/*
    * Copyright (C) 2013 The Guava Authors
    *
    * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
    * in compliance with the License. You may obtain a copy of the License at
    *
    * http://www.apache.org/licenses/LICENSE-2.0
    *
    * Unless required by applicable law or agreed to in writing, software distributed under the License
   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
   * or implied. See the License for the specific language governing permissions and limitations under
   * the License.
   */
  
  package com.google.common.base;
  
  import static com.google.common.base.Verify.verify;
  import static com.google.common.base.Verify.verifyNotNull;
  
  import com.google.common.annotations.GwtCompatible;
  
  import junit.framework.AssertionFailedError;
  import junit.framework.TestCase;
  
  /**
   * Unit test for {@link com.google.common.base.Verify}.
   */
  @GwtCompatible
  public class VerifyTest extends TestCase {
    public void testVerify_simple_success() {
      verify(true);
    }
  
    public void testVerify_simple_failure() {
      try {
        verify(false);
        fail();
      } catch (VerifyException expected) {
      }
    }
  
    public void testVerify_simpleMessage_success() {
      verify(true, "message");
    }
  
    public void testVerify_simpleMessage_failure() {
      try {
        verify(false, "message");
        fail();
      } catch (VerifyException expected) {
        assertEquals("message", expected.getMessage());
      }
    }
  
    public void testVerify_complexMessage_success() {
      verify(true, "%s", IGNORE_ME);
    }
  
    public void testVerify_complexMessage_failure() {
      try {
        verify(false, FORMAT, 5);
        fail();
      } catch (VerifyException expected) {
        checkMessage(expected);
      }
    }
  
    private static final String NON_NULL_STRING = "foo";
  
    public void testVerifyNotNull_simple_success() {
      String result = verifyNotNull(NON_NULL_STRING);
      assertSame(NON_NULL_STRING, result);
    }
  
    public void testVerifyNotNull_simple_failure() {
      try {
        verifyNotNull(null);
        fail();
      } catch (VerifyException expected) {
      }
    }
  
    public void testVerifyNotNull_complexMessage_success() {
      String result = verifyNotNull(NON_NULL_STRING, "%s", IGNORE_ME);
      assertSame(NON_NULL_STRING, result);
    }
  
    public void testVerifyNotNull_simpleMessage_failure() {
      try {
        verifyNotNull(null, FORMAT, 5);
        fail();
      } catch (VerifyException expected) {
        checkMessage(expected);
      }
    }
  
    private static final Object IGNORE_ME = new Object() {
      @Override public String toString() {
        throw new AssertionFailedError();
     }
   };
 
   private static final String FORMAT = "I ate %s pies.";
 
   private static void checkMessage(Exception e) {
     assertEquals("I ate 5 pies.", e.getMessage());
   }
 }