the basic example test failed( solved)

Update:

the reason is that the root path is only for authorized user, so the response is 302(redirect)

============================= I decide to learn test and tried with a old project. Here is result:

Warning: TTY mode is not supported on Windows platform.

   RUNS  Tests\Unit\ExampleTest
  • basic test

  Tests:  2 pending

   PASS  Tests\Unit\ExampleTest
  ✓ basic test

   RUNS  Tests\Feature\ExampleTest
  • basic test

  Tests:  1 passed, 1 pending

   FAIL  Tests\Feature\ExampleTest
  ✕ basic test

  Tests:  1 failed, 1 passed

  Expected status code 200 but received 302. Failed asserting that 200 is identical to 302.

  at C:\apcom_projects\garage\vendor\phpunit\phpunit\src\Framework\Constraint\Constraint.php:118
    114|         if (!empty($description)) {
    115|             $failureDescription = $description . "\n" . $failureDescription;
    116|         }
    117|
  > 118|         throw new ExpectationFailedException(
    119|             $failureDescription,
    120|             $comparisonFailure
    121|         );
    122|     }

  1   C:\apcom_projects\garage\vendor\phpunit\phpunit\src\Framework\Constraint\IsIdentical.php:93
      PHPUnit\Framework\Constraint\Constraint::fail("Expected status code 200 but received 302.")

  2   C:\apcom_projects\garage\vendor\phpunit\phpunit\src\Framework\Assert.php:2887
      PHPUnit\Framework\Constraint\IsIdentical::evaluate("Expected status code 200 but received 302.")

I did not add or modify any test code. the project was recently updated from laravel 5.8 to 7, maybe I missed something during update??