feat(runtime): Add IR Stack Frame Tests

Author: sa-fw-an

modules/runtime/src/interpreter/stack-frame.spec.ts

@@ -0,0 +1,37 @@
+import { describe, it, expect } from 'vitest';
+import { StackFrame } from './stack-frame';
+import { SymbolTable } from '../execution/scope/symbol-table';
+
+describe('StackFrame', () => {
+    it('should be instantiated correctly', () => {
+        const symbolTable = new SymbolTable();
+        const returnAddress = {
+            functionName: 'callerFunction',
+            blockLabel: 'entry',
+            instructionIndex: 5,
+        };
+        const frame = new StackFrame('testFunction', symbolTable, returnAddress);
+
+        expect(frame).toBeInstanceOf(StackFrame);
+        expect(frame.functionName).toBe('testFunction');
+        expect(frame.localScope).toBe(symbolTable);
+        expect(frame.returnAddress).toBe(returnAddress);
+        expect(frame.returnValue).toBe(null);
+    });
+
+    it('should allow setting return value', () => {
+        const symbolTable = new SymbolTable();
+        const returnAddress = {
+            functionName: 'callerFunction',
+            blockLabel: 'entry',
+            instructionIndex: 5,
+        };
+        const frame = new StackFrame('testFunction', symbolTable, returnAddress);
+
+        frame.returnValue = 42;
+        expect(frame.returnValue).toBe(42);
+
+        frame.returnValue = 'test string';
+        expect(frame.returnValue).toBe('test string');
+    });
+});