Flutter 测试：测试改变了基础调试变量的值

Question

当我运行集成测试时，测试失败并出现以下错误：

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[+1358 ms] flutter: \xe2\x95\x90\xe2\x95\x90\xe2\x95\xa1 EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK \xe2\x95\x9e\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\xe2\x95\x90\n[        ] flutter: The following assertion was thrown running a test:\n[        ] flutter: The value of a foundation debug variable was changed by the test.\n[        ] flutter: \n[        ] flutter: When the exception was thrown, this was the stack:\n[        ] flutter: #0      debugAssertAllFoundationVarsUnset.<anonymous closure> (package:flutter/src/foundation/debug.dart:30:7)\n[        ] flutter: #1      debugAssertAllFoundationVarsUnset (package:flutter/src/foundation/debug.dart:32:4)\n[        ] flutter: #2      TestWidgetsFlutterBinding._verifyInvariants (package:flutter_test/src/binding.dart:834:12)\n[        ] flutter: #3      TestWidgetsFlutterBinding._runTestBody (package:flutter_test/src/binding.dart:821:7)\n[        ] flutter: <asynchronous suspension>\n[        ] flutter: \n[        ] flutter: The test description was:\n

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当我调试异常时，我发现这个检查点失败了：

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debugDefaultTargetPlatformOverride != null  // it is TargetPlatform.macos\n

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我不知道如何处理这个错误。该值可以在任何地方更改，这会使我的测试失败。\n有任何解决方案或解决方法吗？

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Answer 1

有同样的情况，我的解决方案是：

在完成测试之前，您必须将 TargetPlatform 设置为 null

 debugDefaultTargetPlatformOverride = TargetPlatform.iOS;

//  HERE RUN YOUR TESTS AND CHECKS

debugDefaultTargetPlatformOverride = null;