// 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.support;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;

import java.util.concurrent.atomic.AtomicInteger;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;

@Tag("UnitTests")
class ThreadGuardTest {

  @Test
  void testProtect() throws Exception {
    WebDriver actual = mock(WebDriver.class);
    final WebDriver protect = ThreadGuard.protect(actual);
    final AtomicInteger successes = new AtomicInteger();
    Thread foo =
        new Thread(
            () -> {
              protect.findElement(By.id("foo"));
              successes.incrementAndGet();
            });
    foo.start();
    foo.join();
    assertThat(successes.get()).isZero();
  }

  @Test
  void testProtectSuccess() {
    WebDriver actual = mock(WebDriver.class);
    final WebDriver protect = ThreadGuard.protect(actual);
    assertThat(protect.findElement(By.id("foo"))).isNull();
  }
}
