test(expressions): use validate

Author: FyreByrd

apps/parser/test/integration/expressions.test.ts

@@ -1,5 +1,6 @@
 import * as TestSubject from '@encode/parser/lib';
-import { assert, assertEquals, assertGreater } from '@std/assert';
+import { v } from '@encode/parser/lib';
+import { assert, assertEquals } from '@std/assert';
 import { performParsingTestCase, useGlobalSettings } from '@/test/utils/mod.ts';
 
 Deno.test('Expression parsing #integration', async (t) => {
@@ -25,8 +26,21 @@ Deno.test('Expression parsing #integration', async (t) => {
 
     assert(parser.errors.length === 0, 'Parser should not error');
 
-    assert(parserOutput.statement);
-    assertGreater(parserOutput.statement.length, 0, 'Statements should be generated');
+    v.file(parserOutput, [
+      [
+        'declaration',
+        [
+          'a',
+          v.none,
+          [
+            ['nested', [['constant', ['INT', '1']], v.none, '*', [['constant', ['INT', '2']]]]],
+            v.none,
+            '+',
+            [['constant', ['INT', '3']]],
+          ],
+        ],
+      ],
+    ]);
 
     assertEquals(precOutput, 1, 'Expression should be reordered');
   });