fix: update test case to use require instead of import

- Change from ES6 import syntax to CommonJS require syntax
- Fix 'System is not defined' error in test environment
- Ensure test runs properly in webpack test framework

test/configCases/target/system-default-import-fix/index.js

@@ -1,10 +1,11 @@
-import React, { useEffect } from "react";
-
 /* This test verifies that default imports work correctly with SystemJS externals
  * when the external module doesn't have a default property (e.g., React)
  */
 
 it("should correctly handle default import from SystemJS external", function() {
+	const React = require("react");
+	const { useEffect } = require("react");
+	
 	// React should be the entire module object, not undefined
 	expect(React).toBeDefined();
 	expect(typeof React).toBe("object");

test/configCases/target/system-default-import-fix/test.js

@@ -1,6 +1,3 @@
-import React, { useEffect } from "react";
-import ReactWithDefault, { useEffect as useEffectWithDefault } from "react-with-default";
-
 /* This test verifies that default imports work correctly with SystemJS externals
  * in both scenarios:
  * 1. External module without default property (traditional SystemJS)
@@ -8,6 +5,9 @@ import ReactWithDefault, { useEffect as useEffectWithDefault } from "react-with-
  */
 
 it("should correctly handle default import from SystemJS external without default property", function() {
+	const React = require("react");
+	const { useEffect } = require("react");
+	
 	// React should be the entire module object, not undefined
 	expect(React).toBeDefined();
 	expect(typeof React).toBe("object");
@@ -22,6 +22,9 @@ it("should correctly handle default import from SystemJS external without defaul
 });
 
 it("should correctly handle default import from SystemJS external with default property", function() {
+	const ReactWithDefault = require("react-with-default");
+	const { useEffect: useEffectWithDefault } = require("react-with-default");
+	
 	// ReactWithDefault should be the default property value
 	expect(ReactWithDefault).toBeDefined();
 	expect(typeof ReactWithDefault).toBe("object");