code: package com.puppycrawl.tools.checkstyle.checks.indentation.indentation; //indent:0 exp:0
  
  /**                                                                           //indent:0 exp:0
   * This test-input is intended to be checked using following configuration:   //indent:1 exp:1
   *                                                                            //indent:1 exp:1
   * arrayInitIndent = 4                                                        //indent:1 exp:1
   * basicOffset = 4                                                            //indent:1 exp:1
   * braceAdjustment = 0                                                        //indent:1 exp:1
   * caseIndent = 4                                                             //indent:1 exp:1
   * forceStrictCondition = false                                               //indent:1 exp:1
   * lineWrappingIndentation = 4                                                //indent:1 exp:1
   * tabWidth = 4                                                               //indent:1 exp:1
   * throwsIndent = 4                                                           //indent:1 exp:1
   *                                                                            //indent:1 exp:1
   *                                                                            //indent:1 exp:1
   */                                                                           //indent:1 exp:1
  @interface MyAnnotation3 { //indent:0 exp:0
      String name(); //indent:4 exp:4
      int version(); //indent:4 exp:4
  } //indent:0 exp:0
  
  @MyAnnotation3(name = "ABC", version = 1) //indent:0 exp:0
  public class InputIndentation15Extensions //indent:0 exp:0
  { //indent:0 exp:0
  
  } //indent:0 exp:0
  
  enum Enum1 //indent:0 exp:0
  { //indent:0 exp:0
      A, B, C; //indent:4 exp:4
      Enum1() {} //indent:4 exp:4
      public String toString() { //indent:4 exp:4
          return ""; //some custom implementation //indent:8 exp:8
      } //indent:4 exp:4
  } //indent:0 exp:0
  
  interface TestRequireThisEnum //indent:0 exp:0
  { //indent:0 exp:0
      enum DAY_OF_WEEK //indent:4 exp:4
      { //indent:4 exp:4
          SUNDAY, //indent:8 exp:8
          MONDAY, //indent:8 exp:8
          TUESDAY, //indent:8 exp:8
          WEDNESDAY, //indent:8 exp:8
          THURSDAY, //indent:8 exp:8
          FRIDAY, //indent:8 exp:8
          SATURDAY //indent:8 exp:8
      } //indent:4 exp:4
  } //indent:0 exp:0
  