code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.commons.enums;
  
  import static io.airbyte.commons.enums.Enums.convertTo;
  import static io.airbyte.commons.enums.Enums.isCompatible;
  import static io.airbyte.commons.enums.Enums.toEnum;
  
  import java.util.Optional;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  class EnumsTest {
  
    enum E1 {
      TEST,
      TEST2
    }
  
    enum E2 {
      TEST
    }
  
    enum E3 {
      TEST,
      TEST2
    }
  
    enum E4 {
      TEST,
      TEST3
    }
  
    @Test
    void testConversion() {
      Assertions.assertEquals(E2.TEST, convertTo(E1.TEST, E2.class));
    }
  
    @Test
    void testConversionFails() {
      Assertions.assertThrows(IllegalArgumentException.class, () -> convertTo(E1.TEST2, E2.class));
    }
  
    @Test
    void testSelfCompatible() {
      Assertions.assertTrue(isCompatible(E1.class, E1.class));
    }
  
    @Test
    void testIsCompatible() {
      Assertions.assertTrue(isCompatible(E1.class, E3.class));
    }
  
    @Test
    void testNotCompatibleDifferentNames() {
      Assertions.assertFalse(isCompatible(E1.class, E4.class));
    }
  
    @Test
    void testNotCompatibleDifferentLength() {
      Assertions.assertFalse(isCompatible(E1.class, E4.class));
    }
  
    @Test
    void testNotCompatibleDifferentLength2() {
      Assertions.assertFalse(isCompatible(E4.class, E1.class));
    }
  
    enum E5 {
      VALUE_1,
      VALUE_TWO,
      value_three,
      value_4
    }
  
    @Test
    void testToEnum() {
      Assertions.assertEquals(Optional.of(E1.TEST), toEnum("test", E1.class));
      Assertions.assertEquals(Optional.of(E5.VALUE_1), toEnum("VALUE_1", E5.class));
      Assertions.assertEquals(Optional.of(E5.VALUE_1), toEnum("value_1", E5.class));
      Assertions.assertEquals(Optional.of(E5.VALUE_TWO), toEnum("VALUE_TWO", E5.class));
      Assertions.assertEquals(Optional.of(E5.VALUE_TWO), toEnum("valuetwo", E5.class));
      Assertions.assertEquals(Optional.of(E5.VALUE_TWO), toEnum("valueTWO", E5.class));
      Assertions.assertEquals(Optional.of(E5.VALUE_TWO), toEnum("valueTWO$", E5.class));
      Assertions.assertEquals(Optional.of(E5.VALUE_TWO), toEnum("___valueTWO___", E5.class));
      Assertions.assertEquals(Optional.of(E5.value_three), toEnum("VALUE_THREE", E5.class));
      Assertions.assertEquals(Optional.of(E5.value_4), toEnum("VALUE_4", E5.class));
      Assertions.assertEquals(Optional.empty(), toEnum("VALUE_5", E5.class));
    }
  
  }
  