6502 stream parser -> Lezer grammar parser

test/parsers/testparser6502.js

@@ -0,0 +1,40 @@
+
+const assert = require('assert');
+const { EditorState } = require("@codemirror/state");
+const { syntaxTree } = require("@codemirror/language");
+const { asm6502 } = require("../../gen/parser/lang-6502.js");
+
+
+describe('6502 Parser', function () {
+
+    it('Should parse basic instructions', function () {
+        const code = `
+      lda #$00
+      sta $1234
+      rts
+    `;
+
+        // Create an editor state with the new parser
+        const state = EditorState.create({
+            doc: code,
+            extensions: [asm6502()]
+        });
+
+        // Check if the tree is available (basic check that parser didn't crash)
+        // In a real environment we might traverse the tree to check specific nodes
+        // but here we just want to ensure it instantiates and runs without throwing.
+        assert.ok(syntaxTree(state), "Syntax tree should be generated");
+    });
+
+    it('Should handle labels', function () {
+        const code = `
+    start:
+      jmp start
+    `;
+        const state = EditorState.create({
+            doc: code,
+            extensions: [asm6502()]
+        });
+        assert.ok(syntaxTree(state), "Syntax tree should be generated");
+    });
+});