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JUnit5 apparently does not support @Rule: http://www.douevencode.com/articles/2018-06/grant-permission-no-rule/ “JUnit5, which is ultimately the future discourages to use @Rules"
JUnit5 has a planned feature to replace GrantPermissionRule but work on it seems to have stalled (as of this writing - 16 March 2022 - the feature has been part of the JUnit5 milestone “instrumentation-1.3.1” since 17 September 2021: https://github.com/mannodermaus/android-junit5/issues/251 )

With the above said, we can hack in a workaround to be able to grant permissions:

Code Block

language	java

import androidx.test.runner.permission.PermissionRequester;

public class SomeClass
{
    // Hacky workaround for JUnit5 not supporting @Rule
    private void GrantPermissions(String ... permissions)
    {
        PermissionRequester pr = new PermissionRequester();
        pr.addPermissions(permissions);
        pr.requestPermissions();
    }
}

Usage:

Code Block

language	java

public class SomeClass
{
    //...
    
    @Test
    public void SomeExampleTest()
    {
        GrantPermissions(android.Manifest.permission.BLUETOOTH_SCAN);
    
        VictorBleDeviceManager dm = new VictorBleDeviceManager(ApplicationProvider.getApplicationContext());
        List<VictorDeviceInfo> scannedDevices = dm.ScanForDevices().get();
        assertTrue(scannedDevices.isEmpty());
    }
}

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