content: package com.alibaba.otter.canal.client.adapter.support;
  
  import static org.mockito.AdditionalMatchers.or;
  import static org.mockito.Matchers.isA;
  import static org.mockito.Matchers.isNull;
  
  import com.diffblue.deeptestutils.mock.DTUMemberMatcher;
  import org.apache.commons.lang.StringUtils;
  import org.junit.Assert;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.ExpectedException;
  import org.junit.rules.Timeout;
  import org.junit.runner.RunWith;
  import org.powermock.api.mockito.PowerMockito;
  import org.powermock.core.classloader.annotations.PowerMockIgnore;
  import org.powermock.core.classloader.annotations.PrepareForTest;
  import org.powermock.modules.junit4.PowerMockRunner;
  
  import java.lang.reflect.Method;
  import java.util.Date;
  
  @RunWith(PowerMockRunner.class)
  @PowerMockIgnore({"javax.management.*"})
  public class UtilTest {
  
    @Rule public final ExpectedException thrown = ExpectedException.none();
  
    @Rule public final Timeout globalTimeout = new Timeout(10000);
  
    /* testedClasses: Util */
    // Test written by Diffblue Cover.
    @Test
    public void cleanColumnInputNotNullOutputNotNull() {
  
      // Arrange
      final String column = "1234";
  
      // Act
      final String actual = Util.cleanColumn(column);
  
      // Assert result
      Assert.assertEquals("1234", actual);
    }
  
    // Test written by Diffblue Cover.
    @Test
    public void cleanColumnInputNullOutputNull() {
  
      // Arrange
      final String column = null;
  
      // Act
      final String actual = Util.cleanColumn(column);
  
      // Assert result
      Assert.assertNull(actual);
    }
  
    // Test written by Diffblue Cover.
    @PrepareForTest(StringUtils.class)
    @Test
    public void parseDate2InputNotNullOutputNull() throws Exception {
  
      // Setup mocks
      PowerMockito.mockStatic(StringUtils.class);
  
      // Arrange
      final String datetimeStr = "1a 2b 3c";
      final Method isEmptyMethod =
          DTUMemberMatcher.method(StringUtils.class, "isEmpty", String.class);
      PowerMockito.doReturn(true)
          .when(StringUtils.class, isEmptyMethod)
          .withArguments(or(isA(String.class), isNull(String.class)));
  
      // Act
      final Date actual = Util.parseDate2(datetimeStr);
  
      // Assert result
      Assert.assertNull(actual);
    }
  
    // Test written by Diffblue Cover.
    @PrepareForTest(StringUtils.class)
    @Test
    public void parseDate2InputNotNullOutputNull2() throws Exception {
  
      // Setup mocks
      PowerMockito.mockStatic(StringUtils.class);
  
      // Arrange
      final String datetimeStr = "1a 2b 3c";
      final Method isEmptyMethod =
          DTUMemberMatcher.method(StringUtils.class, "isEmpty", String.class);
      PowerMockito.doReturn(false)
          .when(StringUtils.class, isEmptyMethod)
          .withArguments(or(isA(String.class), isNull(String.class)));
  
      // Act
      final Date actual = Util.parseDate2(datetimeStr);
  
      // Assert result
      Assert.assertNull(actual);
    }
  
    // Test written by Diffblue Cover.
    @PrepareForTest(StringUtils.class)
    @Test
    public void parseDateInputNotNullOutputNull() throws Exception {
  
      // Setup mocks
      PowerMockito.mockStatic(StringUtils.class);
  
      // Arrange
      final String datetimeStr = "a/b/c";
      final Method isEmptyMethod =
          DTUMemberMatcher.method(StringUtils.class, "isEmpty", String.class);
      PowerMockito.doReturn(true)
          .when(StringUtils.class, isEmptyMethod)
          .withArguments(or(isA(String.class), isNull(String.class)));
  
      // Act
      final Date actual = Util.parseDate(datetimeStr);
  
      // Assert result
      Assert.assertNull(actual);
    }
  }
  