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   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF 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
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  package org.apache.beam.runners.dataflow.options;
  
  import static org.apache.beam.runners.dataflow.options.DataflowWorkerLoggingOptions.Level.WARN;
  import static org.junit.Assert.assertEquals;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import org.apache.beam.runners.dataflow.options.DataflowWorkerLoggingOptions.WorkerLogLevelOverrides;
  import org.apache.beam.sdk.util.common.ReflectHelpers;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableMap;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.ExpectedException;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests for {@link DataflowWorkerLoggingOptions}. */
  @RunWith(JUnit4.class)
  public class DataflowWorkerLoggingOptionsTest {
    private static final ObjectMapper MAPPER =
        new ObjectMapper()
            .registerModules(ObjectMapper.findModules(ReflectHelpers.findClassLoader()));
    @Rule public ExpectedException expectedException = ExpectedException.none();
  
    @Test
    public void testWorkerLogLevelOverrideWithInvalidLogLevel() {
      expectedException.expect(IllegalArgumentException.class);
      expectedException.expectMessage("Unsupported log level");
      WorkerLogLevelOverrides.from(ImmutableMap.of("Name", "FakeLevel"));
    }
  
    @Test
    public void testWorkerLogLevelOverrideForClass() throws Exception {
      assertEquals(
          "{\"org.junit.Test\":\"WARN\"}",
          MAPPER.writeValueAsString(
              new WorkerLogLevelOverrides().addOverrideForClass(Test.class, WARN)));
    }
  
    @Test
    public void testWorkerLogLevelOverrideForPackage() throws Exception {
      assertEquals(
          "{\"org.junit\":\"WARN\"}",
          MAPPER.writeValueAsString(
              new WorkerLogLevelOverrides().addOverrideForPackage(Test.class.getPackage(), WARN)));
    }
  
    @Test
    public void testWorkerLogLevelOverrideForName() throws Exception {
      assertEquals(
          "{\"A\":\"WARN\"}",
          MAPPER.writeValueAsString(new WorkerLogLevelOverrides().addOverrideForName("A", WARN)));
    }
  
    @Test
    public void testSerializationAndDeserializationOf() throws Exception {
      String testValue = "{\"A\":\"WARN\"}";
      assertEquals(
          testValue,
          MAPPER.writeValueAsString(MAPPER.readValue(testValue, WorkerLogLevelOverrides.class)));
    }
  }
  