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  package com.jcabi.log;
  
  import org.apache.commons.text.StringEscapeUtils;
  import org.apache.log4j.Level;
  import org.apache.log4j.spi.LoggingEvent;
  import org.hamcrest.MatcherAssert;
  import org.hamcrest.Matchers;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  import org.mockito.Mockito;
  
  /**
   * Test case for {@link MulticolorLayout}.
   *
   * @since 0.1
   */
  final class MulticolorLayoutTest {
  
      /**
       * Conversation pattern for test case.
       */
      private static final String CONV_PATTERN = "[%color{%p}] %color{%m}";
  
      @Test
      void transformsLoggingEventToText() {
          final MulticolorLayout layout = new MulticolorLayout();
          layout.setConversionPattern(MulticolorLayoutTest.CONV_PATTERN);
          final LoggingEvent event = Mockito.mock(LoggingEvent.class);
          Mockito.doReturn(Level.DEBUG).when(event).getLevel();
          Mockito.doReturn("hello").when(event).getRenderedMessage();
          MatcherAssert.assertThat(
              StringEscapeUtils.escapeJava(layout.format(event)),
              Matchers.equalTo(
                  "[\\u001B[2;37mDEBUG\\u001B[m] \\u001B[2;37mhello\\u001B[m"
              )
          );
      }
  
      @Test
      void overwriteDefaultColor() {
          final MulticolorLayout layout = new MulticolorLayout();
          layout.setConversionPattern(MulticolorLayoutTest.CONV_PATTERN);
          layout.setLevels("INFO:2;10");
          final LoggingEvent event = Mockito.mock(LoggingEvent.class);
          Mockito.doReturn(Level.INFO).when(event).getLevel();
          Mockito.doReturn("change").when(event).getRenderedMessage();
          MatcherAssert.assertThat(
              StringEscapeUtils.escapeJava(layout.format(event)),
              Matchers.equalTo(
                  "[\\u001B[2;10mINFO\\u001B[m] \\u001B[2;10mchange\\u001B[m"
              )
          );
      }
  
      @Test
      void rendersCustomConstantColor() {
          final MulticolorLayout layout = new MulticolorLayout();
          layout.setConversionPattern("%color-red{%p} %m");
          final LoggingEvent event = Mockito.mock(LoggingEvent.class);
          Mockito.doReturn(Level.DEBUG).when(event).getLevel();
          Mockito.doReturn("foo").when(event).getRenderedMessage();
          MatcherAssert.assertThat(
              StringEscapeUtils.escapeJava(layout.format(event)),
              Matchers.equalTo("\\u001B[31mDEBUG\\u001B[m foo")
          );
      }
  
      @Test
      void overwriteCustomConstantColor() {
          final MulticolorLayout layout = new MulticolorLayout();
         layout.setConversionPattern("%color-white{%p} %m");
         layout.setColors("white:10");
         final LoggingEvent event = Mockito.mock(LoggingEvent.class);
         Mockito.doReturn(Level.DEBUG).when(event).getLevel();
         Mockito.doReturn("const").when(event).getRenderedMessage();
         MatcherAssert.assertThat(
             StringEscapeUtils.escapeJava(layout.format(event)),
             Matchers.equalTo("\\u001B[10mDEBUG\\u001B[m const")
         );
     }
 
     @Test
     void rendersAnsiConstantColor() {
         final MulticolorLayout layout = new MulticolorLayout();
         layout.setConversionPattern("%color-0;0;31{%p} %m");
         final LoggingEvent event = Mockito.mock(LoggingEvent.class);
         Mockito.doReturn(Level.DEBUG).when(event).getLevel();
         Mockito.doReturn("bar").when(event).getRenderedMessage();
         MatcherAssert.assertThat(
             StringEscapeUtils.escapeJava(layout.format(event)),
             Matchers.equalTo("\\u001B[0;0;31mDEBUG\\u001B[m bar")
         );
     }
 
     @Test
     void throwsOnIllegalColorName() {
         Assertions.assertThrows(
             IllegalArgumentException.class,
             () -> {
                 final MulticolorLayout layout = new MulticolorLayout();
                 layout.setConversionPattern("%color-oops{%p} %m");
                 final LoggingEvent event = Mockito.mock(LoggingEvent.class);
                 Mockito.doReturn(Level.DEBUG).when(event).getLevel();
                 Mockito.doReturn("text").when(event).getRenderedMessage();
                 layout.format(event);
             }
         );
     }
 
 }