content: /*
   * Copyright (C) 2015 AChep@xda <artemchep@gmail.com>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   * MA  02110-1301, USA.
   */
  package com.achep.base.tests;
  
  import androidx.annotation.NonNull;
  import androidx.annotation.Nullable;
  
  /**
   * A class for performing <i>oblivious</i> checks.
   *
   * @author Artem Chepurnoy
   */
  @SuppressWarnings("SameParameterValue")
  public abstract class Check {
  
      @Nullable
      private static Check sCheck;
  
      @NonNull
      public static Check getInstance() {
          if (sCheck == null) {
              sCheck = new CheckImpl();
          }
          return sCheck;
      }
  
      /**
       * Does nothing if the incoming param is {@code true}, crashes otherwise.
       *
       * @throws java.lang.RuntimeException
       * @see #isTrue(int)
       * @see #isFalse(boolean)
       */
      public abstract void isTrue(boolean bool);
  
      public abstract void isTrue(boolean bool, @NonNull String message);
  
      /**
       * Does nothing if the incoming param is not zero, crashes otherwise.
       *
       * @throws java.lang.RuntimeException
       * @see #isTrue(boolean)
       */
      public abstract void isTrue(int value);
  
      public abstract void isTrue(int value, @NonNull String message);
  
      /**
       * Does nothing if the incoming param is {@code false}, crashes otherwise. It's an opposite
       * to {@link #isTrue(boolean)}
       *
       * @throws java.lang.RuntimeException
       * @see #isTrue(boolean)
       */
      public abstract void isFalse(boolean bool);
  
      public abstract void isFalse(boolean bool, @NonNull String message);
  
      /**
       * Does nothing if the incoming param is {@code null}, crashes otherwise. It's an opposite
       * to {@link #isTrue(boolean)}
       *
       * @throws java.lang.RuntimeException
       * @see #isNonNull(Object)
       */
      public abstract void isNull(@Nullable Object object);
  
      public abstract void isNull(@Nullable Object object, @NonNull String message);
  
      /**
       * Does nothing if the incoming param is not {@code null}, crashes otherwise. It's an opposite
       * to {@link #isNull(Object)}
       *
       * @throws java.lang.RuntimeException
       * @see #isNull(Object)
       */
      public abstract void isNonNull(@NonNull Object object);
  
      public abstract void isNonNull(@NonNull Object object, @NonNull String message);
  
      /**
       * Does nothing if run on the {@link android.os.Looper#getMainLooper() main thread},
       * crashes otherwise.
       *
       * @throws java.lang.RuntimeException
       */
      public abstract void isInMainThread();
  
      public abstract void isInMainThread(@NonNull String message);
  }
  