flow-chev-edges.spec.js going through

test-lexer.mjs

@@ -0,0 +1,21 @@
+// Test the actual lexer to see what tokens are generated
+import { FlowchartLexer } from './packages/mermaid/src/diagrams/flowchart/parser/flowLexer.ts';
+
+const testInputs = ['A', 'A-->B', 'graph TD;A-->B;', '-->', 'A-', '>B'];
+
+console.log('Testing actual lexer:');
+testInputs.forEach((input) => {
+  console.log(`\nInput: "${input}"`);
+  try {
+    const result = FlowchartLexer.tokenize(input);
+    if (result.errors.length > 0) {
+      console.log('Errors:', result.errors);
+    }
+    console.log(
+      'Tokens:',
+      result.tokens.map((t) => [t.image, t.tokenType.name])
+    );
+  } catch (error) {
+    console.log('Error:', error.message);
+  }
+});