/index.js';
 
 describe('SABNF', function () {
   it('should export Grammar', function () {
     assert.isFunction(Grammar);
   });
 
   it('should convert to string', function () {
-    const abnfFilePath = path.join('..', 'src', 'runtime-expression.bnf');
+    const abnfFilePath = path.join('..', 'src', 'grammar.bnf');
     const abnf = fs.readFileSync(new URL(abnfFilePath, import.meta.url)).toString();
     const grammar = new Grammar();
 
     assert.strictEqual(abnf, grammar.toString());
-  })
-})
+  });
+});