code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC licenses this file
  // to you under the Apache License, Version 2.0 (the
  // "License"); you may not use this file except in compliance
  // with the License.  You may obtain a copy of the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing,
  // software distributed under the License is distributed on an
  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  // KIND, either express or implied.  See the License for the
  // specific language governing permissions and limitations
  // under the License.
  
  package org.openqa.selenium.docker;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.openqa.selenium.docker.Device.device;
  
  import java.util.Arrays;
  import java.util.stream.Stream;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.Arguments;
  import org.junit.jupiter.params.provider.MethodSource;
  
  class DeviceTest {
  
    public static Stream<Arguments> data() {
      return Arrays.stream(
              new Object[][] {
                // pathOnHost, pathInContainer, cgroupPermissions, expectedCgroupPermissions
                {"/dev/tty", "/dev/tty", "crw", "crw", true},
                {"/dev/tty", "/dev/tty", null, "crw", true},
                {"/dev/tty", "/dev/tty", "", "crw", true},
                {"/dev/tty", "/dev/tty", "  ", "crw", true}
              })
          .map(Arguments::of);
    }
  
    @ParameterizedTest
    @MethodSource("data")
    void deviceShouldHaveDefinedPermissionsApplied(
        String pathOnHost,
        String pathInContainer,
        String cgroupPermissions,
        String expectedCgroupPermissions,
        boolean matchCgroupPermissions) {
      Device device = device(pathOnHost, pathInContainer, cgroupPermissions);
      assertThat(device.getCgroupPermissions().contentEquals(expectedCgroupPermissions))
          .describedAs("Expected %s in cgroupPermissions", expectedCgroupPermissions)
          .isEqualTo(matchCgroupPermissions);
    }
  }
  