/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.ambari.server.collections.functors;

import static org.easymock.EasyMock.expect;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.apache.ambari.server.collections.Predicate;
import org.easymock.EasyMockSupport;
import org.junit.Assert;
import org.junit.Test;

public class NotPredicateTest extends EasyMockSupport {

  @Test
  public void testEvaluate() {
    Predicate mockPredicate = createStrictMock(Predicate.class);
    expect(mockPredicate.evaluate("context")).andReturn(true).times(1);
    expect(mockPredicate.evaluate("context")).andReturn(false).times(1);

    replayAll();

    NotPredicate predicate = new NotPredicate(mockPredicate);

    // Try with true
    Assert.assertFalse(predicate.evaluate("context"));

    // Try with false
    Assert.assertTrue(predicate.evaluate("context"));

    verifyAll();

    Assert.assertArrayEquals(new Predicate[]{mockPredicate}, predicate.getPredicates());
  }

  @Test
  public void testToMap() {
    Predicate mockPredicate = createStrictMock(Predicate.class);
    expect(mockPredicate.toMap()).andReturn(Collections.<String, Object>singletonMap("nop", "foo")).times(1);

    replayAll();

    NotPredicate predicate = new NotPredicate(mockPredicate);
    Map<String, Object> actualMap = predicate.toMap();

    verifyAll();

    Map<String, Object> expectedMap = new HashMap<>();
    expectedMap.put("not", Collections.<String, Object>singletonMap("nop", "foo"));

    Assert.assertEquals(expectedMap, actualMap);
  }

  @Test
  public void testToJSON() {
    Predicate mockPredicate = createStrictMock(Predicate.class);
    expect(mockPredicate.toMap()).andReturn(Collections.<String, Object>singletonMap("nop", "foo")).times(1);

    replayAll();

    NotPredicate predicate = new NotPredicate(mockPredicate);
    String actualJSON = predicate.toJSON();

    verifyAll();

    String expectedJSON = "{\"not\":{\"nop\":\"foo\"}}";

    Assert.assertEquals(expectedJSON, actualJSON);
  }
}