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  package com.jcabi.aspects.aj;
  
  import org.hamcrest.MatcherAssert;
  import org.hamcrest.Matchers;
  import org.junit.jupiter.api.Test;
  
  /**
   * Test case for {@link Mnemos}.
   *
   * @since 0.0.0
   */
  final class MnemosTest {
  
      /**
       * The representation of a empty array.
       */
      private static final transient String EMPTY_ARRAY = "[]";
  
      @Test
      void buildsTextFromObject() {
          final Object[][] pairs = {
              new Object[] {1, "1"},
              new Object[] {1.43f, "1.43"},
              new Object[] {"\u20ac-plain", "'\u20ac-plain'"},
              new Object[] {"test ", "'test '"},
              new Object[] {null, "NULL"},
              new Object[] {new String[0], MnemosTest.EMPTY_ARRAY},
              new Object[] {new String[] {"abc", "x"}, "['abc', 'x']"},
              new Object[] {new Object[] {null, 5}, "[NULL, 5]"},
          };
          this.validateText(pairs);
      }
  
      @Test
      void handlesToxicObjectsGracefully() {
          MatcherAssert.assertThat(
              Mnemos.toText(
                  new Object() {
                      @Override
                      public String toString() {
                          throw new IllegalArgumentException("boom");
                      }
                  }, true, false
              ),
              Matchers.equalTo(
                  // @checkstyle LineLength (1 line)
                  "[com.jcabi.aspects.aj.MnemosTest$1 thrown java.lang.IllegalArgumentException(boom)]"
              )
          );
      }
  
      @Test
      void buildsTextFromIntArray() {
          final Object[][] pairs = {
              new Object[] {new int[0], MnemosTest.EMPTY_ARRAY},
              new Object[] {new int[] {1}, "[1]"},
              new Object[] {new int[] {1, 2, 3}, "[1, 2, 3]"},
          };
          this.validateText(pairs);
      }
  
      @Test
      void buildsTextFromLongArray() {
          final Object[][] pairs = {
              new Object[] {new long[0], MnemosTest.EMPTY_ARRAY},
              new Object[] {new long[] {2L}, "[2]"},
              new Object[] {new long[] {2L, 3L, 4L}, "[2, 3, 4]"},
          };
          this.validateText(pairs);
      }
 
     @Test
     void buildsTextFromFloatArray() {
         final Object[][] pairs = {
             new Object[] {new float[0], MnemosTest.EMPTY_ARRAY},
             new Object[] {new float[] {1.01f}, "[1.01]"},
             new Object[] {
                 new float[] {1.01f, 2.02f, 3.03f},
                 "[1.01, 2.02, 3.03]",
             },
         };
         this.validateText(pairs);
     }
 
     @Test
     void buildsTextFromDoubleArray() {
         final Object[][] pairs = {
             new Object[] {new double[0], MnemosTest.EMPTY_ARRAY},
             new Object[] {new double[] {2.01}, "[2.01]"},
             new Object[] {
                 new double[] {2.01, 2.02, 2.03},
                 "[2.01, 2.02, 2.03]",
             },
         };
         this.validateText(pairs);
     }
 
     @Test
     void buildsTextFromCharArray() {
         final Object[][] pairs = {
             new Object[] {new char[0], MnemosTest.EMPTY_ARRAY},
             new Object[] {new char[] {'a'}, "[a]"},
             new Object[] {new char[] {'a', 'b', 'c'}, "[a, b, c]"},
         };
         this.validateText(pairs);
     }
 
     @Test
     void buildsTextFromBooleanArray() {
         final Object[][] pairs = {
             new Object[] {new boolean[0], MnemosTest.EMPTY_ARRAY},
             new Object[] {new boolean[] {true}, "[true]"},
             new Object[] {
                 new boolean[] {true, false, false},
                 "[true, false, false]",
             },
         };
         this.validateText(pairs);
     }
 
     /**
      * Method that validates the text built from an object.
      * @param pairs The object pairs to validate.
      */
     private void validateText(final Object[]... pairs) {
         for (final Object[] pair : pairs) {
             MatcherAssert.assertThat(
                 Mnemos.toText(pair[0], false, false),
                 Matchers.equalTo(pair[1].toString())
             );
         }
     }
 }